Morphology Data of Aphanius furcatus
Identification keys
Main Ref. Teimori, A., H.R. Esmaeili, D. Erpenbeck and B. Reichenbacher, 2014
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors different colors in juveniles and adults
Remarks Males usually possess 7-11 vertical flank-bars, their dorsal, anal, caudal, pelvic and pectoral fins are white but with a dark pigmentation on the base of the 1st-4th dorsal rays (vs. 7-9 dark circular blotches on their flanks, starting behind the operculum and extending until the base of the caudal fin in females, similar to the males, their dorsal, anal, caudal, pelvic and pectoral fins are white). Both males and females display a yellowish dorso-posterior part of the eyes.

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Distinguished from all other species of Aphanius by the following combination of characters: completely without scales; caudal fin slightly forked; males with dark pigmentation at the base of the four anterior dorsal rays; single row of tricuspid teeth with the two lateral cusps shorter than the middle one; rounded otolith with short rostrum and antirostrum of almost equal length; reduction in biomineralization of caudal skeleton such as thin epural bone; 157 (vs. A. dispar) and 170 (vs. A. ginaonis) molecular characters in the 12S mt-DNA and tRNA-Val (Ref. 96446).

Description: males with 9-12 and females with 9-11 dorsal-fin rays; males and females with 9-11 anal-fin rays; males with 12-15 and females with 13-15 pectoral-fin rays; males and females with 5-6 pelvic-fin rays; males with 12-16 and females with 14-16 gill rakers (Ref. 96446).

Ease of Identification

Meristic characteristics of Aphanius furcatus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 12 - 16
total 26 - 27


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Spines total
Soft-rays total 9 - 12
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 9 - 11

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   12 - 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