Morphology Data of Esmaeilius darabensis
Identification keys
Abnormalities
Main Ref. Esmaeili, H.R., A. Teimori, Z. Gholami and B. Reichenbacher, 2014
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors always different colors between mature adults
Remarks Males possess vertical flank bars (vs. absent in females but with one small oval to lozengeshaped black spot at the central base of the caudal fin and irregularly arranged thin brown vertical patches on the flank (absent in males).

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

This species can be diagnosed from its closely related species Aphanius shirini

by having 9-18 flank bars in males (vs. 7-10), small irregular vertical patches of brown color on the flank of females (vs. prominent dark brown blotches of round or irregular shape), and symmetrically shaped triangular to trapezoid otoliths with a rostrum clearly longer than the antirostrum (vs. quadrangular to trapezoid otoliths with short and equally sized rostrum and antirostrum). It differs from other congeners by the combination of four characters in both sexes: longer anal fin (15.5% SL in males, 12.1% SL in females), larger pelvic fin (8.1-12.5% SL in males, 7.04-10.3% SL in females), greater scale width (4.1-6.0% SL), and otolith characters. Furthermore, males possess greater scale length (3.0-4.8% SL) and small caudal peduncle (0.9-1.5% minimum body depth); and females have short caudal fin length (12.7-19.2% SL) (Ref. 95579).

Ease of Identification

Meristic characteristics of Esmaeilius darabensis

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 23 - 28
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 7 - 10
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 10 - 13
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 11 - 15
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 10 - 13

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   13 - 18
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   5 - 8
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