Morphology Data of Aphanius mesopotamicus
Identification keys
Main Ref.
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Can be diagnosed by its pigmentation, meristics, and in multivariate morphometric and meristic space: males have clear margins to the unpaired fins, no bars on the caudal fin and have 10-15 clearly defined flank bars. Females possess irregular blotches or spots on the flank. Twelve of 14 meristic characters are significantly different for males and 9 of 13 meristic characters for females, although ranges overlap in all cases. Discriminant function analyses indicate that the variables with the best discriminating power are pectoral fin rays (13-15), scales to pelvic fin (5-7), postorbital length (16% HL) and caudal peduncle length in males; and pectoral fin rays (14-15), scales to pelvic fin (5-8), scales to dorsal fin (4-5), total scales (27-30) and predorsal length in females ( 23% SL) (Ref. 83325).

Ease of Identification

Meristic characteristics of Aphanius mesopotamicus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 26 - 29
Scale rows above lateral line 4 - 5
Scale rows below lateral line 4 - 7
Scales around caudal peduncle 12 - 16
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 10 - 14
preanal 11 - 13


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
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 10 - 12

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   13 - 15
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Soft-rays   5 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17