Female snail. Rio Uruguai, departamento de Paysandú, Uruguai. (picture not licenced under creative commons)

Male snail. (picture not licenced under creative commons)

Male snail. (picture not licenced under creative commons)

Shell: Neritoid (the species name indicates this already) with distincive difference between male and female snails (see picture above).
The shell of this snail is quite heavy and thick.
Colour: olive green with faint brown bands.
Operculum: corneous
Body: Dark.

Eggs: Aquatic eggs in gelatineous clutches.

(picture not licenced under creative commons)

Habitat: Lives in streaming, oxigen rich water (hence to absense of a breathing siphon).
Distribution: Rio Uruguai, departamento de Paysandú, Uruguai

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