Main Ref. | Nakamura, I., T. Inada, M. Takeda and H. Hatanaka, 1986 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | elongated |
Cross section | compressed |
Dorsal head profile | |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | sub-terminal/inferior |
Type of scales | |
Diagnosis |
Scales on body in regular but non-overlapping rows, some anguilloid, becoming anguilloid in pattern on belly and flanks in front of anus, top of head from interorbit to nape and sides of head with non-imbricate scales, snout, subocular area and chin and throat naked; ethmoid spine short but strong; gill chamber dark; esophagus dark and intestines and stomach pale; no pyloric caeca; males with posterior opening on swim bladder (Ref. 34024). About 10 broad dark brown bands on body. Dorsal, anal and caudal fin margins blackish. Caudal fin small, posterior margin rounded. Pelvic fins comprising two filamentous rays (Ref. 27363). |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | 47 |
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 | 4 - 5 |
on upper limb | 2 - 3 |
total | 6 - 8 |
Vertebrae | |
preanal | |
total | 62 - 66 |
Attributes | |
Fins number | 1 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 0 - 0 |
Soft-rays total | 111 - 135 |
Adipose fin | absent |
Attributes | other (see remark); confluent |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 93 - 105 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 19 - 23 | |
Pelvics | Attributes other (see diagnosis) |
Position thoracic before origin of D1 | |
Spines 0 | |
Soft-rays 2 - 2 |