Zearaja brevicaudata

(MARINI, 1933)


Yellownose skate
Classification: Elasmobranchii Rajiformes Rajidae

Reference of the original description
MARINI, T.L. (1933)
Rectificando errores ictiólogicos. Physis, 11 (39): 328–332

Synonyms / new combinations and misspellings
Dipturus brevicaudata, Raia brevicaudata, Raja brevicaudata

Types
Zearaja brevicaudata

Raia brevicaudata
Holotype: MACN: Ict-569;


Description :


Citation: Zearaja brevicaudata (MARINI, 1933): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 03/2021

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Zearaja brevicaudata (MARINI, 1933) mature male © Valeria Gabbanelli, Instituto de Investigaciones Marinas y Costeras (IIMyC)-CONICET
Common names
spa Raya hocicuda de cola corta, eng short tail Yellownose skate

Short Description
Diagnose after GABBANELLI, DE ASTARLOA, GONZALEZ-CASTRO, VAZQUEZ & MABRAGANA, 2018 [26826]: Zearaja brevicaudata is a relatively large species of skate with a rhombic-shaped disc characterized by the combi-nation of the following characters: relatively large snout (1.7–2.9 times tail length), short tail (2.1–2.7 times in total length), and short distance between the first gill openings (3.42–4.19 times indirect disc length). Even though these relationships overlap with those of Z. chilensis, these features differ diagnostically among specimens of similar size (Fig. 7). The dermal denticles are mainly restricted to the rostral area, both in dorsal and ventral surfaces. Denticles are more conspicuous in adults, and can be absent or in less number in neonates and juveniles. Three to five rows of thorns are present on the tail (rarely only one). The clasper is relatively long and stout, 74–78% of the tail’s length in adult specimens. The terminal bridge (Tb) is straight towards the tip of dorsal terminal 2, and the spike is thin and does not reach the Tb. The ventral terminal cartilage has a short apophysis, and its outer edge is narrow. The distal tip of the axial is relatively narrow.

Distribution
Endemic of the Southwestern Atlantic, from southern Brazil to at least the Beagle Channel [26826]

Size / Weight / Age
TL (max): 228–1017mm Argentinian Waters, 165–869mm Chilean Water [26826]

Habitat
marine; depth range 25–350 m [26826]

Remarks
shark-references Species-ID=15264

Parasites (arranged by Jürgen Pollerspöck)
Cestoda
  • Acanthobothrium domingae FRANZESE & IVANOV, 2020 [28777]