Hydrolagus
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| Gill , 1862 |
The genus Hydrolagus includes cartilaginous fish (Chondrichthyes) from the order of the sea cats (Chimaeriformes), which for the most part colonize the deep sea . The species live in different oceans and reach a body length of 50 to 80 cm.
The name Hydrolagus comes from the Greek (Yδωρ "water" and Λαγos "hare") and means "water hare".
features
In Hydrolagus the anal and diphycerke caudal fin are fused together to form a continuous fin edge, while in Chimaera , the second genus of the short-nosed sea cat family , they are separated.
distribution
Only Hydrolagus colliei also lives in shallower waters, Hydrolagus novaezealandiae lives on the continental slopes at a depth of 200 to 400 m, other species have adapted to greater depths. Most species live near the Benthal , i.e. near the ground, and are rarely pelagic .
Species list
Currently (February 2017) the genus has 26 species:
- Atlantic Chimera ( Hydrolagus affinis ) - East coast of North America and coast of Portugal
- African Chimera ( Hydrolagus africanus ) - East Africa coast
- Alberts sea rat ( Hydrolagus Albertine ) - Atlantic Ocean in equatorial -proximity
- Hydrolagus alphus - marine area around the Galapagos Islands , 600 - 900 m depth (first description 2006)
- Hydrolagus barbouri
- Hydrolagus bemisi
- Spotted Sea Rat ( Hydrolagus colliei ) - West Coast of North America
- Dean's sea rat ( Hydrolagus deani )
- Hydrolagus eidolon
- Hydrolagus erithacus
- Hydrolagus homonycteris
- Ghost sea rat ( Hydrolagus lemures )
- Hydrolagus lusitanicus - continental slope off the coast of Portugal, 1600 m depth (first described in 2005)
- Hydrolagus macrophthalmus
- Hydrolagus marmoratus
- Hydrolagus matallanasi - Rio de Janeiro and Santa Catarina coast
- Hydrolagus mccoskerii
- Hydrolagus melanophasma
- Hydrolagus mirabilis
- Hydrolagus mitsukurii
- New Zealand Sea Cat ( Hydrolagus novaezealandiae ) - Southwest Pacific
- Hydrolagus ogilbyi - Southeast Asia , Australia
- Hydrolagus pallidus
- Purple sea rat ( Hydrolagus purpurescens )
- Hydrolagus trolli
- Hydrolagus waitei
Individual evidence
- ^ Joseph S. Nelson : Fishes of the World . John Wiley & Sons, 2006, ISBN 0-471-25031-7 , page 47
- ↑ Hydrolagus colliei on Fishbase.org (English)
- ↑ Hydrolagus novaezealandiae on Fishbase.org (English)
- ↑ Hydrolagus on Fishbase.org (English)
- ↑ 81. Amendment to the notice on trade names for fishery and aquaculture products from July 8, 2016 ( BAnz AT 07/21/2016 B5 )
Web links
- Hydrolagus on Fishbase.org (English)