Morphology Data of Xiphophorus mayae
Identification keys
Abnormalities
Main Ref. Meyer, M.K. and M. Schartl, 2002
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Distal part of gonopodium blade ray 3 bluntly pointed; three quarters of the caudal fin with fine red stripes; claw of tip of gonopodium ray 5 greatly enlarged; height/length ratios of tip of blade 5.6-6.3; dark pigmentation of the midlateral band continuous with the dark dorsal pigmentation of the sword in male. Caudal fin in males ray 5-8 forming a long sword; pelvic fin in females reaching to anal-fin base, in males to middle of gonopodium, second ray extremely prolonged and split, middle region thickened (Ref. 42936).

Ease of Identification

Meristic characteristics of Xiphophorus mayae

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 26 - 28
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 14 - 14
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 18 - 19
Vertebrae
preanal
total 28 - 29

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 14 - 14
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total 0 - 0
Soft-rays total 9 - 9

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   14 - 14
Pelvics Attributes  other (see remarks)
Position    before origin of D1
Spines     
Soft-rays   6 - 6
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