Anisus septemgyratus ( Rossmässler, 1835 )

Marković, Vanja, Gojšina, Vukašin, Novaković, Boris, Božanić, Milenka, Stojanović, Katarina, Karan-Žnidaršič, Tamara & Živić, Ivana, 2021, The freshwater molluscs of Serbia: Annotated checklist with remarks on distribution and protection status, Zootaxa 5003 (1), pp. 1-64 : 29

54. Anisus septemgyratus ( Rossmässler, 1835)

Findings in Serbia.

Paraspira septemgyrata : Hesse (1929).

Anisus septemgyratus: Jaeckel et al. (1958) .

Anisus (Anisus) septemgyratus : Karaman & Karaman (2007); Gojšina (2021 pers. comm.).

Morphology. Small-sized snail (up to 8 mm diameter). Shell is thin and flat, with 7–8.5 regularly increasing whorls. Aperture is oval. For more details see Welter-Schultes (2012: 59, figure on the top of the page).

Distribution and ecology. Central European species. Lives in small stagnant waters in lowlands. Tolerates temporary droughts (from Welter-Schultes 2012). Scarce findings in Serbia are limited to the Pannonian part—the Danube River, ponds and accumulations near the Danube, and few canals in DTD system.

Other remarks. The species is considered extinct in Austria, critically endangered in the Czech Republic, and vulnerable in Germany and Poland. On the IUCN Red List of threatened species, it has been assessed as LC (Killeen & Seddon 2011).