Paracobitis vignai is a species of stone loach found in the Sistan basin in Iran. This species reaches a length of .
References
Freyhof, J., H.R. Esmaeili, G. Sayyadzadeh and M. Geiger, 2014. Review of the crested loaches of the genus Paracobitis from the Iran and Iraq with the description of four new species (Teleostei: Nemacheilidae). Ichthyol. Explor. Freshwat. 25(1):11-38.