Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Cyprinodontidae
(Pupfishes) > Cyprinodontinae
Etymology: furcatus: The specific name furcatus refers to its slightly forked caudal fin that is unique in Aphanius species.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Subtropical
Asia: Shur River, Kol River, Mehran River, Khurgu and Faryab hot sulphuric springs in the Hormuzgan drainage, Iran.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.3 cm SL male/unsexed; (Ref. 96446); 3.0 cm SL (female)
Morphology | Morphometrics
soft rays: 9 - 11;
Vertebrae: 26 - 27. 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).
Inhabits rivers and springs that are often seasonal and characterized by shallow water and white layers of salt around and within the river. Often dominates on the riversides, where the water is shallow, warm and water flow is slow. Sympatric with Aphanius dispar (Ref. 96446).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Teimori, A., H.R. Esmaeili, D. Erpenbeck and B. Reichenbacher, 2014. A new and unique species of the genus Aphanius Nardo, 1827 (Teleostei Cyprinodontidae) from southern Iran: A case of regressive evolution. Zoologischer Anzeiger 253:327-337. (Ref. 96446)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00456 - 0.01322), b=3.05 (2.91 - 3.19), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .