Oxynoemacheilus isauricus, a new nemacheilid loach from Central Anatolia (Teleostei: Nemacheilidae)

YOĞURTÇUOĞLU B., KAYA C., Ozulug M., Freyhof J.

ZOOTAXA, vol.4975, no.2, pp.369-378, 2021 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 4975 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.11646/zootaxa.4975.2.7
  • Journal Name: ZOOTAXA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, EMBASE, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.369-378
  • Keywords: Cytochrome oxidase I, Freshwater fish, Lake Beysehir, Middle East, Taxonomy, SUBSTITUTIONS
  • Recep Tayyip Erdoğan University Affiliated: Yes


Oxynoemacheilus isauricus, new species, from the Lakes Beysehir and Sugla basins in Central Anatolia is distinguished from all other species of the O. angorae group by having a very slender caudal peduncle (its depth 2.2-2.6 times in its length). The new species is further distinguished by having a short head (head length 21-24% SL), and a midlateral series of irregularly shaped blotches on the flank. Oxynoemacheilus isauricus is also distinguished by a minimum K2P sequence divergence of 7.5% and 8.0% in the mtDNA-COI barcode region from O. eregliensis and O. atili, its closest relatives.