Esmaeilius darabensis, the Kol toothcarp, is a species of killifish belonging to the family Aphaniidae.

It can be found in the Golabi spring near the city of Darab in the Fars province, Iran.

[1][2] The scientific name, darabensis, comes from Darab, a city in Iran, as the species is found in a spring near to this location.

[3] The Kol toothcarp, like all members of the genus Esmaeilius, display sexual dimorphism.

Males have 9-18 flank bars, whereas females bear small vertical brown patches on their flanks.