Hooktooth dogfish
From Wikipedia, the free encyclopedia
| iHooktooth dogfish | ||||||||||||||||
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Data deficient (DD)
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| Aculeola nigra (de Buen, 1959) |
The hooktooth dogfish, Aculeola nigra, is a small, little known dogfish, the only member of the genus Aculeola.
The type specimen is held at the National Natural History Museum, Santiago, Chile.
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[edit] Physical characteristics
Hooktooth dogfish have a blunt flattened snout, very large eyes, a relatively long distance from the eye to the first gill slit, small grooved dorsal spines, a first dorsal fin about halfway between the pectoral and pelvic fins, and a broad caudal fin. They are black with a maximum length of only 60 cm.
[edit] Distribution
They are found in the Eastern South Pacific along the coast of South America from Peru to central Chile.
[edit] Habits and habitat
This shark is a little-known yet common shark that lives between 110 and 560 m. They are ovoviviparous with at least 3 pups per litter. They probably eat bony fish and invertebrates.
[edit] References
- Acuña & Romero (2004). Aculeola nigra. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Database entry includes justification for why this species is listed as data deficient
- Aculeola nigra (TSN 160763). Integrated Taxonomic Information System. Accessed on 5 February 2006.
- "Aculeola nigra". FishBase. Ed. Ranier Froese and Daniel Pauly. 09 2005 version. N.p.: FishBase, 2005.
- FAO Species Catalogue, Volume 4, Parts 1 and 2: Sharks of the Worldpt:Aculeola nigra
