Main Ref. | Sabaj, M.H., D.C. Taphorn and O.E. Castillo G., 2008 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | elongated |
Cross section | |
Dorsal head profile | more or less straight |
Type of eyes | eyes with fixed fatty (adipose) tissue/eyelids |
Type of mouth/snout | |
Position of mouth | sub-terminal/inferior |
Type of scales | |
Diagnosis |
Differs from all other species of the genus Rhinodoras by the following combination of characters: pale, largely absence of dark pigmentation on ventral surfaces; anterior midlateral plates shallow to moderately deep, depth of fifth plate 16.6-26.2% of corresponding body depth; dorsal and ventral wings of anterior plates about equal in depth; midlateral plates anterior to vertical through pelvic-fin origin usually five; tympanal portion of lateral-line canal weakly ossified with two or three emergent plates, posterior-most largest with low medial ridge or procumbent thorn; postcleithral process moderately long and narrow, depth 23.9-34.5% of length; adipose eyelid moderate to large, horizontal diameter 10.9-14.6% of HL; pectoral fin rays usually eight; one-part gas bladder with terminal diverticula small and fused (Ref. 75166). Description: Dorsal fin I,6; Anal fin iii-iv,8-11; Pectoral fin I,7-8; Pelvic fin i6 (Ref. 75166). |
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 |
Attributes | |
Fins number | |
Finlets No. | Dorsal |
Ventral | |
Spines total | 1 - 1 |
Soft-rays total | 6 - 6 |
Adipose fin | present |
Attributes | forked |
Fins number | |
Spines total | |
Soft-rays total |
Pectoral | Attributes |
Spines 1 | |
Soft-rays 7 - 8 | |
Pelvics | Attributes |
Position abdominal behind origin of D1 | |
Spines | |
Soft-rays 7 - 7 |