Helicopsis Helicopsis filimargo Helicopsis austriaca Helicopsis lunulata Helicopsis striata Helicopsis conopsis List of non-marine molluscs of Ukraine Helicella List of non-marine molluscs of Iran List of non-marine molluscs of Moldova Geomitridae List of non-marine molluscs of Cyprus List of non-marine molluscs of Morocco List of non-marine molluscs of Romania List of least concern molluscs List of non-marine molluscs of Bulgaria List of non-marine molluscs of Austria Xerocrassa Xerocrassa geyeri List of recently extinct molluscs List of near threatened molluscs List of non-marine molluscs of Poland List of non-marine molluscs of Slovakia List of recently extinct invertebrates List of non-marine molluscs of Germany List of near threate…

ened invertebrates I. I. Schmalhausen Institute of Zoology List of gastropods described in 2016 List of non-marine molluscs of the Czech Republic List of data deficient molluscs IUCN Red List near threatened species (Animalia) Microcystis (gastropod) Xerocrassa grata Xerocrassa subrogata Xerocrassa ripacurcica ripacurcica Xerocrassa ripacurcica List of data deficient invertebrates Backeljaia gigaxii 2015 in molluscan paleontology