Long-necked halls

Long-necked halls
Derichthys serpentinus
Systematics
Class : Ray fins (Actinopterygii) Subclass : Neuflosser (Neopterygii) Subclass : Real bony fish (Teleostei) Cohort : Elopomorpha Order : Eel-like (Anguilliformes) Family : Long-necked halls
Scientific name
Derichthyidae
Gill , 1884

The long-necked eels (Derichthyidae), also called long-necked eels , live in the deep sea at depths of up to 2000 meters in the Atlantic , Pacific and Indian Oceans . Adult fish live mesopelagic or bathypelagic. The long dorsal fin begins behind the end of the pectoral fins , pelvic fins are missing. The anus is behind the middle of the body. Long-necked halls are 30 to 60 centimeters long, they have 125 to 160 vertebrae .

The genus Derichthys is short-snouted, Nessorhamphus has a long, pointed mouth, Coloconger , until recently the only genus of the monotypical family Colocongridae, has a stocky body with a short mouth for eels.

Genera and species

• Genus Coloconger
• Genus Derichthys
  • Derichthys serpentinus Gill, 1884 .
• Genus Nessorhamphus
  • Nessorhamphus danae Schmidt, 1931 .
  • Nessorhamphus ingolfianus (Schmidt, 1912) .
• Genus Thalassenchelys Castle & Raju, 1975
  • Thalassenchelys coheni Castle & Raju, 1975
  • Thalassenchelys foliaceus Castle & Raju, 1975

literature

• Joseph S. Nelson, Terry C. Grande, Mark VH Wilson: Fishes of the World. Wiley, Hoboken, New Jersey, 2016, ISBN 978-1118342336

Web links

Commons : Langhalsaale (Derichthyidae)  - Collection of images, videos and audio files

• Longneck eel on Fishbase.org (English)