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Scyliorhinus besnardi

(Polka-Dot Cat Shark)


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Family : Cat sharks ; Found on the outer continental shelf. Oviparous [1].

Common Names

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Click on the language to view common names.

Common Names in Arabic:


Common Names in Dutch:

Gestippelde Kathaai

Common Names in English:

Polka-Dot Cat Shark, Polkadot Catshark, Polka dot cat shark

Common Names in French:

Roussette Polka

Common Names in Mandarin Chinese:

乌拉圭猫鲨, 烏拉圭貓鯊

Common Names in Russian:

Уругвайская кошачья акула

Common Names in Spanish:

Alit, Lija

Common Names in Spanish, Castilian:

Alitán de lunares, Lija


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Biome: Marine .

Ecology: A little known bottom shark found on the outer continental shelf of southern Brazil and Uruguay at 140 to 190 m depth (Compagno, in prep. b ). Females with eggs in their uterus have been captured in September (Spring ). Maximum size, 50 cm total length (TL ) (possibly reaches a larger size); males mature at 35 to 40 cm TL; females are mature at larger sizes (about 43 cm TL) (unpubl. data ).[2].

List of Habitats :


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Scyliorhinus retifer besnardi Springer & Sadowsky


Name Status: Accepted Name .

Last scrutiny: Data last modified by FishBase 28-Oct-2000

S. besnardi has a well defined color pattern , but recently captured specimens show intermediate color between S. haeckelii (Ribeiro, 1907) and S. besnardi. Further studies are required to find diagnostic features other than color pattern in order to separate these intermediate specimens.[2].

Similar Species

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Members of the genus Scyliorhinus

ZipcodeZoo has pages for 21 species and subspecies in this genus:

S. besnardi (Polka-Dot Cat Shark) · S. boa (Boa Cat Shark) · S. canicula (Smaller Spotted Catshark) · S. caniculus (Smaller Spotted Catshark) · S. capensis (Dogfish) · S. cervigoni (West African Cat Shark) · S. comoroensis (Comoro Catshark) · S. garmani (Brown-Spotted Cat Shark) · S. haeckelii (Freckled Cardinalfish) · S. hesperius (White-Saddled Cat Shark) · S. macrorhynchus (Flathead Cat Shark) · S. meadi (Blotched Cat Shark) · S. platyrhynchus (Spatulasnout Cat Shark) · S. quagga (Polka-Dot Cat Shark) · S. retifer (Chain Cat Shark) · S. retifer retifer (Chain Cat Shark) · S. sibogae (Indian Swell Shark) · S. stellaris (Nursehound) · S. tokubee (Izu Catshark) · S. torazame (Cloudy Cat Shark) · S. torrei (Whitespotted Catshark)

More Info

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Further Reading

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Data Sources

Accessed through GBIF Data Portal February 29, 2008:



  1. Dulvy, N.K. and J.D. Reynolds (1997). Evolutionary transitions among egg-laying, live-bearing and maternal inputs in sharks and rays. Proc. R. Soc. Lond. B 264:1309-1315. [back]
  2. Rincon, G. 2004. Scyliorhinus besnardi. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <>. Downloaded on 04 February 2012. [back]
Last Revised: 2014-11-20