Amioidinae
| Amioidinae | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Amioidinae | ||||||||||||
| Fraser & Mabuchi , 2014 |
The Amioidinae are a species-poor subfamily of the cardinalfish (Apogonidae). Both types of the family live near the coast in the tropical Indo-Pacific . Amioides polyacanthus , the type species of the family, comes at depths of 75 to about 270 meters of East Africa in the west to Japan in the north and Vanuatu in the East, Holapogon maximus has been at depths from 38 to 100 meters in the Andaman Islands and in the Arabian Sea demonstrated .
features
The two species belong to the growing cardinal group, reach lengths of 22 to 25 cm and have comb scales . Like almost all cardinalfish, they have two clearly separated dorsal fins. A possible synapomorphism , which proves the sister group relationship of the two species, is the arrangement of the sensory pores on the skull. In addition, the Amioidinae show numerous original features . This includes a small but visible eighth dorsal fin spine, a large supramaxillary (a jawbone) (in the Apogoninae it is narrow, in the species of the subfamilies Paxtoninae and Pseudaminae it is absent), many lateral line pores and free neuromasts on the large lateral line scales, a smooth ridge on the preoperculum (the edges of which are sawn) and a caudal fin skeleton with three epuralia (elongated, free-standing bones), two uroneural pairs and five free (not fused together) hypuralia , as well as rod-like ribs from the third to tenth vertebrae.
- Fin formula : dorsal 1 VII-VIII, dorsal 2 I / 9-10; Anal II / 7–8, caudal 15.
- Scale formula : SL 24-25.
- Vertebrae 10 + 14. vertebrae10 + 14;
- Ribs 8.
- Epineuralia ("upper bones") 8.
It is not yet known whether the fish are mouthbrooders like the other cardinalfish.
literature
- K. Mabuchi, TH Fraser, H. Song, Y. Azuma, M. Nishida: Revision of the systematics of the cardinalfishes (Percomorpha: Apogonidae) based on molecular analyzes and comparative reevaluation of morphological characters . In: Zootaxa . Volume 3846, No. 2, 2014, pp. 151-203. doi: 10.11646 / zootaxa.3846.2.1
Web links
- Amioidinae on Fishbase.org (English)