Main Ref. | DoNascimiento, C. and N. Milani, 2008 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | elongated |
Cross section | compressed |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
This species differs from its congeners by the following set of characteristics: maxillary barbel reaching three fourths along pectoral fin; outer mental barbel not reaching pectoral-fin base; gill rakers on first branchial arch 5-7; vertebrae 41-43; pleural ribs 9; pectoral fin with modally seven branched rays; first basal radial of dorsal fin inserted posterior to vertebrae 11-12; anal fin with 12-15 rays (7-9 branched); caudal-fin lobes pointed; upper caudal-fin lobe with 7 branched rays; lower caudal-fin lobe markedly longer than upper caudal-fin lobe (29.8-33.5% of SL, 1.5 times in HL); pigmentation of the body uniform; cleithral width, 13.6-14.5% of SL; anal-fin base, 12.1-14.8% of SL; caudal peduncle depth, 5.7-6.9% of SL; head length, 20.1-22.2% of SL, 4.5-4.9 times in SL (Ref. 78618). |
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 | 15 - 15 |
total | 41 - 43 |
Attributes | |
Fins number | |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 7 - 7 |
Adipose fin |
Attributes |
Fins number | |
Spines total | |
Soft-rays total | 12 - 15 |
Pectoral | Attributes |
Spines | |
Soft-rays 6 - 8 | |
Pelvics | Attributes |
Position | |
Spines | |
Soft-rays 5 - 5 |