Morphology Data of Hemibrycon inambari
Identification keys
Abnormalities
Main Ref. Bertaco, V.A. and L.R. Malabarba, 2010
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Males with bony hooks on the dorsal-, pectoral-, anal- and pelvic-fin rays; pectoral- and pelvic-fin lengths and body depth slightly differ compared with females; anal-fin shape, slightly concave in (vs. nearly straight in females); mature males with gill gland on first gill arch, covering the first branchial filaments (Ref. 85819).

Descriptive characteristics of juvenile and adult

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

This species is distinguished from most of its congeners by the number of lateral line scales (41-44 vs. 39-41 or 44-58). It shares similar lateral line counts with some of its congeners, but differs from H. boquiae, H. metae, H. polyodon, and H. taeniurus by the number of scales along anal-fin base scale sheath (6-10 vs. 10-24). It differs from H. jabonero by the number of gill rakers (17-18 vs. 19-21); from H. brevispini by the number of cusps of three anteriormost dentary teeth (5 vs. 3), and by absence of bony hooks in the caudal-fin rays of males (vs. presence); from H. divisorensis and H. surinamensis by the absence of a wide black asymmetrical spot covering base of caudal-fin rays; from H. helleri and H. jelskii by the size of humeral spot (over 7-8 vs. 5-6 horizontal series of scales; from H. helleri by the number of predorsal scales (13-16 vs.16-18), and by the total number of vertebrae (41-43 vs. 39-40); from H. mikrostiktos by the size of humeral spot (6-7 vs. 2-3 horizontal series of scales), and by total number of pelvic-fin rays (7 vs. 8); from H. paez, H. quindos, and H. virolinica by the number of cusps of premaxillary inner row teeth (5-7 vs. 3-4); from H. rafaelense and H. raqueliae by the number of predorsal scales (13-16 vs. 10-12 and 10-13); from H. raqueliae by the number of cusps of first maxillary tooth (3 vs. 5) (Ref. 85819).

Ease of Identification

Meristic characteristics of Hemibrycon inambari

Lateral Lines Interrupted: No
Scales on lateral line 41 - 44
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 7 - 8
Scale rows below lateral line
Scales around caudal peduncle 14 - 14
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 10 - 11
on upper limb 6 - 7
total
Vertebrae
preanal 18 - 19
total 39 - 40

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 8 - 8
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 22 - 26

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   10 - 12
Pelvics Attributes  
Position    
Spines     
Soft-rays   6 - 7
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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