Enantiomorphs and taxonomy of three conchological species in flat-shelled snails (Pulmonata, Camaenidae).

Biomodal (flat/globular or slender/tall) shell/body shapes are associated with dichotomous (simultaneous reciprocal or non-reciprocal) modes of copulation behaviour in the fully-shelled stylommatophoran snails. In flat-shelled groups that copulate simultaneously reciprocally, no study has found an example of enantiomorphism that persists within a population. However, the original description of a flat camaenid snail, , noted that it is dextral- or sinistral-coiled.