| Main Ref. | Delapieve, M.L.S., P.A. Lehmann and R.E. Reis, 2017 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | A male specimen with a small urogenital papilla behind the anal tube. |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | bony plates or armour |
| Diagnosis |
Leptotocinclus madeirae can be diagnosed from its congener L. ctenistus by the absence of a median series of abdominal plates (vs. presence of median series of plates, arranged in one single row) and by having 1-2 (except one specimen with 3) lateral abdominal plates (vs. 3-6). It further differs by having smaller size of the preanal plate (1.5-6.4% SL vs. 7.0-12.0% SL) (Ref. 116855). Description: anal fin i,5; pelvic fin i,5 (Ref. 116855). |
| 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 | 26 - 26 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 1 - 1 |
| Soft-rays total | 7 - 7 |
| Adipose fin | absent |
| Attributes | forked |
| Fins number | |
| Spines total | |
| Soft-rays total | 6 - 6 |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 6 - 6 | |
| Pelvics | Attributes |
| Position abdominal | |
| Spines | |
| Soft-rays 6 - 6 |