A Manual of Conchology / According to the System Laid Down by Lamarck, with the Late Improvements by De Blainville. Exemplified and Arranged for the Use of Students.

by Thomas Wyatt

P. fragilis.

P. dolium.

P. umbilicata.

P. muscorum.

P. Lyonetiana. Lyonet’s Pupa. Pl. [18], fig. 5.

Species cylindrical, obtuse, aperture compressed and distorted by the last whorl in its adult state making suddenly a gibbous inflection to the left.

P. muscorum. The moss Pupa.

Species very small, oval or more or less spherical, obtuse, light brownish colour; aperture large, with one tooth; volutions convex; outer lip white and reflected.

P. mumia. The double-toothed Pupa. Pl. [19], fig. 2.

Species cylindrical, obtuse at both ends, aperture semi-ovate, with two teeth.