Littoridina Littoridina gaudichaudii Amnicola List of data deficient molluscs List of non-marine molluscs of Mexico Cochliopidae Telmatobius dankoi Hydrobia List of data deficient invertebrates List of recently extinct molluscs Heleobia castellanosae Assiminea Heleobia parchappii Ouki List of recently extinct invertebrates IUCN Red List of extinct species List of non-marine molluscs of Brazil Texadina Texadina sphinctostoma Lake Tauca List of South American animals extinct in the Holocene