| Main Ref. | Du, L.-N., X.-Y. Chen and J.-X. Yang, 2008 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | eyes absent |
| Type of mouth/snout | |
| Position of mouth | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Distinguished from all other species of the genus by having the following combination of characters: eyes absent; snout pointed; tubular flap of anterior nostril elongated into barbel-like structure, posterior nostril borders anterior one. Long and narrow pectoral fin, almost extending to pelvic-fin origin; pelvic fin reaching slightly beyond anus; caudal peduncle with developed caudal-adipose keel; body entirely lacking scales and color; dorsal fin with 8 branched rays; anal fin with 6 branched rays; pelvic fin with 6 branched rays and caudal fin with 16 branched rays (Ref. 75196). Description: D iii,8; A ii,5-6; P i+10; V i+6-7 (Ref. 75196). |
| 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 | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 11 - 11 |
| Adipose fin |
| Attributes | forked |
| Fins number | |
| Spines total | |
| Soft-rays total | 7 - 8 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 11 - 11 | |
| Pelvics | Attributes |
| Position abdominal beneath origin of D1 | |
| Spines | |
| Soft-rays 7 - 8 |