Main Ref. | Whitehead, P.J.P., G.J. Nelson and T. Wongratana, 1988 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | males alike females |
Different colors | males alike females |
Remarks |
Striking features | striking fins |
Body shape lateral | elongated |
Cross section | circular |
Dorsal head profile | more or less straight |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | sub-terminal/inferior |
Type of scales | cycloid scales |
Diagnosis |
Body tapering, belly rounded before pelvic fins, with 4 or 5 + 7 or 8 = 11 to 13 keeled scutes from just behind pectoral fin base to anus. Maxilla short, not reaching to edge of gill cover. Pectoral fin with 13 or 14 long filaments and 5 to 7 branched fin rays, much shorter than those of pelvic fin. Anal fin long, the last fin ray joined to the caudal fin, which is small and pointed. |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | 0 - 0 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 0 - 0 |
Scale rows below lateral line | 0 - 0 |
Scales around caudal peduncle | |
Barbels | 0 |
Gill clefts (sharks/rays only) | absent |
Gill rakers | |
on lower limb | 32 - 32 |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 0 - 0 |
Soft-rays total | |
Adipose fin | absent |
Attributes | pointed |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 80 |
Pectoral | Attributes rays very elongated |
Spines 0 | |
Soft-rays 18 - 21 | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines 0 | |
Soft-rays 7 - 7 |