| 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 | terminal |
| Type of scales | |
| Diagnosis |
Similar to S. kobensis, but differs from it in having the caudal fin with 2 simple rays on upper and lower margins, and with 2 broad dark bands, and the pectoral fin much shorter than the head. In males, middle part of body on blind side dark-blue and interorbital width broader than that of females. |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 56 - 63 |
| 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 | 6 - 8 |
| on upper limb | 1 - 4 |
| total | 7 - 12 |
| Vertebrae | |
| preanal | |
| total | 35 - 37 |
| 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 | 84 - 91 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 63 - 73 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 11 - 13 | |
| Pelvics | Attributes more or less normal |
| Position jugular behind origin of D1 | |
| Spines | |
| Soft-rays |