| Main Ref. | Tea, Y.-K., R.L. Pyle and L.A. Rocha, 2020 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This species is distinguished from all its congeners by the following set of characters: lateral line with 23-26 pored scales with 16-17 in the dorsoanterior series and 7-9 in the posterior peduncular series; pelvic fins are very long, 56.5-70.0% SL and often reaching past anal-fin terminus in males. Colouration: anterior first to second interspinous membrane spaces of dorsal fin with a metallic blue spot; a large black spot two-thirds distance from dorsal-fin origin; distal third of caudal fin with black margin, iridescent in life (Ref. 121918). |
| 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 | 14 - 14 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 10 - 11 |
| on upper limb | 6 - 6 |
| total | 16 - 17 |
| Vertebrae | |
| preanal | 9 - 9 |
| total | 25 - 25 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 11 - 11 |
| Soft-rays total | 9 - 9 |
| Adipose fin |
| Attributes |
| Fins number | 1 |
| Spines total | 3 - 3 |
| Soft-rays total | 9 - 9 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 15 - 15 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 5 - 5 |