| Main Ref. | Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | none |
| Body shape lateral | short and / or deep |
| Cross section | compressed |
| Dorsal head profile | more or less straight |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | superior |
| Type of scales | |
| Diagnosis |
Pelvic fin on ocular side slightly elongate, extending to near the tip of the isthmus, the distance between the tip of the isthmus and the insertion of the pelvic fine subequal to the length of the pelvic fin base. Second ray of the pelvic fin on ocular side opposite to the 1st on the blind side. In male, the 12th to 18th dorsal rays and the 1st to 8th anal rays greatly elongated into filaments (Ref. 559). Soft ray count of pectoral fin refers to that on ocular side. |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 95 - 113 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 4 - 6 |
| on upper limb | 0 - 0 |
| total | |
| Vertebrae | |
| preanal | |
| total | 40 - 42 |
| Attributes | extending over most of the back length |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 85 - 97 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 71 - 81 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 12 - 16 | |
| Pelvics | Attributes more or less normal |
| Position jugular behind origin of D1 | |
| Spines | |
| Soft-rays |