| Main Ref. | Römer, U., D.P. Soares, C.R.G. Dávila, F. Duponchelle, J.-F. Renno and I. Hahn, 2015 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | terminal |
| Type of scales | |
| Diagnosis |
Apistogramma wolli can be distinguished by the following characters: medium-sized (males to 62 mm, females to 40 mm SL); laterally compressed; moderately high-backed and elongate; and pronounced sexual dimorphism and dichromatism. It differs from all known congeners by a combination of the following characters: massive jaws and hypertrophied yellow lips in adult males; dorsal fin with serrated membranes, truncated in females; small (but in females large) squarish lateral spot on center of vertical bar 3; large round, in females upright oval, caudal spot; caudal fin lyrate, in females rounded, with red marginal band to upper and lower lobes (Ref. 104987). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | 20 - 22 |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | 16 - 16 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total | 23 - 24 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 16 - 17 |
| Soft-rays total | 3 - 6 |
| Adipose fin | absent |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 3 - 3 |
| Soft-rays total | 5 - 7 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |