Bathysauropsis
Bathysauropsis | ||||||||||||
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Systematics | ||||||||||||
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Scientific name of the subfamily | ||||||||||||
Bathysauropsinae | ||||||||||||
Sato & Nakabo , 2002 | ||||||||||||
Scientific name of the genus | ||||||||||||
Bathysauropsis | ||||||||||||
Regan , 1911 |
Bathysauropsis ( Gr .: “Bathys” = deep; “saurodes” = lizard; “opsis” = appearance) is a genus of small to medium-sized deep-sea fish. The genus contains only two species and is the only one of the subfamily Bathysauropsinae in the family Ipnopidae . Bathysauropsis species live circumglobal in the oceans of the southern hemisphere and in the seas around Indonesia at depths of 800 to 2800 meters.
features
Bathysauropsis are small to medium-sized fish that reach a maximum length of 45 cm. Its body is slender and almost cylindrical, almost round in cross section and only slightly flattened laterally in the rear section. The eyes are large and sit dorsolaterally . The pupils are elliptical. The mouth is large, the gap in the mouth extends behind the eyes. The lower jaw protrudes. The jaw and palate teeth are needle-like and small. The tongue is toothless. All fins are without fin spines. The only short dorsal fin is in the front half of the body, directly above the pelvic fins . The anal fin stands further back, the caudal fin is split and is supported by 19 main rays. A small adipose fin is present. The scales are cycloid and easily fall off. Illuminating organs are missing.
Systematics
Bathysauropsis was the 1911 British ichthyologist Charles Tate Regan described and in the family of ipnopidae asked (Ipnopidae). In 2002 the monotypical family Bathysauropsidae was established for the genus , which later became a subfamily of the Ipnopidae.
species
There are only two types:
- Bathysauropsis gracilis ( Günther , 1878)
- Bathysauropsis malayanus ( Fowler , 1938)
literature
- Joseph S. Nelson , Terry C. Grande, Mark VH Wilson: Fishes of the World. Wiley, Hoboken, New Jersey, 2016, ISBN 978-1118342336 .
- Paxton, JR & VH Niem, 1999. Ipnopidae: tripod fishes. Page 1923-1924. In KE Carpenter & VH Niem (eds.): FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 3. Batoid fishes, chimaeras and bony fishes. Part 1 (Elopidae to Linophrynidae) . FAO , Rome.
Web links
- Family Bathysauropsidae - Lizard greeneyes on Fishbase.org (English)