NEWSLETTER 06/2019 10.06.2019

NEW PARTNERS OF SHARK-REFERENCES

We are happy to announce  Francesco Tiralongo as new partner. Details below:



 

Affiliation:

Ente Fauna Marina Mediterranea, Scientific Organization for the Research and Conservation of the Marine Biodiversity, ITALY

https://www.entefaunamarinamediterranea.it/

Department of Biological, Geological and Environmental Sciences, University of Catania, ITALY


Research Statement:

My research activity about elasmobranchs mainly concerns several aspects of the biology and ecology of Mediterranean coastal species, and the impact of fishing activity on elasmobranchs populations.

Would you like to become a shark-reference partner? Please contanct us per E-mail!

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New Images

 

Parmaturus angelae SOARES, DE CARVALHO, SCHWINGEL & GADIG, 2019:

Missing papers:

Many thanks to all friends of shark-references, who sent us some missing papers last month!

Shark-References would kindly like to ask you for your contribution to this project.

At the moment we are looking for some of the following papers:


Extinct Chondrichthyes:

MATSUMOTO, H. (1936) Upper Miocene vertebrates from Kumanodô, Natori district, province of Rikuzen. Dobutsugaku Zasshi, 48: 475–480, 5 fig.

DERANIYAGALA, P.E.P. (1937) Some Miocene fishes from Ceylon. Ceylon Journal of Science, 20 (3): 355–367,9 fig.

HANO, V. & SENES, J.A.N. (1953) Spodnomiocenna fauna pri Rapovciach [Die untermiozane Fauna bei Rapovce]. Geol Sbornfk Bratislava, 3 (3/4): 315–362

KUDRIN, L.N. (1957) O nachodkach zubov akul v otlozenijach miocena jugozapadnoj okrainy Russkoj platformy (On some finds of the shark's teeth in the Miocene's deposits in the South-Western border of the Russian platform). Geol. Sborn. Lvov. Geol. Obsc. (Geol. J . of Geol. Soc. in Lvov), 4, Lvov.

BELTAN, L. (1959) Sur la présence du genre Carcharodon Müller et Henle dans le Miocène de la Martinique (Petites Antilles francaises). C.R. Sommaire des Seances de la Societe Geologique de France, 6: 156–158

ZBYSZEWSKI, G. & FERREIRA, O. DA V. (1962) La faune Miocène de l’île de Santa Maria (Açores). Comunicações dos Serviços Geológicos de Portugal, 46: 247–289

MENESINI, E. (1967) I Pesci miocenici delle Arenarie di Ponsano. Atti della Società Toscana di Scienze Naturali, Serie A, 74 (1): 1–22.

DERANIYAGALA, P.E.P. (1969) A Miocene vertebrate faunule from the Malu Member of Ceylon. Spolia Zeylan, 31: 551–570, 19 fig., 10 tabl.

CAPPETTA, H. (1969) Les gisements de vertébrés de la région montpelliéraine. 2. Gisements miocènes. Bulletin du Bureau de Recherches géologiques et minières, 2 (1): 19–30

COMASCHI CARIA, I. (1973) I pesci del Miocene della Sardigna. Stabilimento Tipografico Editoriale Fossataro, Cagliari. 39 pp.

ALVINERIE, J. & ANDREIEFF, P. & ANGLADA, R. & AUBERT, J. & CAPPETTA, H. & CARALP, M. & CARATINI, C. & CARBONNEL, G. & CATZIGRAS, F. & COURME-RAULT, M.-D. & CHATEAUNEUF, J.-J. & DEMARCQ, G. & DUCASSE, O. & FATTON, E. & GLAÇON, G. & LABRACHERIE, M. & LAURIAT, A. & LE CALVEZ, Y. & LORENZ, C. & MAGNE, J. & MARGEREL, J.-P. & POIGNANT, A. & PUJOL, C. & ROGER, J. & ROMAN, J. & BLONDEAU, A. & MULLER, C. (1973) A propos de la limite oligo-miocène: résultats préliminaires d'une recherche collective sur les gisements d'Escornébéou (Saint-Géours-de-Maremne, Landes, Aquitaine méridionale). Présence de Globigerinoides dans les faunes de l'Oligocène supérieur. Comptes rendus sommaires des séances de la Société géologique de France: 75–76

SHIMADA, K. (1987) [Elasmobranchs from the Early Pliocene Naarai Formation, Choshi City, Chiba Prefecture, and from the Middle Miocene Tokigawa Group, Higashimatsuyama City, Saitama Prefecture, Japan]. Thirtieth Japanese Students Science Prize Complete Works, Japan Home Teacher Center, Tokyo: 354–357 [in Japanese]

NOMURA, M. & HATANAKA, O. & NISHIMOTO, H. & KARASAWA, H. & NANAO NOJIRIKO GROUP (1991) Megasqualus serriculus Jordan and Hannibal (Squalidae: Squaliformes: Elasmobranchii) from the Middle Miocene Nanao Calcareous Sandstone, Nanao City, Noto Peninsula, Central Japan. Bulletin of the Mizunami Fossil Museum, 18: 33–45

BALBINO, A.C. (1996) Sharks from the Middle and early Upper Miocene from Lisbon, Portugal. A check-list. Comunicações do Instituto Geológico e Mineiro, 82: 141–144

TANAKA, T. & MORI, S. (1996) Fossil elasmobranchs from the Oiso Formation (late Miocene) in the western part of Kanagawa Prefecture. Bulletin of the Hiratsuka City Museum, 19: 67–81

AVERIANOV, A.O. (2000) A new record of Hispidaspis prisca Sokolov, 1978 (Chondrichthyes: Lamniformes: Odontaspididae). Zoosystematica Rossica, 8: 349–350

KOZLOV, V.A. (2001) (A new species of carcharhinid shark from the Lower Miocene sediments of Northern Aral region) «in russian». Materialy po Stratigrafii i Paleontologii Urala, 6: 92–95

BOYD, B.M. (2016) Fossil sharks and rays of Gainesville creeks; Alachua County, Florida: Hogtown group; (middle Miocene to lower Pliocene). Florida Paleontological Society, Special Publication

GARIBOLDI, K. & BOSIO, G. & MALINVERNO, E. & GIONCADA, A. & DI CELMA, C. & VILLA, I.M. & URBINA, M. & BIANUCCI, G. (2017) Biostratigraphy, geochronology and sedimentation rates of the upper Miocene Pisco Formation at two important marine vertebrate fossil-bearing sites of southern Peru. Newsletters on Stratigraphy, 50 (4): 417-444
 




Extant Chondrichthyes:

DEVINCENZI, G.J. & TEAGUE, G.W. (1942) Ictiofauna del Rio Uruguay medio. Anales del Museo Nacional de Historia Natural de Montevideo, (Serie 2), 5 ( 4): 1–100 + index + i–viii, Pls. 1–6

KAMOHARA, T. (1943) Some unrecorded and two new fishes from Prov. Tosa, Japan. Bulletin of the Biogeographical Society of Japan, 13 (17): 125–137

DE BUEN, F. (1950) Contribuciones a la Ictiología. II. El tiburón vitamínico de la costa uruguaya Galeorhinus vitaminicus nov. sp., y algunas consideraciones generales sobre su biología. Publicaciones Cientificas, Servicio Oceanografico y de Pesca, Ministerio de Industrias y Trabajo, Montevideo No. 4: 153–162.

CADENAT, J. (1951) Initiations Africaines. III. Poissons de Mer du Sénégal. Institute Francais d'Afrique Noire. Initiations Africaines. III. Poissons de Mer du Sénégal.: 1–345

DE BUEN, F. (1952) El tiburón vitamínico de la costa Uruguaya, Galeorhinus vitaminicus nov. sp. y algunas consideraciones generales sobre su biologia. Rev. Fac.Hum.Cienc.Univ.Repúbl.Montevid., 7: 87–116

WEIBEZAHN, F.H. (1953) Una nueva especie de Scyliorhinus de Venezuela (Chondrichthyes - Elasmobranchii). Novedades cientificas. Serie zoológica. Museo de Historia Natural La Salle, 9: 1–7.

SMITH, J.L.B. (1958) The mystery killer, the new shark Carcharhinus vanrooyeni. Veld & Vlei, 3 (9): 12–14, 28.

SICCARDI, E. (1961) Cetorhinus en el Atlantico sur (Elasmobranchii: Cetorhinidae). Actas y trabajos del Primer Congreso Sudamericano de Zoologia, 4 (5): 251–263

CADENAT, J. (1963) Notes d'ichtyologie ouest-africaine. XXXIX. Notes sur les requins de la famille des Carchariidae et formes apparentées de l'Atlantique ouest-africain (avec la description d'une espèce nouvelle: Pseudocarcharias pelagicus, classée dans un sous-genre nouveau). Bulletin de l'Institut Français d'Afrique Noire (A), 25 (2): 526–537, 9 fig.

CASTEX, M.N. (1963) Una nueva especie de raya fluvial: Potamotrygon pauckei. Notas distintivas Boletín de la Academia Nacional de Ciencias (Córdoba), 43: 289–294

CADENAT, J. & MAUL, G.E. (1966) Note d'ichthyologie ouest-africaine. XLIII. Description d'une espèce nouvelle du genre Apristurus, A. maderensis. Bulletin de l'Institut Français d'Afrique Noire (A), 28 (2): 769–782

ABELLA, A. (1972) Halazgo de una nueva especie de Carcharinus en las costas de Rocha, Uruguay. Boletín de la Sociedad Zoológica del Uruguay, 2: 102–106

GUITART-MANDAY, D.J. (1972) Un nuevo género y especies de tiburón de la Familia Triakidae. Poeyana (Ser.A), 1972 (99): 1–4

GUBANOV, E.P. & SCHLEIB, N.A. (1980) Sharks of the Arabian Gulf. Kuwait Ministry of Public Works, Agracultural Department, Fisheries Division. Sharks of the Arabian Gulf.: 1–69

DOLGANOV, V.N. (1983) Rukovodstvo po opredeleniyu khryashchevykh ryb dal'nevostochnykh morei SSSR i sopredel'nykh vod. [Manual for identification of cartilaginous fishes of Far East seas of USSR and adjacent waters.] TINRO, Vladivostok. Rukovodstvo po opredeleniyu khryashchevykh ryb dal'nevostochnykh morei SSSR i sopredel'nykh vod.: 92 pp.

SHEN, S.-C. & LIU, C.-S. (1984) A new stingray of the genus Hexatrygon from Taiwan. Acta Oceanographic Taiwanica, 15: 201–206

SHEN, S.-C. (1986) A new species of stingray Hexatrygon taiwanensis from Taiwan Strait. Journal of Taiwan Museum, 39 (1): 175–180




Please support www.shark-references.com and send missing papers (not listed papers or papers without the info-symbol) to juergen.pollerspoeck@shark-references.com or nicolas.straube@shark-references.com

Upcoming Meetings:

Annual Meeting of the Paleontological Society (Paläontologische Gesellschaft) 2019

15 –18 September 2019 in Munich

We are happy to announce the Annual conference of the Paläontologische Gesellschaft (PalGes) in Munich. We aim to organize an international meeting at which cutting-edge research in the fields of palaeontology, geobiology and palaeobiology is presented. PalGes is one of the oldest and largest palaeontogical societies of the world and it is the fifth time that this conference is held in Munich (1950, 1960, 1985, 2010, 2019).

Munich is Bavaria’s beautiful capital situated at the foot of the Alps and surrounded by several picturesque lakes. It has been ranked among the top cities in terms of life quality, is famous for its museums and beer gardens. Munich is also a top place for natural sciences.

Symposia and workshops

Symposia

• Evolving ecosystems (Organizers: Alexander Nützel & Joachim Haug) more details
• Fossil fishes in the context of evolution, environments and biogeography (Organizers: Bettina Reichenbacher, Tomas Přikryl & Gloria Arratia)
  more more details
• Late Paleozoic and Mesozoic Plants and Floras (Organizers: Michael Krings, Benjamin Bomfleur & Christian Pott)
• Mikropaläontologie (Organizer: Anna Pint)
• Molecular Geobiology and Paleobiology (Organisation: Gert Wörheide, Dirk Erpenbeck, Sebastian Höhna, William Orsi) more details
• Physiology in Deep Time (Organizers: Uwe Balthasar, Kenneth De Baets, Carl Reddin, Nussaïbah Raja Schoob) 
  more details

Workshops

• Total-evidence divergence time estimation from extinct and extant taxa (Convener: Sebastian Höhna) more details
• Open data analysis and publication: from morphology to evolutionary patterns (Conveners: Emilia Jarochowska and Kenneth De Baets; Guest speakers: Melanie Hopkins & Stephan Lautenschlager) more details

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THE ANNOUNCEMENT OF XVI EUROPEAN CONGRESS OF ICHTHYOLOGY

Dear colleagues,
We invite you to attend the XVI European Congress of Ichthyology, to be held in Lausanne, Switzerland on 2-6 September 2019. The scientific program will include sessions and symposia on taxonomy, phylogeny, anatomy, ecology, conservation, ethology, life history and other aspects of fish biology. Participants are encouraged to make oral and/or poster presentations. Ichthyologists wishing to organize a symposium on a specific topic are ecouraged to contact the organizers.

ORGANIZED BY: European Ichthyological Society
BOARD: Dr. Ivana Buj (president), University of Zagreb, Croatia
Dr. Jörg Bohlen, Institute of Animal Physiology and Genetics, Czech Republic
Dr. Alberto Teodorico Correia, University of Porto, Portugal
Dr. Maurice Kottelat, Delémont, Switzerland
Dr. Lukas Kalous, Czech University of Life Sciences, Prague, Czech Republic
Dr. Lukas Rüber, Natural History Museum, Bern, Switzerland

HEAD OF THE ORGANIZING COMMITTEE: Dr. Maurice Kottelat
LOCAL ORGANIZING COMMITTEE will be announced soon.
WEB SITE: http://ichthyology.eu/congresses/actual-congresses/
CONTACT: ivana.buj@biol.pmf.hr (for administrative issues, registration etc.),
mkottelat@dplanet.ch (for technical and local issues, etc.)

CONFERENCE VENUE: All conference activities will be held at the Aquatis Hotel and in
the facilities of the Aquatis Aquarium, both situated in Lausanne, Switzerland. AquatisbAquarium is the largest freshwater aquarium and vivarium in Europe. Lausanne is situated on the shore of Lake Geneva and is recognized as the home of the international sport, hosting the International Olympic Committee, but, in September 2019, it will be the meeting point of European and world ichthyologists.

https://www.aquatis-hotel.ch/en/
https://www.aquatis.ch/en/
https://www.myswitzerland.com/en/lausanne.html

SOCIAL PROGRAMME: to be announced later

CONFERENCE FEE: will be included in the Second announcement
IMPORTANT DATES:
December 2018 – Second announcement released
1st February – registration and abstract submission opens
30th April – abstract submission closes
31st May – deadline for registration
30th June – deadline for the late registration

Looking forward to meeting you in Lausanne!

DA SILVA, J.P.C.B. & LOBODA, T.S. (2019): Potamotrygon marquesi, a new species of neotropical freshwater stingray (Potamotrygonidae) from the Brazilian Amazon Basin. Journal of Fish Biology, in press

New species: Potamotrygon marquesi

Abstract: Potamotrygon marquesi, sp. nov., is described and compared with other species of Potamotrygon occurring in the Amazon Basin. The identity of this new species is supported by an extensive external and internal morphological study including coloration pattern, squamation, skeleton and ventral lateral‐line canals. Morphometrics and meristics were used to further distinguish P. marquesi from congeners. Potamotrygon marquesi was first considered to fall within the range of variation found in P. motoro. However, even with an extensive variation in coloration observed in P. motoro, this new species presents a series of autapomorphies that confidently distinguishes it from what is understood as the morphological variation found in P. motoro. Additional morphological characters that diagnose P. marquesi include three angular cartilages, asymmetrical star‐shaped denticles, a single regular row of spines on tail dorsum, lateral row of caudal spines near the barb insertion, dorsal disc background in beige and grey mixed with shades of grey and bearing open and closed bicolored rings, among others. Although presenting a gap of distribution along the west–east extension of the Amazon Basin, its diagnostic charactistics are consistent in both recorded regions. Our study supports the need for many morphological characters to robustly distinguish members of Potamotrygoninae considering their extremely variable dorsal disc color pattern.
 

SOARES, K.D.A. & DE CARVALHO, M.R. & SCHWINGEL, P.R. & GADIG, O.B.F. (2019): A New Species of Parmaturus (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from Brazil, Southwestern Atlantic. Copeia, 107 (2): 314-322

New species: Parmaturus angelae

Abstract: A new Southwestern Atlantic species of Parmaturus, P. angelae, new species, is described from two specimens captured off Brazil. It is distinguished from congeners by the following characters: origin of the first dorsal fin anterior to pelvic-fin origin, presence of well-developed upper and lower caudal crests of denticles, dorsal fins subequal, lateral denticles teardrop-shaped and lacking lateral cusplets, denticles evenly spaced, proportional dimensions, and vertebral counts. Parmaturus angelae, new species, is the second species of the genus reported from the Atlantic Ocean and only the third species outside of the Indo-West Pacific region. Parmaturus remains rather poorly defined as only two species have been studied anatomically in any detail.

STUMPF, S. & SCHEER, U. & KRIWET, J. (2019): A new genus and species of extinct ground shark, †Diprosopovenator hilperti, gen. et sp. nov. (Carcharhiniformes, †Pseudoscyliorhinidae, fam. nov.), from the Upper Cretaceous of Germany. Journal of Vertebrate Paleontology, in press

New species: Diprosopovenator hilperti

Abstract: We describe a new genus and species of extinct ground shark, †Diprosopovenator hilperti, gen. et sp. nov. (Elasmobranchii, Carcharhiniformes), based on a single incomplete skeleton with dentition recovered from basinal marine late Cenomanian (Metoicoceras geslinianum ammonite zone) organic-rich deposits of northern Germany. The new carcharhiniform is characterized by a unique combination of dental morphologies, indicating close architectural resemblance to the family Scyliorhinidae (catsharks). However, the very distinct tooth root morphology readily separates the new taxon from all other scyliorhinids. The extinct Cretaceous carcharhiniform †Pseudoscyliorhinus (represented by †Ps. schwarzhansi and †Ps. reussi) shares tooth root morphologies and vascularization patterns with †Diprosopovenator, gen. nov. We hypothesize that these two sharks form part of an extinct group of carcharhiniforms characterized by a distinct root morphology (viz., low hemiaulacorhize roots with very flat and strongly flared basal faces protruding below the crown labially and mesiodistally and with a well-developed central labiobasal notch). Consequently, we propose a new family of Late Cretaceous carcharhiniforms, †Pseudoscyliorhinidae, fam. nov., to include the new taxon, as well as †Pseudoscyliorhinus. †Pseudoscyliorhinidae, fam. nov., shows a wide European distribution during the Late Cretaceous, ranging from the early Cenomanian to the late Campanian. The longevity of Scyliorhinidae, with a fossil record extending back into the Middle Jurassic, however, remains ambiguous and unresolved; therefore, it may be best to regard the assignment of fossil taxa to Scyliorhinidae as currently uncertain pending further taxonomic work.

SIVERSSON, M. & COOK, T.D. & RYAN, H.E. & WATKINS, D.K. & TATARNIC, N.J. & DOWNES, P.J. & NEWBREY, M.G. (2019):Anacoracid sharks and calcareous nannofossil stratigraphy of the mid-Cretaceous "upper' Gearle Siltstone and Haycock Marl in the lower Murchison River area, Western Australia. Alcheringa, 43 (1): 85-113

