Morphology Data of Hemibrycon fasciatus
Identification keys
Abnormalities
Main Ref. Román-Valencia, C., R.I. Ruiz-C., D.C. Taphorn, N.J. Mancera-Rodriguez and C. García-A., 2013
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance always different morphology between mature adults
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth terminal
Type of scales
Diagnosis

Distinguished from all congeners by having the following combination of characters: a circular humeral spot that does not pass ventrally below the lateral-line canal and has a only a diffuse, inconspicuous vertical extension; short scales with a rounded posterior margin at the base of the caudal-fin; melanophores present on the posterior margins of the scales all along the sides of body; a dark lateral stripe, formed by deep pigment that is continuous with the caudal peduncle spot; wide, concave pelvic bone; middle part of the dorsal margin of the orbito-sphenoid bone concave, and not in contact with the frontal; ventral tip of extrascapular bifurcate; first postcleithrum not contacting cleithrum; the portion of maxilla with teeth does not reach the dorsal border of the dentary; all maxillary teeth tricuspid; caudal peduncle spot continuous with the dark lateral stripe; and humeral spot extending on to the posterior part of the opercle (Ref. 95113).

Description: Dorsal-fin rays ii-iii,7-8; anal-fin rays iii-v,21-25; pectoral-fin rays ii-iii,8-12 ; pelvic-fin rays i-ii,5-7 (Ref. 95113).

Ease of Identification

Meristic characteristics of Hemibrycon fasciatus

Lateral Lines Interrupted: No
Scales on lateral line 35 - 45
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 5 - 7
Scale rows below lateral line 4 - 6
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 38 - 40

Fins

Dorsal fin(s)

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

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
Back to Search
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17