Redescription of Paracobitis rhadinaea (Regan, 1906) from Sistan Basin, Iran (Teleostei: Nemacheiliidae)

Crested Loach Taxonomy Chahnime Reservoirs Morphology.

Authors

  • Hamed Mousavi-Sabet Department of Fisheries Sciences, Faculty of Natural Resources, University of Guilan, Someh Sara, Guilan, Iran.
  • Ahmad Gharaei International Hamun Wetland Institute, University of Zabol, Iran.
  • Akbar Nasrollahzade Department of Fisheries Sciences, Faculty of Natural Resources, University of Guilan, Someh Sara, Guilan, Iran.
  • Abouzar Habibi Department of Fisheries Sciences, Faculty of Natural Resources, University of Guilan, Someh Sara, Guilan, Iran.
  • Soheil Eagderi Department of Fisheries, Faculty of Natural Resources, University of Tehran, P.O. Box 4314, Karaj, Iran.
October 28, 2014

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Paracobitis rhadinaea, a member of the family Nemacheiliidae, originally described by Regan in 1906 from Sistan basin, is poorely known by the rare materials. The inadequately studied species is redescribed on the base of freshly collected materials. The species differs from all other Paracobitis species by combination of the following characters: stout and elongated body; large size, up to 288 mm; a fully squamated body; slit like posterior nare; and midlateral series of large, irregular set and shaped dark, brown blotches. P. rhadinaea is endemic to Sistan, Iran.