Main Ref. | Vidthayanon, C. and T.R. Roberts, 2005 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | other |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | placoid scales |
Diagnosis |
This freshwater stingray has a distinct coloration, dorsal disc with pale margin and pale spots in front of the eye and on the posterior rim of the spiracle; a narrow, dusky, gray or brownish-orange (not black) marginal band (but for the one-fourth of the disc nearest to the snout) on the ventral disc surface. Denticulation on the central area of dorsal disc surface and tail are well developed; possess a series of enlarged denticles, some with projecting posterior margins raised above the surface, on dorsal midline between pearl organ and base of sting, the largest on the tail base (Ref. 59378). |
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 | |
Soft-rays total | |
Adipose fin |
Attributes |
Fins number | |
Spines total | |
Soft-rays total |
Pectoral | Attributes |
Spines | |
Soft-rays | |
Pelvics | Attributes |
Position | |
Spines | |
Soft-rays |