| Main Ref. | Allen, G.R. and M.V. Erdmann, 2012 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | eel-like |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Yellowish brown head and body; greyish brown dorsal and anal fin; dorsal fin membranes with numerous tiny black spots; pale yellow pectoral fin with black spot on upper base; yellow caudal fin with black upper margin and black filamentous outer lobes. Segmented caudal rays 11; adults of both sexes with elongate and filamentous caudal fin outer lobes (much longer in males (up to 50% of SL); dentary incisors with arrowhead-shaped tips; 4 interorbital pore; body depth ca. 20-22 in SL. Maximum size to 27 cm TL (Ref. 90102). |
| 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 | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | extending over most of the back length |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 10 - 10 |
| Soft-rays total | 58 - 60 |
| Adipose fin | absent |
| Attributes | other (see remark); with dorsal and ventral filament |
| Fins number | 1 |
| Spines total | 2 - 2 |
| Soft-rays total | 55 - 57 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 12 - 12 | |
| Pelvics | Attributes |
| Position absent | |
| Spines 0 | |
| Soft-rays 0 - 0 |