Main Ref. | Lévêque, C., 2003 |
Utseende refererar till | |
Bones in OsteoBase |
specialiserade organ | no special organs |
annat utseende | |
andra färger | |
Anmärkningar |
Särskilt slående egenskaper | none |
Lateral kroppsform | fusiform / normal |
Tvärsnitt | |
Dorsal profil av huvudet | more or less straight |
Ögontyp | more or less normal |
Typ av mun/snyte | more or less normal |
Munnens placering | sub-terminal/inferior |
Type of scales | cycloid scales |
Diagnos |
Diagnosis: last simple dorsal-fin ray smooth on hind margin; scale formula 4.5-5.5/27-32/4.5; 2.5 scales between lateral line and pelvic-fin base; 12-14 scales around caudal peduncle; 7-8 branched dorsal fin rays; two pairs of barbels; anterior barbell not reaching to anterior margin of eye/not extending beyond centre of eye; posterior barbel reaching to, or extending beyond, posterior half of eye; lateral line complete and deeply depressed below dorsal fin; 4-6 short and widely spaced gill rakers on lower limb of first gill arch; maximum reported size 89 mm SL; 3 small, independent, round spots on sides; 2nd spot located slightly behind vertical line from last simple dorsal-fin ray; average distance centres 2nd-3rd spot/distance centres 1st-2nd spot (= RDT) is over 1.4 (Ref. 2940, 81282). Description: medium-sized species; mouth subinferior; D: III,8; A: III,5; P:14-15; V: I,7 (Ref. 2940, 81282). Coloration: basic color pattern consisting of 3 small spots aligned along middle of sides; 1st slightly before level of dorsal-fin origin, 2nd behind vertical line from last dorsal-fin ray; 3rd at end of caudal peduncle; this color pattern is characteristic for typical West African form of this species; additional spots may appear between 3 basic spots on mid-lateral line (lepidus form) and there may exceptionally be a series of numerous dots (larvae form) (Ref. 2940, 81282). |
Ease of Identification |
Sidolinjer | 1 avbruten: No |
Fjäll längs sidolinje | 27 - 32 |
Porbärande fjäll längs sidolinje | |
Fjäll i lateralserie | |
Antal rader fjäll ovan sidolinje | 4 - 6 |
Antal rader fjäll under sidolinje | 4 - 5 |
Fjäll runt stjärtfensspole | 12 - 14 |
Skäggtömmar | 4 |
Gälspringor (endast hos hajar/rockor) | |
Gälräfständer | |
på undre del av gälbåge | 3 - 3 |
på övre del av gälbåge | 4 - 6 |
totalt | |
Ryggkotor | |
preanal | |
totalt |
Egenskaper | no striking attributes |
Antal fenor | 1 |
Antal småfenor | Dorsal |
Ventral | |
Totalt antal hårda fenstrålar | 0 - 0 |
Totalt antal mjuka fenstrålar | 11 - 11 |
Fettfena | absent |
Egenskaper | forked; more or less normal |
Antal fenor | 1 |
Totalt antal hårda fenstrålar | 0 - 0 |
Totalt antal mjuka fenstrålar | 8 - 8 |
Bröstfena | Egenskaper more or less normal |
Fenstrålar hårda 0 | |
Fenstrålar mjuka 14 - 15 | |
Bukfenor | Egenskaper more or less normal |
Position abdominal beneath origin of D1 | |
Fenstrålar hårda 0 | |
Fenstrålar mjuka 8 - 8 |