Morphology Data of Esmaeilius isfahanensis
Identification keys
Main Ref. Hrbek, T., Y. Keivany and B.W. Coad, 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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is clearly distinguished at the genetic level from its congeners in having 82 molecular apomorphies-19 transversions, 2 transversions/transitions (depending on comparison), and 61 transitions - that show fixed character state differences to homologous characters analyzed in sophiae, persicus and vladykovi from Iran. Thirty-seven of these character states are also apomorphies when compared to anatoliae, danfordii, villwocki, asquamatus and fasciatus from Turkey (see

Males can be distinguished from all other Iranian species by having distinct black edge on the dorsal, anal, and pelvic fins; the dorsal fin is covered with a high density of black blotches (also observed in males of Aphanius anatoliae from Turkey).

Females can be distinguished from those of sophiae and vladykovi by having flank-bars rather than spots; from persicus by less well-defined bars terminating at a mid-flank stripe and a relatively light gray stripe at the caudal-fin base rather than a black spot or blotch. However, flank-bars are also characteristic of females of dispar and fasciatus. Aphanius isfahanensis can be distinguished unambiguously only from vladykovi by a lower lateral-line scale count, but not with any morphometric or meristic character from sophiae or persicus (Ref. 57741).

Ease of Identification

Meristic characteristics of Esmaeilius isfahanensis

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 23 - 27
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 9 - 12
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 10 - 13


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total 10 - 13
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total 10 - 12

Paired fins

Pectoral Attributes  
Soft-rays   15 - 17
Pelvics Attributes  
Soft-rays   6 - 8
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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