Published November 12, 2025 | Version v1

Oxynoemacheilus tongiorgii

Description

Oxynoemacheilus tongiorgii

Common name. Kor loach.

Diagnosis. Distinguished from Oxynoemacheilus persa, the only other congeneric in Iranian Kor and Mond drainages by: ● caudal slightly emarginate or truncate / ● shallow dorsal crest on caudal peduncle. Size up to 62 mm SL.

Distribution. Iran: Kor drainage.

Habitat. Moderately fast-flowing to standing waters of springs and streams with muddy bottoms.

Biology. No data.

Conservation status. EN; appears to be declining within its very small range.

Remarks. Previously thought to be a species of Seminemacheilus, but molecular data show that it belongs to Oxynoemacheilus. Originally described from Kol drainage, which is a mistake.

Further reading. Nalbant & Bianco 1998 (description); Freyhof et al. 2011 (generic position).

Notes

Published as part of Freyhof, Jörg, Yoğurtçuoğlu, Baran, Jouladeh-Roudbar, Arash & Kaya, Cüneyt, 2025, Handbook of Freshwater Fishes of West Asia, GmbH, Berlin / Boston :De Gruyter on page 537, DOI: 10.1515/9783111677811, http://zenodo.org/record/17881367

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Additional details

References

  • Nalbant, T. T. & P. G. Bianco. 1998. The loaches of Iran and adjacent regions with description of six new species (Cobitoidea). Italian Journal of Zoology 65 (Suppl.): 109-123. https://doi.org/10.1080/11250009809386803
  • Freyhof, J., F. Erk'akan, C. Ozeren & A. Perdices. 2011. An overview of the western Palaearctic loach genus Oxynoemacheilus (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters 22: 301-312.