Description
Although Marisa snails superficially resemble the great ramshorn snail because of the planispiral coiling of their shells, they are not at all closely related to true ramshorn snails in the family Planorbidae.
This is an easily recognizable species: the shell is flat-coiled (planispiral) and is brick red in color. The shell color may sometimes be darker or more vivid, and is fairly often striped.
The shell diameter is usually 35–50 mm (2 in) or even larger.
Read more about this topic: Marisa Cornuarietis
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