Photostomias
| Photostomias | ||||||||||||
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Photostomias guernei |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Photostomias | ||||||||||||
| Collett , 1889 |
Photostomias is a genus of deep-sea fish from the family of the baleen dragonfish (Stomiidae). Photostomias species live in all oceans worldwide, especially in the mesopelagial , but have also been caught at depths of up to 4000 meters. They feed mainly on lantern fish (Myctophidae).
features
Species of photostomias have a black, elongated body that tapers backwards and can reach a length of 10 to 17 centimeters. The dorsal and anal fins are located far back, just before the small caudal fin. Adult fish lack pectoral fins . The pelvic fins are drawn out long. On the lower jaw wear photostomias TYPES unlike most other baleen dragon fish no Bartel . There is no floor skin between the branches of the lower jaw.
Fin formula : dorsal 22–31, anal 26–32.
species
- Photostomias atrox (Alcock, 1890)
- Photostomias goodyeari Kenaley & Hartel, 2005
- Photostomias guernei Collett, 1889
- Photostomias liemi Kenaley, 2009
- Photostomias lucingens Kenaley, 2009
- Photostomias tantillux Kenaley, 2009
The species differ among other things in the number of their luminous organs .
literature
- Christopher P. Kenaley: "Revision of Indo-Pacific Species of the Loosejaw Dragonfish Genus Photostomias (Teleostei: Stomiidae: Malacosteinae)". Copeia 2009, No. 1, 175-189 doi : 10.1643 / CI-07-224
Web links
- Photostomias on Fishbase.org (English)