Morphology Data of Crossocheilus obscurus
Identification keys
Main Ref. Tan, H.H. and M. Kottelat, 2009
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Diagnosed from other Southeast Asian species of Crossocheilus by the following

combination of characters: one pair of rostral barbels, maxillary barbels absent; midlateral stripe with edges not sharply contrasted, slightly curved downward, obscured in largest individuals, continued on median caudal-fin rays, reaching posterior margin; black mark between anus and anal fin absent; mouth width 30-36 % HL; and size reaches up to at least 14 cm SL (Ref. 81211).

Description: Dorsal fin with 3 simple and 8½ branched rays; anal fin with 2 simple and 5 ½ branched rays (Ref. 81211).

Ease of Identification

Meristic characteristics of Crossocheilus obscurus

Lateral Lines Interrupted: No
Scales on lateral line 32 - 33
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Spines total
Soft-rays total 11 - 11
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   15 - 16
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Soft-rays   9 - 9
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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