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The Chinese mystery snail, black snail, or trapdoor snail (Cipangopaludina chinensis), is a large freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Viviparidae. [3] [4] The Japanese variety of this species is black and usually a dark green, moss-like alga covers the shell. [citation needed]
Viviparidae. Viviparidae, sometimes known as the river snails or mystery snails, are a family of large aquatic gastropod mollusks, being some of the most widely distributed operculate freshwater snails. This family is classified in the informal group Architaenioglossa according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.
Diversity [ 1 ][ 3 ] 105–170 freshwater species; 9 genera; more than 150 nominal species. Synonyms. Pilidae. Ampullariidae, whose members are commonly known as apple snails, is a family of large freshwater snails that includes the mystery snail species. They are aquatic gastropod mollusks with a gill and an operculum.
Genus: Hydatina. Species: H. physis. Binomial name. Hydatina physis. (Linnaeus, 1758) Hydatina physis is a species of sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Aplustridae. Its common names include striped paper bubble, green-lined paper bubble, brown-lined paper bubble, and rose petal bubble shell.
Planorbella trivolvis, an air-breathing ramshorn snail. Freshwater snails are gastropod mollusks that live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers.
Pomacea (Effusa) Jousseaume, 1889. Pomacea (Pomacea) Perry, 1810. Pomacea (Surinamia) Clench, 1933. Pomacea is a genus of freshwater snails with gills and an operculum, aquatic gastropod mollusks in the family Ampullariidae, the apple snails. The genus is native to the Americas; most species in this genus are restricted to South America.
Vivipara (incorrect subsequent spelling) Viviparus, commonly known as the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod molluscs. [ 2 ] They are primitive members of the clade Caenogastropoda. The old name of the genus was Paludina.
Type species. Paludina malleata Reeve, 1863. Synonyms. Cipangopaludina (Ussuripaludina) Zatravkin & Bogatov, 1987 accepted, alternate representation. Lecythoconcha Annandale, 1920. Cipangopaludina is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Viviparidae.