Main Ref. | Ng, H.H. and M. Kottelat, 2013 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Males have elongate genital papilla reaching to origin of anal fin. Anus separated from genital appendages of both sexes by 4.1-7.9% SL. |
Striking features | |
Body shape lateral | fusiform / normal |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | sub-terminal/inferior |
Type of scales | |
Diagnosis |
The following characters distinguished this species from all members of the Hemibagrus planiceps species group: dorsal to adipose distance 7.6-10.9% SL (vs. 10.6-17.6); adpressed dorsal fin reaching (vs. not reaching the origin of the adipose fin) and (except for H. bongan and H. planiceps) adipose-fin base 18.8-20.4% SL (vs. 11.1-17.9). Can be further distinguished from H. bongan in having body depth at anus 12.2-13.6% SL (vs. 9.5-12.9), and from H. divaricatus in having maximum height of adipose fin 4.1-6.0 times in length of base (vs. 1.9-3.2) and eye diameter 17-19% HL (vs. 11-17). Differs further differs from H. gracilis in having caudal peduncle depth 7.3-8.1% SL (vs. 6.2-7.6) and vertebrae 49-50 (vs. 50-52) and H. planiceps in having interorbital distance 30-32% HL (vs. 32-37) and vertebrae 49-50 (vs. 47-49) (Ref. 93057). |
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 | 8 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | 17 - 20 |
Vertebrae | |
preanal | |
total | 49 - 50 |
Attributes | |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 2 - 2 |
Soft-rays total | 7 - 7 |
Adipose fin | absent |
Attributes | forked |
Fins number | |
Spines total | |
Soft-rays total | 12 - 13 |
Pectoral | Attributes |
Spines 1 | |
Soft-rays 8 - 9 | |
Pelvics | Attributes |
Position abdominal behind origin of D1 | |
Spines | |
Soft-rays 6 - 6 |