Oxynoemacheilus kottelati, a new species from the Havran and Karınca streams in Northern Aegean Basin, Türkiye (Teleostei, Nemacheilidae)


Zoosystematics and Evolution, vol.100, no.2, pp.483-492, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 100 Issue: 2
  • Publication Date: 2024
  • Doi Number: 10.3897/zse.100.119915
  • Journal Name: Zoosystematics and Evolution
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Directory of Open Access Journals
  • Page Numbers: pp.483-492
  • Keywords: Anatolia, COI, freshwater fish, loach, taxonomy
  • Eskisehir Osmangazi University Affiliated: Yes


The taxonomic status of the Oxynoemacheilus from the Karınca and Havran streams in the north Aegean Basin was evaluated, and it was concluded that these populations contain a new species. The new species, Oxynoemacheilus kottelati sp. nov., is distinguished by a body with a marbled pattern, a deeper caudal peduncle, a shorter caudal peduncle, a wider interorbital distance, and a shorter middle caudal-fin lope. Oxynoemacheilus kottelati sp. nov. is differentiated from the closest species, O. marmaraensis, in possessing 51 nucleotide substitution sites, a genetic distance of 8.40%, the presence of an axillary lobe at the base of the pelvic fin (vs. absent), and a narrower median incision in the upper lip (vs. absent). Three species delimitation tests (ASAP, ABGD, and PTP) and phylogenetic analyses reinforce the validity of O. kottelati sp. nov. as a distinct species.