LITERARY SPECIMEN

Rybachy Peninsula, coast NW from Guba Skorbeyevskaya Bay, shale cliffs in supralittoral zone, alt. 0–5 m, 69°55’13.4”N, 32°09’34.8”E; 4.9.2015. (IF1152 — sterile thallus). Observed only once together with Athallia scopularis and C. alcarum in the supralittoral zone. Remarks. — It was synonymised with C. chlorina (Wetmore 1997, Khodosovtsev et al. 2004), however Šoun et al. (2011) showed that this is a distinct species. In the Murmansk region, it was known from the Bolshoy Aynov Island (Vondrák et al. 2016a)