New species: Squalicorax acutus, Squalicorax bazzii, Squalicorax mutabilis

Abstract: Extensive bulk sampling over the past 20 years and greatly improved stratigraphic control permitted a meaningful revision of previously described anacoracid sharks from the ‘upper’ Gearle Siltstone and lower Haycock Marl in the lower Murchison River area, Western Australia. Isolated teeth of anacoracids are rare in the lower three (Beds 1–3) of four stratigraphic units of the ‘upper’ Gearle Siltstone but relatively common in the uppermost layer (Bed 4) and in the lower part of the overlying Haycock Marl. On the basis of calcareous nannofossils, Beds 1 and 2 of the ‘upper’ Gearle Siltstone can be placed in the uppermost upper Albian calcareous nannofossil Subzone CC9b whereas Bed 3 can be referred to the lowermost Cenomanian CC9c Subzone. Bed 1 yielded fragments of strongly serrated anacoracid teeth as well as a single, smooth-edged tooth. The samples from Beds 2 and 3 contained a few small fragments of serrated anacoracid teeth. Bed 4 is barren of calcareous nannofossils but the presence of a dentally advanced tooth of the cosmopolitan lamniform genus Cretoxyrhina in combination with the age of the overlying Haycock Marl indicate deposition within the younger half of the Cenomanian. The unit produced teeth of two anacoracids; Squalicorax acutus sp. nov. and S. bazzii sp. nov. The basal, laminated part of the Haycock Marl is placed in the uppermost upper Cenomanian part of CC10b. It yielded Squalicorax mutabilis sp. nov. and S. aff. S. bernardezi. Exceptionally well-preserved teeth of the former species span a 5:1 size ratio range for teeth of comparable jaw position. The teeth reveal strong ontogenetic heterodonty with a large increase in the relative size of the main cusp with age and the transition from a vertical distal heel of the crown in very young juveniles to a sub-horizontal, well demarcated heel in ‘adult’ teeth. An isolated phosphatic lens in the lower part of the Haycock Marl produced calcareous nannofossils indicative of the CC10b SubZone, most likely the lowermost lower Turonian part. It contains teeth of Squalicorax mutabilis sp. nov., S. aff. S. bernardezi, and S. sp. C.

BLANCO, A. (2019): Igdabatis marmii sp. nov. (Myliobatiformes) from the lower Maastrichtian (Upper Cretaceous) of north-eastern Spain: an Ibero-Armorican origin for a Gondwanan batoid. Journal of Systematic Palaeontology, 17 (10): 865-879

New species: Igdabatis marmii

Abstract: Microvertebrate fossil assemblages (chondrichthyans, osteichthyans, lissamphibians and squamates) from the Campanian and Maastrichtian of south-western Europe include taxa with very different palaeobiogeographical affinities. However, most of these biogeographical histories remain unclear. As inhabitants of shallow marine waters, batoids are considered good palaeobiogeographical indicators that could reveal connections between continental platforms. Igdabatis is a stingray (Myliobatiformes) with an abundant Gondwanan fossil record, whereas its occurrence in the Ibero-Armorican landmass is intriguing. In this paper, a new species of Igdabatis – Igdabatis marmii sp. nov. – is reported from the lower Maastrichtian of Spain. Based on this new record, the phylogenetic relationships of Myliobatiformes are assessed, including Igdabatis taxa for first time. In addition, three new morphological characters are proposed based on the diagnoses of the different species and added to the dataset. The palaeobiogeographical events that these stingrays underwent during their speciation were explored through a Statistical Dispersal-Vicariance Analysis (S-DIVA) performed in RASP 2.1. The phylogenetic analysis suggests a highly nested position within Myliobatidae for the genus Igdabatis; and the new species was recovered as the most basal taxon in the clade. The S-DIVA results point to an Ibero-Armorican ancestral area for Igdabatis, from where its species diverged by a combination of vicariant and dispersal events. Both phylogenetic and palaeobiogeographical analyses were congruent with occurrences in the fossil record. Results and fossil evidence allow the proposal of a dispersal route between European and Gondwanan landmasses for these stingrays. The dispersal of Igdabatis between Ibero-Armorica and India during the Late Cretaceous was promoted by the proximity of the European and African continental platforms and then by the Kohistan-Ladakh island arc.

MARRAMA, G. & SCHULTZ, O. & KRIWET, J. (2019): A new Miocene skate from the Central Paratethys (Upper Austria): the first unambiguous skeletal record for the Rajiformes (Chondrichthyes: Batomorphii). Journal of Systematic Palaeontology, 17 (10): 937-960

New genus: Ostarriraja

New species: Ostarriraja parva

Abstract: A new fossil skate, Ostarriraja parva gen. et sp. nov., represented by a single partial articulated skeleton collected from the early Miocene fish-bearing strata of Upper Austria, is described here in detail. This taxon exhibits a unique combination of skeletal and dental features (e.g. nasal capsules broad and oval; presence of pectoral arch; compound radial articulated with single radial segments in serial fashion; separated pelvic girdle condyles; reduced catenated calcification of radials; about 86 pectoral radials; 20–21 pelvic-fin radials; 65–70 predorsal vertebrae) that clearly support its assignment to a new genus of the order Rajiformes, and the phylogenetic analyses reveal its basal position within the group. The comparison between Ostarriraja and the holomorphic batoids from Late Cretaceous of Lebanon traditionally aligned with skates concurs to suggest that this Neogene occurrence represents unquestionably the first known skeletal record for the group. The morphological and phylogenetic affinities of Ostarriraja with the living skates suggest a close association of this taxon with the temperate-cold water environments hypothesized for the Central Paratethys during the early Miocene.

MOGHADAM, F.E. & HASELI, M. (2019): Orygmatobothrium persiense n. sp. (Cestoda: Phyllobothriidea) from the Arabian Smooth-Hound Shark Mustelus mosis (Triakidae) in the Persian Gulf. Acta Parasitologica, in press

New species: Orygmatobothrium persiense

Abstract: A new species of Orygmatobothrium Diesing, 1863 was discovered from Mustelus mosisHemprich et Ehrenberg in the north-eastern Persian Gulf. Orygmatobothrium persiense n. sp. is the fourth valid species of its genus and differs from its congeners by the number of the proglottids. In addition, the testes distributed in 3–4 rows deep in cross sections, the length of the cephalic peduncle, and a conspicuous bothridial cleft above the apical sucker distinguish the new species, respectively, from O. juani, O. musteli, and O. schmittii. This is the first time that a species of Orygmatobothrium is described and reported outside the Atlantic Ocean.

