Gocea ohridana

Gocea ohridana is a species of freshwater snail within the family Hydrobiidae found in Lake Ohrid, North Macedonia, in a small area of less than 10 km2. It lives in rocky areas along the shores of Lake Ohrid, being found in sublacustrine springs underneath stones as deep as 3 m below the water's surface. It faces threats such as deforestation leading to erosion that can impact the snail's ability to filter water; pollution from sewage coming from major cities adjacent to the lake and from agricultural runoff into hydrologically connected Lake Prespa; and an increase in fire hazards in the region. Because of its strict range, low abundance in findings, and threats to its specific environment, it has been classified as a 'Critically endangered' species by the IUCN Red List.