Main Ref. | Alencar, A.R. and W.J.E.M. Costa, 2006 |
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 | sub-terminal/inferior |
Type of scales | |
Diagnosis |
Differs from all other members of the genus by possessing four pelvic-fin rays. Similar to Trichomycterus reinhardti by having a unique color pattern consisting of a broad dark brown stripe on the flank, dorsally bordered by a bright yellow zone without dark marks; but differs from Trichomycterus reinhardti by having a more slender body (body depth 12.6-15.1% SL) and a shorter preorbital length (25.7-39.3% HL) (Ref. 57604). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | 3 - 3 |
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 | 36 - 38 |
Attributes | |
Fins number | |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 10 - 12 |
Adipose fin | absent |
Attributes | more or less truncate |
Fins number | |
Spines total | |
Soft-rays total | 9 - 9 |
Pectoral | Attributes |
Spines | |
Soft-rays 6 - 6 | |
Pelvics | Attributes |
Position abdominal behind origin of D1 | |
Spines | |
Soft-rays 4 - 4 |