EUDY, E. & CAIRA, J.N. & JENSEN, K. (2019): A New Species of Pentaloculum (Cestoda: "Tetraphyllidea") from the Taiwan Saddled Carpetshark, Cirrhoscyllium formosanum (Orectolobiformes: Parascylliidae). Journal of Parasitology, 105 (2): 303-312

New species: Pentaloculum hoi

Abstract: Collection of cestodes from the Taiwan saddled carpetshark, Cirrhoscyllium formosanum, for the first time led to the discovery of Pentaloculum hoi n. sp. This species provided important insights into the identity of the heretofore monotypic Pentaloculum-known previously only from the blind electric ray, Typhlonarke aysoni, in New Zealand. The new species differs from Pentaloculum macrocephalum in testis number, vitelline follicle and cirrus sac configuration, and in that it is hyperapolytic rather than euapolytic. Maximum-likelihood analysis of sequence data generated for the D1-D3 region of the 28S rDNA gene not only confirmed this generic placement but also confirmed the close affinities between both species of Pentaloculum and specimens previously referred to in the literature as new genus 7 n. sp. 1. Examination of limited material of the latter, including that of a second specimen from which partial 28S rDNA sequence data were generated here, led to the realization that new genus 7 n. sp. 1 represents an undescribed species of Pentaloculum, referred to here as Pentaloculum n. sp. 2. All 3 species share bothridia divided into 1 anterior and 2 consecutive pairs of loculi. Given that Pentaloculum n. sp. 2 parasitizes a member of the second and only other genus of parascylliid sharks (i.e., Parascyllium), we predict that the 4 other species of Parascyllium and the 2 other species of Cirrhoscyllium are likely to host other species of Pentaloculum. The factors that might account for the eclectic host associations of Pentaloculum, which include a torpediniform ray and 2 species of orectilobiform sharks, are currently unclear. The compilation of diet data for these elasmobranchs and determination of the final intermediate hosts for these cestodes would be interesting avenues of further investigation given that cestodes are trophically transmitted between their intermediate and definitive hosts. The phylogenetic affinities of Pentaloculum among elasmobranch cestodes remain unresolved.

COLEMAN, G.M. & BEVERIDGE, I. & CAMPBELL, R.A. (2019): New genera, species and records of rhinebothriidean cestodes (Platyhelminthes) parasitic in Australian stingrays (Elasmobranchii: Batoidea). Systematic Parasitology, 96 (4-5): 347-368

New genus: Ruptobothrium, Mixobothrium

New species: Ruptobothrium louiseuzeti, Mixobothrium queenslandense, Rhabdotobothrium meridionale, Rhabdotobothrium anoxypristidis, Scalithrium australiense

Abstract: Collections of rhinebothriidean cestodes (Platyhelminthes) from Australian batoid elasmobranchs revealed the presence of a number of new genera and species. Ruptobothrium louiseuzeti n. g., n sp. is described from the reticulate whipray, Himantura australis Last, Naylor & Manjaji-Matsumoto, from off the Northern Territory and Mixobothrium queenslandense n. g., n sp. is described from the green sawfish, Pristis zijsron Bleeker, from off north-eastern Queensland. Two new species of Rhabdotobothrium Euzet, 1953 are described: Rhabdotobothrium meridionale n. sp. from the southern eagle ray Myliobatis tenuicaudatus Hector from off South Australia and Rhabdotobothrium anoxypristidis n. sp. from the narrow sawfish, Anoxypristis cuspidatus(Latham) from off north Western Australia. A new species of Scalithrium Healy & Reyda, 2016, Scalithrium australiense n. sp., is described from the reticulate whipray, Himantura australisLast, Naylor & Manjaji-Matsumoto, from off northern Western Australia. Scalithrium smitii(Shinde, Deshmukh & Jadhav, 1981) n. comb. is reported from Australian waters for the first time in the black spotted stingray Maculabatis toshi (Whitley) from off northern Western Australia. New host and geographical records are provided for Stillabothrium jeanfortiae Forti, Aprill & Reyda, 2016 from the brown whipray Maculobatis toshi (Whitley) and the black-spotted whipray, Maculabatis cf. astra (Last, Manjaji-Matsumoto & Pogonoski) from Moreton Bay in southern Queensland.

PLEASE send your new papers to juergen.pollerspoeck@shark-references.com or nicolas.straube@shark-references.com   

