Morphology Data of Bryconamericus pinnavittatus
Identification keys
Abnormalities
Main Ref. Dagosta, F.C.P. and A.L. Netto-Ferreira, 2015
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Presence of of pelvic-fin hooks on the middle portion of first to fourth innermost branched pelvic-fin rays based on single specimen.

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 sub-terminal/inferior
Type of scales cycloid scales
Diagnosis

Bryconamericus pinnavittatus is distinguisged from all congeners, except B. bolivianus, B. cismontanus, B. deuterodonoides, B. grosvenori, B. hyphesson, B. lambari, B. macrophthalmus, B. ornaticeps, B. patriciae, B. rubropictus, B. tenuis, and B. thomasi, by having 11-13 branched anal-fin rays (vs. 15 or more). It can be diagnosed from B. bolivianus, B. deuterodonoides, B. grosvenori, B. hyphesson, B. lambari, B. ornaticeps, B. patriciae, B. rubropictus, B. tenuis, and B. thomasi by having two maxillary teeth (vs. three or more), from B. cismontanus by having four outer premaxillary teeth (vs. 5 or 6), and from B. macrophthalmus by having 34-38 perforated lateral-line scales (vs. 40-41) (Ref. 99308).

Description: Dorsal-fin rays ii,8; Anal-fin rays iii,11-13; pectoral-fin rays i,11-12; pelvic-fin rays i,5,i or i,6,i; 3 longitudinal scale rows between lateral line and pelvic-fin origin (Ref. 99308).

Ease of Identification

Meristic characteristics of Bryconamericus pinnavittatus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 34 - 38
Scales in lateral series
Scale rows above lateral line 4 - 5
Scale rows below lateral line
Scales around caudal peduncle 12 - 12
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal 16 - 16
total 35 - 35

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
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 14 - 16

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   7 - 8
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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