Morphology Data of Characidium xanthopterum
Identification keys
Main Ref. Silveira, L.G.G., F. Langeani, W.J. da Gra├ža, C.S. Pavanelli and P.A. Buckup, 2008
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 terminal
Type of scales cycloid scales

Distinguished from other species of genus Characidium by the bright yellow fin coloration, and by the absence of conspicuous dark bars along the sides of body in

individuals larger than 3.5 cm SL (vs. dark bars or marks present on the sides of the body in specimens of all sizes in the remaining species of Characidium) (Ref. 76854).

Description: D ii,8, ii,9, ii,10; A ii,6, ii,7; P iii,8, iii,9, iii,10; V i+8 (Ref. 76854).

Ease of Identification

Meristic characteristics of Characidium xanthopterum

Lateral Lines Interrupted: No
Scales on lateral line 32 - 36
Pored lateral line scales 32 - 36
Scales in lateral series
Scale rows above lateral line 3 - 4
Scale rows below lateral line 3 - 3
Scales around caudal peduncle 10 - 12
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 32 - 33


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Spines total
Soft-rays total 10 - 12
Adipose fin present

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 8 - 9

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   11 - 13
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 )
Entered by Torres, Armi G.
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17