Morphology Data of Bryconadenos weitzmani
Identification keys
Abnormalities
Main Ref. Menezes, N.A., A.L. Netto-Ferreira and K.M. Ferreira, 2009
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Presence of a cup-shaped anal-fin gland in sexually active males which is absent in females. Presence of gill glands in sexually active males but not in females. There is slight difference of the anterior anal-fin profile of males and females (Ref. 81197).

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
Type of scales cycloid scales
Diagnosis

A conspicuous dark blotch present at the humeral region. Scales rows between dorsal-fin origin and anal-fin origin 7-8. Mature males with anal-fin gland cup-shaped, its lower part much more developed than the upper (Ref. 81197).

Description: Dorsal-fin rays ii,8; anal-fin rays iv,17-19; pectoral-fin rays i,11-12; pelvic-fin rays i,7 (Ref. 81197).

Ease of Identification

Meristic characteristics of Bryconadenos weitzmani

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 36 - 39
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 13 - 15
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 10 - 13
on upper limb 5 - 7
total
Vertebrae
preanal
total 36 - 38

Fins

Dorsal fin(s)

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

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 21 - 23

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   12 - 13
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   8 - 8
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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