Morphology Data of Pachypanchax varatraza
Identification keys
Abnormalities
Main Ref. Loiselle, P.V., 2006
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

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
Diagnosis

Distinguished from Pachypanchax playfairii in lacking raised dorsolateral squamation and in details of its color pattern. Males without rows of discrete red dots on the flanks and red edging to the vertical fins; female lack any sort of black markings on the dorsal fin. Has the shortest pectoral fins (13.4% SL) among Malagasy Pachypanchax. Differs from Pachypanchax sakaramyi and Pachypanchax sparksorum by the absence of pectoral scales of reduced size. Can be distinguished from Pachypanchax omalonotus by the rounded dorsal and anal fins of males and their lack of discrete metallic gold spangling on the flanks; and also differs from the remaining Malagasy congeners by lack of iridescent white edging to, or darker submarginal banding on, the vertical fins (Ref. 57724).

Description: Dorsal- fin rays iii,8; iv,8; iii,9; iii,10; ii,11. Anal-fin rays iii,14; iii,15; ii,16; iii,16; ii,17. Pelvic- fin rays i,5. Pectoral- fin rays 14-16 (Ref. 57724).

Ease of Identification

Meristic characteristics of Pachypanchax varatraza

Lateral Lines Interrupted: No
Scales on lateral line 30 - 32
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 20 - 20
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal 14 - 14
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 11 - 13
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 17 - 19

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   14 - 16
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   6 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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