Schizothrix fragilis Gomont

Остров Западный Шпицберген (West Spitsbergen island), северный берег залива Хорнсунд (Hornsund), долина реки Ревэльва (Revdalen Valley), подножие склона горы Арикаммен (Ariekammen Mountain). Ровная морская терраса (Fuglebergsletta plain of raised marine terrace). Влажные сообщества Saxifraga oppositifolia, постоянно переувлажненные seepage. (moist Saxifraga oppositifolia community. During the whole vegetation period surfaces were supplied by snow melting water, streams and groundwater seepage. Samples were collected from soil surface, stones, gravel and sand).

West Spitsbergen island, horth coast of the Hornsund bay, Rewatnet lake and lakes, ponds and shallow pools and the Revvatnet lake in the Revdalen valley. Samples were collected on the shallow bottom at the banks of waterbodies from stones and sand).

West Spitsbergen island, north coas of the Hornsund bay, Revdalen valley, Ariekammen Mountain. Site was situated at a distance of 200 m from bird colonies nesting on the Ariekammen slope. Эвтрофное местообитание - влажная тундра с доминирование Calliergon sarmentosum и Tetraplodon mnioides (eutrophic moist moss−tundra). Эрозивные впадины, заполнены водой (до 20 см). Сильное влияние потоков, текущих птичьего базара.