Main Ref. | Lima, S.M.Q. and W.J.E.M. Costa, 2004 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
Distinguishable from the other species of the genus by having a broad dark bluish gray stripe along lateral midline of body, restricted to inner layer of tegument, overlapped by superficial dark brown spots. Also distinguished from the remaining species of the southeastern Brazil by having nine pectoral-fin rays, high number of odontodes (interopercular 59-70 vs. 30-52, opercular 23-30 vs. 10-20), anal-fin origin at vertical posterior to dorsal-fin base and a dark gray opercular patch of odontodes vs. light yellow . Differs from T. nigricans and T. immaculatus by a combination of longer nasal and maxillary barbels (nasal reaching pectoral fin base, vs. between orbit and opercular patch of odontodes; maxillary reaching anterior third of pectoral fin, vs. to interopercular patch of odontodes) and a single median third supraorbital pore vs. third supraorbital pore paired (Ref. 54465). |
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 | 36 - 37 |
Attributes | |
Fins number | |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | |
Soft-rays total | 12 - 13 |
Adipose fin | absent |
Attributes | more or less truncate |
Fins number | |
Spines total | |
Soft-rays total | 10 - 11 |
Pectoral | Attributes |
Spines | |
Soft-rays 9 - 9 | |
Pelvics | Attributes |
Position abdominal behind origin of D1 | |
Spines | |
Soft-rays 5 - 5 |