| Main Ref. | Cheng, J.-L., H. Ishihara and E. Zhang, 2008 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Females are smaller than males; in individuals more than 12 cm SL, females have longer pectoral fins (16.0-18.8, mean 16.6% SL vs. 12.9-16.7, mean 14.4% SL); and longer prepelvic length (46.2-49.1, mean 47.0% SL vs. 41.1-46.9, mean 43.2% SL); and pelvic fins extending beyond anal-fin insertion in females, but not in males (Ref. 75714). |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Differs from all congeners with a similar caudal-fin shape (truncate or slightly emarginate) by the following unique combination of characters: supraoccipital plate and nuchal plate broadly interspaced and covered with skin; nasal barbels only at most reaching anterior margin of eye; maxillary barbels reaching slightly beyond posterior margin of eye; outer mandibular barbels reaching posterior margin of eye; dorsal fin with a slightly convex distal margin, origin nearer to pectoral-fin insertion than to pelvic-fin insertion; dorsal-fin spine shorter than pectoral spine, with a slightly serrated posterior margin; pectoral-fin spine with a smooth anterior margin; anal fin with 20-23 rays, base length 23.8-32.0% SL, posterior end of anal-fin base anterior to posterior end of adipose fin base; no longitudinal black band extending along flank; eyes large, diameter 16.3-23.7% HL; and vertebrae 5 + 43-46 (Ref. 75714). Description: Dorsal din with a spinelet, a spine and 7 soft, branched rays; pectoral fin with a spine and 8 soft, branched rays; and pelvic fin with 5 soft, branched rays (Ref. 75714). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 8 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 1 - 1 |
| Soft-rays total | 7 - 7 |
| Adipose fin | present |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | |
| Soft-rays total | 20 - 23 |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 8 - 8 | |
| Pelvics | Attributes |
| Position behind origin of D1 | |
| Spines | |
| Soft-rays 5 - 5 |