| Main Ref. | Lucena, C.A.S., 2011 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Distinguished from other species of the Roeboides guatemalensis-group by the number of perforated scales on the lateral line (83-100), body depth (31.8-36.1%), predorsal distance (49.1-51.9%), number of scale rows above the lateral line (20-22), scale rows around the caudal peduncle (27-30), scale rows below the lateral line (20-24), and the shape of the humeral spot (slightly rounded extending over 5-7 horizontal rows of scales and 5-8 vertical rows and with tenuous, short extension on the anterodorsal portion). Description: Dorsal fin rays i+9; anal fin rays iv-v, 45-50; pectoral fin rays i+12-14; pelvic fin rays i,7 (Ref. 87931). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 83 - 100 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 20 - 22 |
| Scale rows below lateral line | 20 - 24 |
| Scales around caudal peduncle | 27 - 30 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 9 - 10 |
| on upper limb | 5 - 7 |
| total | |
| Vertebrae | |
| preanal | 15 - 15 |
| total | 38 - 38 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 10 - 10 |
| Adipose fin |
| Attributes | forked |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 13 - 15 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 8 - 8 |