Raja straeleni

POLL, 1951


Biscuit skate
Classification: Elasmobranchii Rajiformes Rajidae

Reference of the original description
POLL, M. (1951)
Expédition océanographique Belge dans les eaux côtières africaines de l'atlantique sud (1948 - 1949). Poissons. I. Généralités, II. Sélaciens et Chimères. Résultats scientifiques de l'expédition océanographique belge dans les eaux côtières de l'Atlantique Sud (1948–1949), 4 (1): 1–154

Synonyms / new combinations and misspellings
Raja rouxi, Raja (Raja) rouxi, Raja (Raja) straeleni

Types
Raja straeleni
Holotype: IRSNB: 99; Paratype: IRSNB: 104; IRSNB: 107; IRSNB: 106; IRSNB: 105; IRSNB: 103; IRSNB: 102; IRSNB: 101; IRSNB: 100; Syntype: MRAC: 80331 MRAC: 80332 MRAC: 80327 MRAC: 80328 MRAC: 80329 MRAC: 80330
Raja rouxi
Syntype: MNHN: 1969-0227; MNHN: 1969-0203; MNHN: 1969-0214;


Description :


Citation: Raja straeleni POLL, 1951: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2018

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Common names
spa Raya manchada, fra \(T\) Raie tachetée, eng Biscuit skate, eng False thornback skate, eng Skate, eng Spotted skate, por Peixe-areia, por Raia-pontuada-africana

Short Description
A black-spotted skate with a blunt, angular snout, a long, stout tail, and a broad angular disc; strong thorns on upper surface of disc and tail at all stages, sometimes on underside in large individuals [536]. Brown to grey dorsally, with small to large black spots, whorls and blotches; many with gold and black, traversely oblong eyespot on each pectoral base; white ventrally with no dark pores [536]. Juveniles have no dark spots above [20085].

Distribution
Eastern Atlantic: Rio de Oro, Western Sahara to South Africa. Source: www.gbif.org

Human uses
fisheries: commercial; gamefish: yes

Biology
Oviparous, paired eggs are laid. Embryos feed solely on yolk [733]. Found in shallow enclosed bays and on the slope [536]. Feeds on invertebrates, bony fishes and fish offal.

Size / Weight / Age
70.0 cm TL (male/unsexed; [20084]); 67 cm TL (female); max. published weight: 1,385 g (Ref. 377); max. published weight: 1,685.0 g

Habitat
demersal; oceanodromous; marine; depth range 80 - 800 m [5130], usually 100 - 300 m [20084]

Remarks
shark-references Species-ID=5800;

Parasites (arranged by Jürgen Pollerspöck)
Cestoda
  • Echinobothrium dorothyae CAIRA, PICKERING, SCHULMAN & HANESSIAN, 2013 [18038] [19536]

Copepoda
  • Schistobrachia kabata DIPPENAAR, 2016 [24641]