Barbatula bergamensis Erk'akan, Nalbant & Özeren, 2007[2] Oxynoemacheilus theophilii is a species of stone loach native to Turkey and the island of Lesbos in Greece.

This species occurs in streams and reaches a length of 6.6 centimetres (2.6 in) SL.

The stomach contents of a single female were found to consist of aquatic insect larvae.

[3] Water abstraction and the increased droughts caused by climate change are the main threats.

[1] The fish is named in honor of Theophilus Chatzimichael (1873-1934), a prominent folk painter from the island of Lesbos in Greece, where the fish is endemic.