Pseudobatos horkelii

(Müller & Henle, 1841)


Brazilian guitarfish
Classification: Elasmobranchii Rhinopristiformes Rhinobatidae

Reference of the original description
Müller, J. & Henle, F.G.J. (1841)
Systematische Beschreibung der Plagiostomen. Berlin, Veit, pp. 1–200

Image of the original description

Rhinobatos horkelii (Müller & Henle, 1838) valid as Pseudobatos horkelii (Müller & Henle, 1838)

Synonyms / new combinations and misspellings
Rhinobatos horkeli, Rhinobatos horkelii, Rhinobatos horkelli, Rhinobatus horkeli, Rhinobatus horkelii, Rhinobatus (Rhinobatus) horkelii

Types
Pseudobatos horkelii

Rhinobatos horkelii
Syntype: ZMB: 4557 ZMB: 7850


Description :


Citation: Pseudobatos horkelii (Müller & Henle, 1841): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 03/2024

Please send your images of "Pseudobatos horkelii" to info@shark-references.com

Pseudobatos horkelii (Müller & Henle, 1838), female, 138 cm TL © Mariana Martins, Universidade Estadual Paulista, São Vicente, Brazil
Common names
deu \(T\) Geigenrochen, spa Guitarra, eng Brazilian guitarfish, por Cação-viola, por Raia-viola, por Viola

Short Description
Nostrils are longer, crown is flat transversely or even slightly convex, tubercles in median row are larger, thorn like, numerous. Origin of first dorsal is posterior to the tips of pelvic fins, equal to the base of first dorsal. Upper surface uniform olive gray or chocolate brown, without pale or dark markings. Snout with an oval sooty patch [199].

Distribution
Western South Atlantic: From Rio de Janeiro to Argentina. Source: www.gbif.org

Human uses
fisheries: commercial

Biology
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures [733]. Found from the coast line to the continental edge. Feeds on crustaceans, cephalopods, polychaetes and small fishes.

Size / Weight / Age
138 cm TL (male/unsexed; [19579]); Total length–disc width relationships were DW = 2.36 + 0.32TL (r2 = .953; n = 70) and DW = 27.27 + 0.27TL (r2 = .991; n = 71) for males and females (database: 71 males and 72 females), size at maturity was 70.2 cm TL for males [26017]

Habitat
demersal; oceanodromous [17660]; marine; depth range 1 - 100 m [19579]

Remarks
shark-references Species-ID=14580;

Parasites (arranged by Jürgen Pollerspöck)
Myxosporea
Cestoda
  • Caulobothrium pieroi Menoret & Ivanov, 2023 [32533]
  • Rhinebothrium quequense Menoret & Ivanov, 2023 [32533]