Catalog of Fishes
literature references
FishBase
IUCN Red List
GBIF
NCBI GenBank
Amblyraja frerichsi
(Krefft, 1968)
Thickbody skate
Classification: Elasmobranchii Rajiformes Rajidae
Reference of the original description
Neue and erstmalig nachgewiesene Knorpelfische aus dem Archibenthal des Südwestantlantiks, einschließlich einer Diskussion einiger Etmopterus-Arten südlicher Meere. Archiv für Fischereiwissenschaft, 19(1), 1–42
Neue and erstmalig nachgewiesene Knorpelfische aus dem Archibenthal des Südwestantlantiks, einschließlich einer Diskussion einiger Etmopterus-Arten südlicher Meere. Archiv für Fischereiwissenschaft, 19(1), 1–42
Image of the original description
Image in copyright.
Image in copyright.
Synonyms / new combinations and misspellings
Raja frerichsi, Raja (Amblyraja) frerichsi
Raja frerichsi, Raja (Amblyraja) frerichsi
Types
Amblyraja frerichsi
Holotype: ZMH: 25248 (old: ISH 1532-1966); Paratype: ZMH: 25249 (old: ISH 1547-1966); ZMH: 25247 (old: ISH 1525-1966 a-m); ZMH: 25246 (old: ISH 1124-1966 a-r);
Amblyraja frerichsi
Holotype: ZMH: 25248 (old: ISH 1532-1966); Paratype: ZMH: 25249 (old: ISH 1547-1966); ZMH: 25247 (old: ISH 1525-1966 a-m); ZMH: 25246 (old: ISH 1124-1966 a-r);
Description :
Citation: Amblyraja frerichsi (Krefft, 1968): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 10/2025
Please send your images of "Amblyraja frerichsi" to info@shark-references.com
Amblyraja frerichsi (Krefft, 1968), male, Chilean waters (off San Antonio) © L. Ignacio Contreras, Laboratorio de Zoología de Vertebrados, Facultad de Ciencias, U. de Chile
Amblyraja frerichsi (Krefft, 1968), male, Chilean waters (off San Antonio) © L. Ignacio Contreras, Laboratorio de Zoología de Vertebrados, Facultad de Ciencias, U. de Chile
Common names
Raya, 
Ray, Thickbody skate
Raya, Ray, Thickbody skate
Short Description
Disc quadrangular; Anterior margin of disc concave behind head, convex at eye level and concave at spiracle level; Mouth slightly arched in subadult males and females, curved in adult males; Teeth with a flat oval base and acute single cusp, arranged in quincunx without sexual dimorphism; Strong tail broad, depressed, tapers from broad base to first dorsal fin; tail moderately long; Dorsal fins strongly acute with long bases and similar shape; Colour: Dorsal disc of fresh adult and subadult male is dark-brown except blackish-brown distal edges, pelvic fins, tail, dorsal and caudal fins. Ventral surface uniformly dark-brown, Dorsal colouration of female is greyish-brown; disc margins, scapulae and pelvic fins darker. Tail, dorsal and caudal fins are blackish-brown [15991]
Disc quadrangular; Anterior margin of disc concave behind head, convex at eye level and concave at spiracle level; Mouth slightly arched in subadult males and females, curved in adult males; Teeth with a flat oval base and acute single cusp, arranged in quincunx without sexual dimorphism; Strong tail broad, depressed, tapers from broad base to first dorsal fin; tail moderately long; Dorsal fins strongly acute with long bases and similar shape; Colour: Dorsal disc of fresh adult and subadult male is dark-brown except blackish-brown distal edges, pelvic fins, tail, dorsal and caudal fins. Ventral surface uniformly dark-brown, Dorsal colouration of female is greyish-brown; disc margins, scapulae and pelvic fins darker. Tail, dorsal and caudal fins are blackish-brown [15991]
Distribution
Southeast Pacific: Chile [16049]. Southwest Atlantic: off the mouth of Río de la Plata, Argentina [785] and Uruguay [5839]. Source: www.gbif.org
Southeast Pacific: Chile [16049]. Southwest Atlantic: off the mouth of Río de la Plata, Argentina [785] and Uruguay [5839]. Source: www.gbif.org
Biology
Oviparous, paired eggs are laid. Embryos feed solely on yolk [733]. Eggs have horn-like projections on the shell [17086].
Oviparous, paired eggs are laid. Embryos feed solely on yolk [733]. Eggs have horn-like projections on the shell [17086].
Size / Weight / Age
size from 404 to 1762 mm TL, the size at birth seems to be about 216 mm TL, immature specimens range from 216 to 817 mm TL, adult females (mature or egg-bearing) ranged from 965 to 1731 mm TL, maturity is attained between 775 and 907 mm LT, no apparent sexual dimorphism were observed in size and disc shape [15991]
size from 404 to 1762 mm TL, the size at birth seems to be about 216 mm TL, immature specimens range from 216 to 817 mm TL, adult females (mature or egg-bearing) ranged from 965 to 1731 mm TL, maturity is attained between 775 and 907 mm LT, no apparent sexual dimorphism were observed in size and disc shape [15991]
Dentition
tooth count in upper jaw 36 (42) arranged in four rows and in lower jaw 37 (40) arranged in five rows [15991]
tooth count in upper jaw 36 (42) arranged in four rows and in lower jaw 37 (40) arranged in five rows [15991]
Remarks
shark-references Species-ID=205;
shark-references Species-ID=205;
Parasites (arranged by Jürgen Pollerspöck)
Monogenea
Monogenea
- Acanthocotyle imo Nacari, Sepulveda, Escribano & Oliva, 2019 [27907]
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