Main Ref. | Freyhof, J. and D.V. Serov, 2001 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | always different morphology between mature adults |
Different colors | |
Remarks | Males of this species are larger and darker than females and show somewhat inflated cheeks. |
Striking features | |
Body shape lateral | eel-like |
Cross section | |
Dorsal head profile | |
Type of eyes | more or less normal |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
Differs from its congeners in Indochina by the combination of the following characters: body with 8-13 quite regular dark bars usually meeting their homologues on back; bars not very contrasted and usually faint on lower half of body; bars on caudal peduncle not reaching ventral midline; bars on predorsal part of body not extending downward beyond lateral stripe in specimens larger than 40 mm SL; prominent lateral stripe often darker than bars; lateral line complete; pelvic fin origin below branched dorsal-fin rays 1-2; caudal fin with 9+8 branched rays; pelvic fin with 8 rays; a complete black bar at caudal-fin base; eye diameter 9.1-21.3% HL, located dorsally and interorbital width 15.0-34.8% HL; caudal peduncle 1.3-1.6 times longer than deep, its depth 10.2-12.6% SL; lateral head length 22.0-25.2% SL; short crests on caudal peduncle; caudal fin deep and emarginate; median caudal-fin ray 63.7-77.6% of length of upper caudal-fin lobe (Ref. 40772). Description: dorsal fin with 4 simple and 8 1/2 branched rays; anal fin with 3 simple and 5 1/2 branched rays (Ref. 40772). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | 72 - 94 |
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 | 1 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 0 - 0 |
Soft-rays total | |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 10 - 11 | |
Pelvics | Attributes more or less normal |
Position abdominal behind origin of D1 | |
Spines 0 | |
Soft-rays 8 - 8 |