Morphology Data of Chrosomus erythrogaster
Identification keys
Main Ref. Page, L.M. and B.M. Burr, 2011
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
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales

Chrosomus erythrogaster can be distinguished by having the following characters: 67-95 scales on lateral line; pharyngeal teeth 0,5-5,0; moderately pointed snout, longer than eye in adult; small, moderately oblique (less than 45°), slightly subterminal mouth ending in front eye; 2 black stripes along side with upper one thin broken into spots at rear while lower one wide, becoming thin on caudal peduncle; olive brown above, dusky stripe along back; black spots (sometimes absent) on upper side, often arranged in row; silver yellow side; black wedge-shaped caudal spot; white, yellow or red below; and large males with vivid color, consisting of bright red belly, lower head and base of dorsal fin, and yellow fins (Ref. 86798).

Ease of Identification

Meristic characteristics of Chrosomus erythrogaster

Lateral Lines Interrupted: No
Scales on lateral line 67 - 95
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
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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