Latest Research Articles

ABREO, N.A.S. & BLATCHLEY, D. & SUPERIO, M.D. (2019) Stranded whale shark (Rhincodon typus) reveals vulnerability of filter-feeding elasmobranchs to marine litter in the Philippines. Marine Pollution Bulletin, 141: 79-83 http://dx.doi.org/10.1016/j.marpolbul.2019.02.030
AJEESHKUMAR, K.K. & VISHNU, K.V. & NAVANEETHAN, R. & RAJ, K. & REMYAKUMARI, K.R. & SWAMINATHAN, T.R. & SUSEELA, M. & ASHA, K.K. & SREEKANTH, G.P. (2019) Proteoglycans isolated from the bramble shark cartilage show potential anti-osteoarthritic properties. Inflammopharmacology, 27 (1): 175-187 http://dx.doi.org/10.1007/s10787-018-00554-5
ANDRZEJACZEK, S. & GLEISS, A.C. & LEAR, K.O. & PATTIARATCHI, C.B. & CHAPPLE, T.K. & MEEKAN, M.G. (2019) Biologging Tags Reveal Links Between Fine-Scale Horizontal and Vertical Movement Behaviors in Tiger Sharks (Galeocerdo cuvier). Frontiers in Marine Science, 6: Unsp 229 http://dx.doi.org/10.3389/fmars.2019.00229
BEZERRA, M.F. & LACERDA, L.D. & LAI, C.T. (2019) Trace metals and persistent organic pollutants contamination in batoids (Chondrichthyes: Batoidea): A systematic review. Environmental Pollution, 248: 684-695 http://dx.doi.org/10.1016/j.envpol.2019.02.070
BOUYOUCOS, I.A. & SIMPFENDORFER, C.A. & RUMMER, J.L. (2019) Estimating oxygen uptake rates to understand stress in sharks and rays. Reviews in Fish Biology and Fisheries, 29 (2): 297–311 http://dx.doi.org/10.1007/s11160-019-09553-3
BRADLEY, D. & MAYORGA, J. & MCCAULEY, D.J. & CABRAL, R.B. & DOUGLAS, P. & GAINES, S.D. (2019) Leveraging satellite technology to create true shark sanctuaries. Conservation Letters, 12 (2): UNSP e12610 http://dx.doi.org/10.1111/conl.12610
BRUCE, B.D. & HARASTI, D. & LEE, K. & GALLEN, C. & BRADFORD, R. (2019) Broad-scale movements of juvenile white sharks Carcharodon carcharias in eastern Australia from acoustic and satellite telemetry. Marine Ecology Progress Series, 619: 1-15    http://dx.doi.org/10.3354/meps12969
BUDDLE, A.L. & VAN DYKE, J.U. & THOMPSON, M.B. & SIMPFENDORFER, C.A. & WHITTINGTON, C.M. (2019) Evolution of placentotrophy: using viviparous sharks as a model to understand vertebrate placental evolution. Marine and Freshwater Research, 70 (7): 908-924 http://dx.doi.org/10.1071/MF18076
BURGOS-VÁZQUEZ, M.I. & CRUZ-ESCALONA, V.H. & GONZÁLEZ-ACOSTA, A.F. (2019) Biological Notes and Distribution of Tetronarce californica (Ayres 1855) (Elasmobranchii: Torpediniformes: Torpedinidae) from the Gulf of California, Mexico. Thalassas, in press http://dx.doi.org/10.1007/s41208-019-00136-4
BURGOS-VÁZQUEZ, M.I. & GALVÁN‐MAGAÑA, F. & CARRERA‐FERNÁNDEZ, M. & OCHOA‐BÁEZ, R.I. & ODDONE, M.C. (2019) Reproductive characteristics and reproductive tract anatomy of the California butterfly ray Gymnura marmorata (Myliobatiformes: Gymnuridae). Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.13999
CABANILLAS-TORPOCO, M. & FORSBERG, K. & SICCHA-RAMIREZ, R. & CISNEROS, P. & LUQUE, C. & PURIZACA, W. & ASMAT, R. & AMPUERO, C. & RUBIN, R. & VERA, M. (2019) First description of a giant manta ray fetus Mobula birostris (Walbaum 1792) from Tumbes, Peru (Southeast Pacific). Zootaxa, 4603 (2): 397-400 http://dx.doi.org/10.11646/zootaxa.4603.2.12
CULLEN, J.A. & MARSHALL, C.D. (2019) Do sharks exhibit heterodonty by tooth position and over ontogeny? A comparison using elliptic Fourier analysis. Journal of Morphology, 280 (5): 687-700 http://dx.doi.org/10.1002/jmor.20975
CURNICK, D.J. & CARLISLE, A.B. & GOLLOCK, M.J. & SCHALLERT, R.J. & HUSSEY, N.E. (2019) Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory. Journal of Fish Biology, 94 (4): 680-685 http://dx.doi.org/10.1111/jfb.13938
DA SILVA, J.P.C.B. & LOBODA, T.S. (2019) Potamotrygon marquesi, a new species of neotropical freshwater stingray (Potamotrygonidae) from the Brazilian Amazon Basin. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.14050
DAY, J. & CLARK, J.A. & WILLIAMSON, J.E. & BROWN, C. & GILLINGS, M. (2019) Population genetic analyses reveal female reproductive philopatry in the oviparous Port Jackson shark. Marine and Freshwater Research, 70 (7): 986-994 http://dx.doi.org/10.1071/MF18255
DOLGANOV, V.N. (2019) On the Little-Known Sharks Etmopterus villosus (Etmopteridae) and Scymnodalatias sherwoodi (Somniosidae) from the Pacific Ocean. Journal of Ichthyology, 59 (2): 275–279 http://dx.doi.org/10.1134/S003294521902005X
DOS SANTOS, J.M. & DOS SANTOS, J.C. & MARQUES, E.E. & DE ARAUJO, G.C. & SEIBERT, C.S. & LOPES-FERREIRA, M. & CARLA, L. (2019) Stingray (Potamotrygon rex) maturity is associated with inflammatory capacity of the venom. Toxicon, 163: 74-83 http://dx.doi.org/10.1016/j.toxicon.2019.03.013
DRYMON, J.M. & FELDHEIM, K. & FOURNIER, A.M.V. & SEUBERT, E.A. & JEFFERSON, A.E. & KROETZ, A.M. & POWERS, S.P. (2019) Tiger sharks eat songbirds: scavenging a windfall of nutrients from the sky. Ecology, in press: e02728 http://dx.doi.org/10.1002/ecy.2728
DUARTE-NETO, P. & RODRIGUES, J. & LESSA, R. (2019) Shape analysis of shark jaws as a tool to identify species involved in incidents with humans. Journal of Forensic and Legal Medicine, 64: 23-27 http://dx.doi.org/10.1016/j.jflm.2019.03.008
DUCATEZ, S. (2019) Which sharks attract research? Analyses of the distribution of research effort in sharks reveal significant non-random knowledge biases. Reviews in Fish Biology and Fisheries, 29 (2): 355-367 http://dx.doi.org/10.1007/s11160-019-09556-0
DUCHATELET, L. & DELROISSE, J. & FLAMMANG, P. & MAHILLON, J. & MALLEFET, J. (2019) Etmopterus spinax, the velvet belly lanternshark, does not use bacterial luminescence. Acta Histochemica, 121 (4): 516-521 http://dx.doi.org/10.1016/j.acthis.2019.04.010
DZYUBA, V. & SAMPELS, S. & NINHAUS-SILVEIRA, A. & KAHANEC, M. & VERISSIMO-SILVEIRA, R. & RODINA, M. & COSSON, J. & BORYSHPOLETS, S. & SELINGER, M. & STERBA, J. & DZYUBA, B. (2019) Sperm motility and lipid composition in internally fertilizing ocellate river stingray Potamotrygon motoro. Theriogenology, 130: 26-35 http://dx.doi.org/10.1016/j.theriogenology.2019.02.029
