| Main Ref. | Armbruster, J.W., 2008 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | no special organs |
| Different appearance | males alike females |
| Different colors | males alike females |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Distinguishes from its congeners by having dark vermiculations on the abdomen (vs. spots, long, fairly straight, wide lines, or plain); also from all congeners except Peckoltia bachi by having the dorsal and lateral surface of the body mottled (vs. with spots or saddles); and from P. bachi by having the spots on the head small (vs. large) and generally forming vermiculations (vs. separate), the pelvic spines narrow (vs. wide), and the eye high on the head (vs. low) (Ref. 77026). |
| 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 | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 2 - 2 |
| Soft-rays total | 7 - 7 |
| Adipose fin | present |
| Attributes | forked |
| 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 |