| Main Ref. | Zawadzki, C.H., C. Weber and C.S. Pavanelli, 2008 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Diagnosi |
Differs from all other species of the genus, except Hypostomus albopunctatus, by having the pectoral fin spine length equal to or smaller than the pelvic-fin spine. Can be differentiated from Hypostomus albopunctatus by the presence of roundish dark spots on body and fins (vs. pale), and generally having more premaxillary, 39-59 per ramus (Ref. 79067). |
| 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 | |
| totale | |
| Vertebre | |
| preanal | |
| totale |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 1 - 1 |
| Soft-rays total | 7 - 7 |
| Adipose fin | present |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 1 - 1 |
| Soft-rays total | 4 - 4 |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 6 - 6 | |
| Pelvics | Attributes |
| Position abdominal behind origin of D1 | |
| Spines 1 | |
| Soft-rays 5 - 5 |