EDWARDS, J.E. & PRATT, J. & TRESS, N. & HUSSEY, N.E. (2019) Thinking deeper: Uncovering the mysteries of animal movement in the deep sea. Deep-Sea Research Part I-Oceanographic Research Papers, 146: 24-43 http://dx.doi.org/10.1016/j.dsr.2019.02.006
EHEMANN, N.R. & GONZÁLEZ‐GONZÁLEZ, L.D.V. & TAGLIAFICO, A. & WEIGMANN, S. (2019) Updated taxonomic list and conservation status of chondrichthyans from the exclusive economic zone of Venezuela, with first generic and specific records. Journal of Fish Biology, in press http://dx.doi.org/10.1111/jfb.14061  
FARRAG, M.M.S. & EL-NAGGAR, H.A. & ABOU-MAHMOUD, M.M.A. & ALABSSAWY, A.N. & AHMED, H.O. & ABO-TALEB, H.A. & KOSTAS, K. (2019) Marine biodiversity patterns off Alexandria area, southeastern Mediterranean Sea, Egypt. Environmental Monitoring and Assessment, 191 (6): 367 http://dx.doi.org/10.1007/s10661-019-7471-7  
FELIX-LOPEZ, D.G. & BOLANO-MARTINEZ, N. & DIAZ-JAIMES, P. & ONATE-GONZALEZ, E.C. & RAMIREZ-PEREZ, J.S. & GARCIA-RODRIGUEZ, E. & CORRO-ESPINOSA, D. & OSUNA-SOTO, J.E. & SAAVEDRA-SOTELO, N.C. (2019) Possible female philopatry of the smooth hammerhead shark Sphyrna zygaena revealed by genetic structure patterns. Journal of Fish Biology, 94 (4): 671-679 http://dx.doi.org/10.1111/jfb.13949  
FINUCCI, B. & DUNN, M.R. & JONES, E.G. (2019) Corrigendum: Aggregations and associations in deep-sea chondrichthyans (vol 75, pg 1613, 2018). ICES  Journal of Marine Science, 76 (2): 466 http://dx.doi.org/10.1093/icesjms/fsz008  
FRICKE, R. & ALLEN, G.R. & AMON, D. & ANDREFOUET, S. & CHEN, W.J. & KINCH, J. & MANA, R. & RUSSELL, B.C. & TULLY, D. & WHITE, W.T. (2019) Checklist of the marine and estuarine fishes of New Ireland Province, Papua New Guinea, western Pacific Ocean, with 810 new records. Zootaxa, 4588 (1): 1-360 http://dx.doi.org/10.11646/zootaxa.4588.1.1 
FUJINAMI, Y. & SEMBA, Y. & TANAKA, SHO (2019) Age determination and growth of the blue shark (Prionace glauca) in the western North Pacific Ocean. Fishery Bulletin, 117 (1-2):107-120 http://dx.doi.org/10.7755/FB.117.1-2.12  
GERMANOV, E.S. & BEJDER, L. & CHABANNE, D.B.H. & DHARMADI, D. & HENDRAWAN, I.G. & MARSHALL, A.D. & PIERCE, S.J. & VAN KEULEN, M. & LONERAGAN, N.R. (2019) Contrasting Habitat Use and Population Dynamics of Reef Manta Rays Within the Nusa Penida Marine Protected Area, Indonesia. Frontiers in Marine Science, 6: Unsp 215 http://dx.doi.org/10.3389/fmars.2019.00215  
GREEN, M.E. & APPLEYARD, S.A. & WHITE, W. & TRACEY, S. & DEVLOO-DELVA, F. & OVENDEN, J.R. (2019) Novel multimarker comparisons address the genetic population structure of silvertip sharks (Carcharhinus albimarginatus). Marine and Freshwater Research, 70 (7): 1007-1019 http://dx.doi.org/10.1071/MF18296  
GRIFFING, D. & CHRISTIANSEN, J. & HOLLANDER, J. & CARPENTER, T. & LARSON, S. (2019) Decrease in Sightings of Sixgill Sharks, Hexanchus griseus, in Elliott Bay, Seattle, WA, United States, a Comparison Between 2003-2005 and 2008-2015. Frontiers in Marine Science, 6: Unsp 189 http://dx.doi.org/10.3389/fmars.2019.00189  
HARRY, A.V. & BUTCHER, P.A. & MACBETH, W.G. & MORGAN, J.A.T. & TAYLOR, S.M. & GERAGHTY, P.T. (2019) Life history of the common blacktip shark, Carcharhinus limbatus, from central eastern Australia and comparative demography of a cryptic shark complex. Marine and Freshwater Research, 70 (6): 834-848 http://dx.doi.org/10.1071/MF18141  
HEDRICK, B.P. & ANTALEK-SCHRAG, P. & CONITH, A.J. & NATANSON, L.J. & BRENNAN, P.L.R. (2019) Variability and asymmetry in the shape of the spiny dogfish vagina revealed by 2D and 3D geometric morphometrics. Journal of Zoology, 308 (1): 16-27 http://dx.doi.org/10.1111/jzo.12653  
HEUPEL, M.R. & KANNO, S. & MARTINS, A.P.B. & SIMPFENDORFER, C.A. (2019) Advances in understanding the roles and benefits of nursery areas for elasmobranch populations. Marine and Freshwater Research, 70 (7): 897-907 http://dx.doi.org/10.1071/MF18081  
HEUPEL, M.R. & MUNROE, S.E.M. & LEDEE, E.J.I. & CHIN, A. & SIMPFENDORFER, C.A. (2019) Interspecific interactions, movement patterns and habitat use in a diverse coastal shark assemblage. Marine Biology, 166 (6): 68 http://dx.doi.org/10.1007/s00227-019-3511-7  
JEWELL, O.J.D. & GLEISS, A.C. & JORGENSEN, S.J. & ANDRZEJACZEK, S. & MOXLEY, J.H. & BEATTY, S.J. & WIKELSKI, M. & BLOCK, B.A. & CHAPPLE, T.K. (2019) Cryptic habitat use of white sharks in kelp forest revealed by animal-borne video. Biology Letters, 15 (4): 20190085 http://dx.doi.org/10.1098/rsbl.2019.0085  
JOHANSON, Z. & MARTIN, K. & FRASER, G. & JAMES, K. (2019) The Synarcual of the Little Skate, Leucoraja erinacea: Novel Development Among the Vertebrates. Frontiers in Ecology and Evolution, 7: 12 http://dx.doi.org/10.3389/fevo.2019.00012  
JUSTE-POINAPEN, N.M.S. & YANG, L. & FERREIRA, M. & POINAPEN, J. & RICO, C. (2019) Community profiling of the intestinal microbial community of juvenile Hammerhead Sharks (Sphyrna lewini) from the Rewa Delta, Fiji. Scientific Reports, 9: 7182 http://dx.doi.org/10.1038/s41598-019-43522-x  
KARNAD, D. & SUTARIA, D. & JABADO, R.W. (2019) Local drivers of declining shark fisheries in India. Ambio, in press http://dx.doi.org/10.1007/s13280-019-01203-z  
KLEIN, J.D. & BESTER-VAN DER MERWE, A.E. & DICKEN, M.L. & EMAMI-KHOYI, A. & MMONWA, K.L. & TESKE, P.R. (2019) Genomic resources for the spotted ragged-tooth shark Carcharias taurus. African Journal of Marine Science, 41 (1): 115-118 http://dx.doi.org/10.2989/1814232x.2019.1576541  
KUNDU, S. & TYAGI, K. & MOHANTY, S.R. & ROY, S. & MOHAPATRA, A. & KUMAR, V. & CHANDRA, K. (2019) DNA barcoding inferred maternal philopatric affinity of ocean maskray (Neotrygon indica) in the Bay of Bengal. Mitochondrial DNA Part B, 4 (1): 1924-1929 http://dx.doi.org/10.1080/23802359.2019.1616622  
LATYSHEV, N.A. & ERMAKOVA, S.P. & ERMOLENKO, E.V. & IMBS, A.B. & KASYANOV, S.P. & SULTANOV, R.M. (2019) 1-O-alkylglycerols from thehepatopancreas of the crab Paralithodes camtschaticus, liver of thesquid Berryteuthis magister, and liver of the skate Bathyraja parmifera, and their anticancer activity on human melanoma cells. Journal of Food Biochemistry, 43 (5): e12828 http://dx.doi.org/10.1111/jfbc.12828  
