Galley fish

Galley fish
Jellyfishfish ( Nomeus gronovii )
Systematics
Sub-cohort : Neoteleostei Acanthomorphata Spinefish (Acanthopterygii) Perch relatives (Percomorphaceae) Order : Scombriformes Family : Galley fish
Scientific name
Nomeidae
Günther , 1860

The galley fish (Nomeidae) are marine fish from the order Scombriformes . They live in all tropical and temperate parts of the world's oceans . There are three genera with 16 species that live epipelagically in large schools and sometimes migrate together with umbrella and state jellyfish , including the Portuguese galley . Other species live in the drifting weeds of the genus Sargassum . The fish, which can grow to a length of twelve centimeters to over a meter, feed on zooplankton , small jellyfish and fish.

Galley fish have round scales or lightly combed scales that easily fall off. Their eyes are often surrounded by fatty tissue and their mouths are small. They have two dorsal fins . Adult animals still have their pelvic fins , which sit far in front, slightly behind the pectoral fins . They are connected to the abdomen by a fine membrane and can be hidden in a pit. The caudal fin is forked.

Fin formula : dorsal 1 IX-XII / 10-17, dorsal 2 -III / 15-32, anals I-III / 14-30

Systematics

Cubiceps caeruleus

Cubiceps capensis

Psenes pellucidus

There are 16 species in three genera:

• Cubiceps Lowe , 1843
  • Cubiceps baxteri McCulloch , 1923
  • Cubiceps caeruleus Regan , 1914
  • Cubiceps capensis ( Smith , 1845)
  • Cubiceps gracilis (Lowe, 1843)
  • Cubiceps kotlyari Agafonova, 1988
  • Cubiceps macrolepis Agafonova, 1988
  • Cubiceps nanus Agafonova, 1988
  • Cubiceps paradoxus Butler, 1979
  • Cubiceps pauciradiatus Günther , 1872
  • Cubiceps whiteleggii (Waite, 1894)
• Nomeus Cuvier , 1816
  • Jellyfish fish ( Nomeus gronovii ( Gmelin , 1789) )
• Psenes Valenciennes , 1833
  • Psenes arafurensis Günther, 1889
  • Psenes cyanophrys Valenciennes, 1833
  • Psenes maculatus Lütken , 1880
  • Psenes pellucidus Lütken, 1880
  • Psenes sio Haedrich, 1970

Fossil record

With Carangodes cephalus from the middle Eocene of the northern Italian Monte Bolca formation and Psenicubiceps alatus from the lower Oligocene of the North Caucasus, two fossil galley fish are also known.

Individual evidence

1. ^ Karl Albert Frickhinger: Fossil Atlas of Fishes. Mergus - Verlag für Natur- und Heimtierkunde Baensch, Melle 1991, ISBN 3-88244-018-X .

literature

• Joseph S. Nelson : Fishes of the World. 4th edition. John Wiley & Sons, Hoboken NJ et al. 2006, ISBN 0-471-25031-7 .
• Kurt Fiedler: Fish (= textbook of special zoology. Vol. 2: Vertebrates. Part. 2). Gustav Fischer, Jena 1991, ISBN 3-334-00338-8 .

Web links

Commons : Galley Fish  - Collection of images, videos and audio files

• Galley fish on Fishbase.org (English)