A new species of cardinalfish (Gymnapogon, Gymnapogonini, Apogonidae, Percomorpha) from the Philippines
| Autor: | Thomas H. Fraser |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Species complex ved/biology ved/biology.organism_classification_rank.species Fish fin Anatomy Biology Percomorpha biology.organism_classification 010603 evolutionary biology 01 natural sciences Apogonidae Spine (zoology) 03 medical and health sciences Pseudamia 030104 developmental biology Genus Gymnapogon Animal Science and Zoology Ecology Evolution Behavior and Systematics |
| Zdroj: | Zootaxa. 4107:431 |
| ISSN: | 1175-5334 1175-5326 |
| Popis: | The new species is consistent with Gymnapogon , a distinct genus having one to three spines on the preopercle edge, fused hypurals (parhypural+1+2 and 3+4+terminal central), a free fifth hypural, two epurals, no supraneurals, scaleless head and body, a single rod-like postcleithrum and complex lines of free neuromasts on the head, body and caudal fin. The new species is distinguished by having a combination of a rounded caudal with 15 branched principal caudal-fin rays, 2 unbranched principal caudal-fin rays, 10 soft dorsal rays with the anterior two rays unbranched, 9 or 10 anal rays with the first ray unbranched and 14 pectoral rays the lower three and upper two unbranched. Nominal species Gymnapogon annona , G. foraminosus , G. japonicus , G. urospilotus and G. vanderbilti have 9 or 10 soft dorsal, 9 or 10 anal rays and 12 to 14 pectoral rays, the lower two and upper two unbranched. Gymnapogon africanus , G. melanogaster and G. philippinus have 9 soft dorsal rays, the first ray unbranched and 8 soft anal rays, the first ray branched. Gymnapogon japonicus has a rounded caudal fin with 13, 14 or 15 branched principal caudal rays. Gymnapogon africanus , G. annona , G. melanogaster , G. philippinus , G. urospilotus and G. vanderbilti have a forked caudal fin with 13 branched principal caudal rays and 2 unbranched upper and lower principal caudal rays. A single preopercle spine distinguishes the new species from the single bifid-like preopercle spine shared by Gymnapogon annona , G. melanogaster and undescribed forms. The wide-spread B-marked species complex made up of Gymnapogon urospilotus , G. vanderbilti and undescribed forms have at least one small upper preopercle spine in addition to the larger single spine near the angle of the preopercle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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