LYONS, K. & WYNNE-EDWARDS, K.E. (2019) Legacy environmental polychlorinated biphenyl contamination attenuates the acute stress response in a cartilaginous fish, the Round Stingray. Stress-the International Journal on the Biology of Stress, 22 (3): 395-402 http://dx.doi.org/10.1080/10253890.2019.1570125  
MANISHIN, K.A. & GOLDMAN, K.J. & SHORT, M. & CUNNINGHAM, C.J. & WESTLEY, P.A.H. & SEITZ, A.C. (2019) Prey consumption estimates for salmon sharks. Marine and Freshwater Research, 70 (6): 824-833 http://dx.doi.org/10.1071/MF18345  
MARTINS, M.F. & GADIG, O.B.F. (2019) Reproductive biology of the Brazilian blind electric ray Benthobatis kreffti (Chondrichthyes: Narcinidae). Neotropical Ichthyology, 17 (1): e180093 http://dx.doi.org/10.1590/1982-0224-20180093    
MATSUMOTO, R. & MATSUMOTO, Y. & UEDA, K. & SUZUKI, M. & ASAHINA, K. & SATO, K. (2019) Sexual maturation in a male whale shark (Rhincodon typus) based on observations made over 20 years of captivity. Fishery Bulletin, 117 (1-2): 78-86 http://dx.doi.org/10.7755/FB.117.1-2.9  
MILLS, G. (2019) Old photos offer hope for the future of the elusive angel shark. Veterinary Record, 184 (7): 208-209 http://dx.doi.org/10.1136/vr.l720  
MISAWA, R. & NARIMATSU, Y. & ENDO, H. & KAI, Y. (2019) Population structure of the ocellate spot skate (Okamejei kenojei) inferred from variations in mitochondrial DNA (mtDNA) sequences and from morphological characters of regional populations. Fishery Bulletin, 117 (1-2): 24-36 http://dx.doi.org/10.7755/FB.117.1.4  
MITCHELL, J.D. & MCLEAN, D.L. & COLLIN, S.P. & LANGLOIS, T.J. (2019) Shark depredation and behavioural interactions with fishing gear in a recreational fishery in Western Australia. Marine Ecology Progress Series, 616:107-122 http://dx.doi.org/10.3354/meps12954  
MITCHELL, M.G. & CIAMPAGLIO, C.N. & JACQUEMIN, S.J. (2018) Convergent evolution in tooth morphology of filter-feeding lamniform sharks. Southeastern Geology, 53 (2): 63-80    
MIYAZAKI, Y. & TERAMURA, A. & SENOU, H. (2019) Preliminary report on bycatch fish species collected from the Tokyo Submarine Canyon, Japan. Zookeys, 843: 117-128 http://dx.doi.org/10.3897/zookeys.843.32410  
MUKTHA, M. & AKHILESH, K.Y. & SUKUMARAN, S. & KIZHAKUDAN, S.J. (2019) A new report confirming the presence of bennett’s stingray, Hemitrygon bennettii (Elasmobranchii: Myliobatiformes: Dasyatidae), from the Western Bay of Bengal. Acta Ichthyologica et Piscatoria, 49 (1): 101-108 http://dx.doi.org/10.3750/aiep/02474  
MUÑOZ, R.C. & BURTON, M.L. (2019) Comparison of video and diver observations of sharks from a fishery-independent trap-video survey off east-central Florida, including utility of an alternative method of video analysis. Fishery Bulletin, 117 (1-2): 87-96 http://dx.doi.org/10.7755/FB.117.1-2.10  
NATANSON, L.J. & DEACY, B.M. (2019) Using oxytetracycline validation for confirmation of changes in vertebral band-pair deposition rates with ontogeny in sandbar sharks (Carcharhinus plumbeus) in the western North Atlantic Ocean. Fishery Bulletin, 117 (1-2): 50-58 http://dx.doi.org/10.7755/FB.117.1.6  
NATANSON, L.J. & DEACY, B.M. & JOYCE, W. & SULIKOWSK, J. (2019) Presence of a resting population of female porbeagles (Lamna nasus), indicating a biennial reproductive cycle, in the western North Atlantic Ocean. Fishery Bulletin, 117 (1-2): 70-77 http://dx.doi.org/10.7755/FB.117.1-2.8  
PEGADO, M.R. & SANTOS, C. & COUTO, A. & PINTO, E. & LOPES, A.R. & DINIZ, M. & ROSA, R. (2018) Reduced impact of ocean acidification on growth and swimming performance of newly hatched tropical sharks (Chiloscyllium plagiosum). Marine and Freshwater Behaviour and Physiology, 51 (6): 347-357 http://dx.doi.org/10.1080/10236244.2019.1590120  
RAKSHIT, N. & BHAT, M.S. & MUKHERJEE, D. & RAY, S. (2019) First record of Mesozoic scroll coprolites: classification, characteristics, elemental composition and probable producers. Palaeontology, 62 (3): 451-471 http://dx.doi.org/10.1111/pala.12409  
RAMIREZ, J.M. & VAZQUEZ-BADER, A.R. & GRACIA, A. (2019) Ichthyofaunal list of the continental slope of the southern Gulf of Mexico. Zookeys, 846: 117-132 http://dx.doi.org/10.3897/zookeys.846.31944  
ROWLEY, A.G. & DALY-ENGEL, T.S. & FITZPATRICK, J.L. (2019) Testes size increases with sperm competition risk and intensity in bony fish and sharks. Behavioral Ecology, 30 (2): 364-371 http://dx.doi.org/10.1093/beheco/ary174  
RUTLEDGE, K.M. & SUMMERS, A.P. & KOLMANN, M.A. (2019) Killing them softly: Ontogeny of jaw mechanics and stiffness in mollusk-feeding freshwater stingrays. Journal of Morphology, 280 (6): 796-808 http://dx.doi.org/10.1002/jmor.20984  
SAAD, A. & ALKUSAIRY, H. (2019) First record of Shagreen ray Leucoraja fullonica (Linnaeus, 1758) in Syrian coastal waters (eastern Mediterranean). Cahiers De Biologie Marine, 60 (3): 303-306  http://dx.doi.org/10.21411/cbm.a.32012cd2  
SANTIZ-GOMEZ, M.A. & MAZORRA-MANZANO, M.A. & RAMIREZ-GUERRA, H.E. & SCHEUREN-ACEVEDO, S.M. & NAVARRO-GARCIA, G. & PACHECO-AGUILAR, R. & RAMIREZ-SUAREZ, J.C. (2019) Effect of acid treatment on extraction yield and gel strength of gelatin from whiptail stingray (Dasyatis brevis) skin. Food Science and Biotechnology, 28 (3): 751-757  http://dx.doi.org/10.1007/s10068-018-0514-y  
SHIFFMAN, D.S. & KAUFMAN, L. & HEITHAUS, M. & HAMMERSCHLAG, N. (2019) Intraspecific differences in relative isotopic niche area and overlap of co-occurring sharks. Aquatic Ecology, 53 (2): 233-250 http://dx.doi.org/10.1007/s10452-019-09685-5  
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MISCELLANEOUS:

Baby tiger sharks eat songbirds

DNA analysis of shark barf tells scientists what kinds of birds the sharks scavenge

Date:

May 21, 2019

Source:

Field Museum

Summary:

Tiger sharks have a reputation for being the 'garbage cans of the sea' -- they'll eat just about anything, from dolphins and sea turtles to rubber tires. And in a new study, scientists just discovered that baby tiger sharks eat birds. And not seabirds like gulls or pelicans -- familiar backyard birds like sparrows, woodpeckers, and doves. In short: Baby sharks, doo doo doo doo doo doo They eat birds, doo doo doo doo doo doo