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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]
Pomacea bridgesii, common name the spike-topped apple snail or mystery snail, is a South American species of freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Ampullariidae. These snails were most likely introduced to the United States through the aquarium trade.
Pomacea diffusa was originally described as a subspecies of Pomacea bridgesii. [1] Pain (1960) [2] argued that Pomacea bridgesii bridgesii was a larger form with a restricted range, with the smaller Pomacea bridgesii diffusa being the common form throughout the Amazon Basin (Brazil, Peru, Bolivia). [1]
Another anti-predator adaptation in the apple snail genera Pomacea and Pila, is the tubular siphon, used to breathe air while submerged, reducing vulnerability to attacking birds. The apple snail's usual enemies are the birds limpkin and snail kite. Apple snails inhabit various ecosystems: ponds, swamps and rivers. Although they occasionally ...
Shells of two different species of sea snail: on the left is the normally sinistral (left-handed) shell of Neptunea angulata, on the right is the normally dextral (right-handed) shell of Neptunea despecta The shell of a large land snail (probably Helix pomatia) with parts broken off to show the interior structure.
Viviparus georgianus, common name the banded mystery snail, is a species of large freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Viviparidae, the river snails. This snail is native to the southeastern United States.
Naticidae, common name moon snails or necklace shells, is a family of medium to large-sized predatory sea snails, marine gastropod molluscs in the clade Littorinimorpha. The shells of the species in this family are mostly globular in shape.
Viviparus subpurpureus (Say, 1829) - olive mystery snail [7] [8] † Viviparus suessi Neumayr in Neumayr & Paul, 1875 † Viviparus suessoniensis (Deshayes, 1826) † Viviparus suevicus Wenz, 1919 † Viviparus sukljei Jenko, 1944 † Viviparus symeonidisi Schütt, 1986 † Viviparus syzranicus (Pavlov, 1925) † Viviparus tardyanus Locard, 1883