Catalog of Fishes
literature references
FishBase
IUCN Red List
GBIF
NCBI GenBank
Dipturus lamillai
Concha, Caira, Ebert & Pompert, 2019
Classification: Elasmobranchii Rajiformes Rajidae
Reference of the original description
Redescription and taxonomic status of Dipturus chilensis (Guichenot, 1848), and description of Dipturus lamillai sp. nov. (Rajiformes: Rajidae), a new species of long-snout skate from the Falkland Islands. Zootaxa, 4590(5), 501–524
Redescription and taxonomic status of Dipturus chilensis (Guichenot, 1848), and description of Dipturus lamillai sp. nov. (Rajiformes: Rajidae), a new species of long-snout skate from the Falkland Islands. Zootaxa, 4590(5), 501–524
Description :
Citation: Dipturus lamillai Concha, Caira, Ebert & Pompert, 2019: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 10/2025
Common names
raya guará, 
Warrah skate
raya guará, Warrah skate
Short Description
Diagnosis after CONCHA, CAIRA, EBERT & POMPERT, 2019 [27265]: A medium-sized species of Dipturus, to at least 107.0 cm TL (FA-7). It is distinguishable from its congeners by the following combination of characters: Dorsal surface of body medium brownish with lighter spots and reticulations ranging from simple (holotype) to complex pattern (female paratype); ocellus in center of each pectoral fin reticulated, margins not well defined. Body, dusky grey ventrally, with light patches around mouth, gills, pelvic girdle, and cloaca; area flanking rostral cartilage membranous and barely translucent; disc relatively broad with angular apices, width 75.2 (73.2; 78.9) % TL; snout elongated. Tail longer in males than in female paratype, 38.4 (37.9) % TL and 35.1% TL, respectively. Ventral head length 36.3 (35.0; 32.7) % TL; pre-orbital snout length 3.2 (3.1; 3.5) times distance between orbits; orbit diameter 0.4 (0.6; 0.4) times inter-orbital width. Dorsal surface of disc in males with scattered and thick dermal denticles over rostral cartilage; small fine dermal denticles on pre- and post-orbit; thin band of dermal denticles on anterior margins of dorsal fins and anterior margins of disc, and from tip of snout to anterior margin of alar thorn patches; thin band of dermal denticles on anterior margins of dorsal fins. In females, dorsal surface of head and anterior margins of disc with small dermal denticles; narrow patch of dermal denticles on medial-dorsal area between girdles, narrow band on anterior margins of dorsal fins. Both sexes with orbital thorns, single nuchal thorn; scapular thorns lacking; one median row of small caudal thorns; single row of lateral thorns on each side of tail, mostly at anterior part of tail in males and all along tail in female paratype; additional row of small and posteriorly directed thorns above lateral tail fold; malar and alar thorns only in adult males. Ventral sensory pores small, distinct, black-edged, not surrounded by greyish blotches, more abundant anteriorly to gill openings, scarce on abdominal area.
