Auriculella Pfeiffer, 1854

Yeung, Norine W., Slapcinsky, John, Strong, Ellen E., Kim, Jaynee R. & Hayes, Kenneth A., 2020, Overlooked but not forgotten: the first new extant species of Hawaiian land snail described in 60 years, Auriculella gagneorum sp. nov. (Achatinellidae, Auriculellinae), ZooKeys 950, pp. 1-31 : 1

Genus Auriculella Pfeiffer, 1854

Type species.

Partula auricula Férussac, 1821 by subsequent designation ( Gulick 1873).

Diagnosis.

Small to moderately sized Achatinellidae , 4 to 12 mm in adult shell height. Shells either dextral or sinistral, taller than wide, with a strong parietal lamella. Juvenile shells have two columellar lamellae, one or both of which are lacking in adults. Phallus with an epiphallus and a nearly apical appendix. Phallus retractor muscle inserted apically on the epiphallus and not secondarily attached to the appendix. Members of Auriculella are the only achatinellids known to have an epiphallus. All Auriculella species are oviparous ( Pilsbry and Cooke 1914-1916).