Morphology Data of Jenynsia diphyes
Identification keys
Main Ref. Lucinda, P.H.F., M.J. Ghedotti and W.J. Graca, 2006
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

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 terminal
Type of scales

Distinguished by the following combination of characters: absence of mandibular canal pore W; long epiotic processes in adults, extending beyond the first vertebra; anal-fin with 10 rays; discontinuous midlateral and dorsolateral stripes formed by series of blotches on body; midlateral stripe discontinuous anterior to dorsal-fin origin; large third hypobranchial, greater than one-half the length of the second hypobranchial; and presence of teeth on fourth ceratobranchial of adults (Ref. 75966).

Ease of Identification

Meristic characteristics of Jenynsia diphyes

Lateral Lines Interrupted: No
Scales on lateral line 33 - 36
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 14 - 16
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
preanal 15 - 15
total 33 - 33


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Spines total
Soft-rays total 9 - 11
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 10 - 10

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   15 - 18
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Soft-rays   6 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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