| Main Ref. | Keith, P., C. Lord, H. Darhuddin, G. Limmon, T. Sukmono, R. Hadiaty and N. Hubert, 2017 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | always different morphology between mature adults |
| Different colors | |
| Remarks | Jaws longer in males than in females. Urogenital papilla broadly rounded in females and slightly triangular in males. |
| 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 |
Schismatogobius risdawatiae is distinguished by the following characters: pectoral fin usually with 16 rays; pectoral fins with a broad dorsal black band; membrane in first dorsal fin posterior to spine 6 partly connected to base of spine of second dorsal fin in male and not in female; ventral surface of head in male brownish, frenum slightly pigmented; ventral surface of head in female whitish with a blackish border and a white mentum; and frenum and pelvic disk whitish (Ref. 116448). |
| 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 | no striking attributes |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 7 - 7 |
| Soft-rays total | 9 - 9 |
| Adipose fin | absent |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 1 - 1 |
| Soft-rays total | 9 - 9 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 15 - 16 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 5 - 5 |