| Main Ref. | Zhang, E., 2005 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Differs from all other congeners in Southeast Asia and China by having a conspicuous, quadrate and forwards pointed proboscis reflected downwards against the snout and anteriorly bilobed with one large, unicuspid and acanthoid tubercle on the distal end of each lobe, and a combination of the following characters: snout with a deep groove across its tip to form a transverse lobe; 34-35 lateral line scales; 16 circumpeduncular scales; a small mental disc (length 38.1-43.8% HL); an anterior position of anus (anus to anal distance 25.9-30.6% of pelvic to anal distance); a slightly pointed snout (Ref. 56230). Description: dorsal fin with 4 simple and 7-8 branched rays; anal fin with 3 simple and 5 branched rays; pectoral fin with 1 simple and 13-14 branched rays; pelvic fin with 1 simple and 7-8 branched rays (Ref. 56230). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 34 - 35 |
| Pored lateral line scales | 34 - 35 |
| Scales in lateral series | |
| Scale rows above lateral line | 4 - 4 |
| Scale rows below lateral line | 2 - 3 |
| Scales around caudal peduncle | 16 - 16 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | |
| Adipose fin | absent |
| Attributes | forked |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays |