Tetrabrachiidae
| Tetrabrachiidae | ||||||||||||
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Tetrabrachium ocellatum |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Tetrabrachiidae | ||||||||||||
| Regan , 1912 |
The Tetrabrachiidae ( Gr .: tetra = four, brachion = arm) are a family of small, little-researched marine fish related to the frogfish . Until 2009, the family only had one species, Tetrabrachium ocellatum , so it was monotypical . In 2009 a second species was finally described, Dibrachichthys melanurus . Both species live on the coasts of Australia , New Guinea and Indonesia .
features
The fish are five to seven centimeters long. Their head is large, the mouth for armfinches is rather small, the eyes are small. Palatine teeth and a swim bladder are missing. The trunk is elongated and laterally flattened, the skin is loose. The gill opening is small and sits under the base of the pectoral fin .
Your dorsal fin is supported by 14 to 17 rays , the anal fin by eight to twelve. The first ray of the dorsal fin is transformed into a small Illicium ("Angel").
literature
- Pietsch, Theodore W. 2005. Tetrabrachiidae. Tetrabrachium ocellatum. Four-armed frogfish. Version October 28, 2005. in The Tree of Life Web Project
- Pietsch, TW, Johnson, JW and RJ Arnold (2009): A new genus and species of the shallow-water anglerfish family Tetrabrachiidae (Teleostei: Lophiiformes: Antennarioidei) from Australia and Indonesia . Copeia 2009 (3): 483-493. doi : 10.1643 / CI-08-192
Web links
- Tetrabrachiidae on Fishbase.org (English)