| Main Ref. | Keith, P., R. Hadiaty, F. Busson and N. Hubert, 2014 |
| Appearance refers to | Male; Female |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | always different colors between mature adults |
| Remarks | Males have long and thin urogenital papilla with pointed to rounded tip (vs. rounded in females); and jaw, dorsal, caudal and anal fins slightly longer than in females. |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | cycloid and ctenoid scales |
| Diagnosis |
Sicyopus rubicundus is distinguished by having the first dorsal fin with five spines in both sexes, a second dorsal fin with one spine and nine segmented rays and an anal fin with one spine and nine segmented rays, and base of the first dorsal fin does not reach the base of the second dorsal fin origin in both sexes. It also differs from all other congeners by having 15 pectoral-fin rays, 10-12 scales in zigzag series (vs. 7-9), a greater caudal peduncle depth (10-12 vs. 8-10%SL) and greater fins length (Ref. 97628). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | 35 - 41 |
| 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 | 6 - 6 |
| Soft-rays total | 9 - 9 |
| Adipose fin | absent |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 1 - 1 |
| Soft-rays total | 9 - 10 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 15 - 15 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 5 - 5 |