Diploneis okhapkinii Kulikovskiy & Lange-Bert.
Diploneis okhapkinii in Lake Baikal: Hotspot of endemic diatoms II. Iconographia Diatomologica, 26: 100, t. 135, fig. 1-3; t. 136, fig. 1-4. 2015
Holotype: Russian Federation, Lake Baikal, Cape Valukan, Station No. 23, stones, alt. 456 m, 54°17'38.976"N, 109°26'40.884"E, 4 Jul 1997 (FR: B6)