2 new C. boltonii localities, lo- cated near the Peninga estuary (63°40'50”N, 31°13’50”E) and at the Chernaya Guba bay on the White Sea coast (66°31’03”N, 32°55’35”E), are brought on record. The latter site is situated 4.5 km S of the Polar Circle, therefore, technically, the sp. is (as yet) not to be included on the Arctic fauna list. This is the northernmost locality known for the family in Eurasia. All the previously published C. boltonii records from Russia are discussed.