Squatina guggenheim

MARINI, 1936


Angular angel shark
Classification: Elasmobranchii Squatiniformes Squatinidae

Reference of the original description
MARINI, T.L. (1936)
Revisión de las especies de la familia "Squatinidae" en las aguas argentinas ("S. guggenheim" n. sp.). Physis, 12: 19–30

Image of the original description
Image in copyright.

Synonyms / new combinations and misspellings
Squatina punctata

Types
Squatina guggenheim
Holotype: MACN: 938;


Description :


Citation: Squatina guggenheim MARINI, 1936: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 06/2019

Please send your images of "Squatina guggenheim" to info@shark-references.com

Squatina guggenheim MARINI, 1936, © Diego Vaz, Departamento de Zoologia, Instituto de Biociências - USP
Common names
spa Angelito, eng Angular angel shark, eng Argentine angelshark, por Cação-anjo

Short Description
A species of Squatina diagnosed by presenting a single (or multiple in juveniles) row of enlarged, conical and morphologically distinct dermal denticles over dorsal longitudinal midline, from midlength of pectoral fin base to origin of first dorsal fin (in some specimens, to origin of caudal fin); vertebral centra: maximum values 136, [19578]

Distribution
southwestern Atlantic from Rio de Janeiro state, Brazil (approximately 23°S) to northern Argentina [19578];

Biology
Ovoviviparous, embryos feed solely on yolk [733]. We observed that S. guggenheim presents only one functional ovary, on left side; its antimere is poorly developed, very reduced, and lacking oocytes [19578]; Bony fishes were the main food followed by crustaceans and molluscs [4959]. Diets of different size classes showed significant differences. Male and female diets were not found to differ significantly (P>0.01). Engraulis anchoita was the most consumed fish [4959].

Size / Weight / Age
129 cm TL (male/unsexed; [19579]); 130 cm TL (female)

Habitat
demersal; marine; depth range 4 - 360 m [19579], usually 4 - 266 m [4959]

Dentition
18 to 22 vertical rows in both upper and lower jaws, tooth formula 9-9 to 11-11/9-9 to 11-11 [19578];

Remarks
shark-references Species-ID=6922;

Parasites (arranged by Jürgen Pollerspöck)
Cestoda
  • Grillotia (Christianella) carvajalregorum MENORET & IVANOV, 2009 [9461] [25154]
  • Paraberrapex atlanticus MUTTI & IVANOV, 2016 [24017] [25154]

Hirudinea