Diagnosis after CONCHA, CAIRA, EBERT & POMPERT, 2019 [27265]: A medium-sized species of Dipturus, to at least 107.0 cm TL (FA-7). It is distinguishable from its congeners by the following combination of characters: Dorsal surface of body medium brownish with lighter spots and reticulations ranging from simple (holotype) to complex pattern (female paratype); ocellus in center of each pectoral fin reticulated, margins not well defined. Body, dusky grey ventrally, with light patches around mouth, gills, pelvic girdle, and cloaca; area flanking rostral cartilage membranous and barely translucent; disc relatively broad with angular apices, width 75.2 (73.2; 78.9) % TL; snout elongated. Tail longer in males than in female paratype, 38.4 (37.9) % TL and 35.1% TL, respectively. Ventral head length 36.3 (35.0; 32.7) % TL; pre-orbital snout length 3.2 (3.1; 3.5) times distance between orbits; orbit diameter 0.4 (0.6; 0.4) times inter-orbital width. Dorsal surface of disc in males with scattered and thick dermal denticles over rostral cartilage; small fine dermal denticles on pre- and post-orbit; thin band of dermal denticles on anterior margins of dorsal fins and anterior margins of disc, and from tip of snout to anterior margin of alar thorn patches; thin band of dermal denticles on anterior margins of dorsal fins. In females, dorsal surface of head and anterior margins of disc with small dermal denticles; narrow patch of dermal denticles on medial-dorsal area between girdles, narrow band on anterior margins of dorsal fins. Both sexes with orbital thorns, single nuchal thorn; scapular thorns lacking; one median row of small caudal thorns; single row of lateral thorns on each side of tail, mostly at anterior part of tail in males and all along tail in female paratype; additional row of small and posteriorly directed thorns above lateral tail fold; malar and alar thorns only in adult males. Ventral sensory pores small, distinct, black-edged, not surrounded by greyish blotches, more abundant anteriorly to gill openings, scarce on abdominal area.
Distribution
slopes of the southwestern Atlantic Ocean adjacent to the Falkland Islands [27265] Source: www.gbif.org
slopes of the southwestern Atlantic Ocean adjacent to the Falkland Islands [27265] Source: www.gbif.org
Dentition
Teeth uni-cuspid, with sub-circular bases, arranged in longitudinal rows in both sexes; cusps of medial teeth long, sub-conical, bluntly pointed, posteriorly and lingually directed in both upper and lower jaws; cusps of lateral teeth oblique and almost flat; cusps of males longer and narrower than in females. [27265]
Teeth uni-cuspid, with sub-circular bases, arranged in longitudinal rows in both sexes; cusps of medial teeth long, sub-conical, bluntly pointed, posteriorly and lingually directed in both upper and lower jaws; cusps of lateral teeth oblique and almost flat; cusps of males longer and narrower than in females. [27265]
Remarks
shark-references Species-ID=15437
shark-references Species-ID=15437
Parasites (arranged by Jürgen Pollerspöck)
Myxosporea
Monogenea
Cestoda
Trematoda
Nematoda
Copepoda
Myxosporea
- Chloromyxum zearaji Cantatore, Irigoitia,Holzer, Bartosova-Sojkova, Peckova, Fiala & Timi, 2018 [31017]
Monogenea
- Acanthocotyle sp. [31017]
- Dendromonocotyle rajidicola Irigoitia, Chisholm & Timi, 2016 [31017]
- Merizocotyle euzeti Irigoitia, Cantatore, Delpiani, Incorvaia, Lanfranchi & Timi, 2014 [31017]
- Rajonchocotyle emarginata (Olsson, 1876) [31017]
Cestoda
- Acanthobothrium domingae Franzese & Ivanov, 2020 [28777] [31017] [31906]
- Echeneibothrium multiloculatum Carvajal & Dailey, 1975 [30919] [31742] [31906]
- Echeneibothrium sp. [31017]
- Echeneibothrium williamsi Carvajal & Dailey, 1975 [30919] [31742] [31906]
- Grillotia (Grillotia) patagonica Menoret & Ivanov, 2012 [31017]
- Heteronybelinia sp. [31017]
- Phyllobothrium sp. [31017]
Trematoda
- Otodistomum sp. [31017]
Nematoda
- Anisakis simplex (Rudolphi, 1809) [31017]
- Contracaecum sp. [31017]
- Phocanema cattani (George-Nascimento & Urrutia, 2000) Bao, Giulietti, Levsen & Karlsbakk, 2023 [31017]
- Piscicapillaria sp. [31017]
- Proleptus acutus Dujardin, 1845 [31017]
- Pseudanisakis argentinensis Irigoitia, Braicovich, Farber & Timi, 2017 [31017]
Copepoda
- Eudactylina parva Castro-Romero & Baeza-Kuroki, 1991 [31017]
- Schistobrachia ramosa (Krøyer, 1863) [31017]
