Illustrated Index of British Shells / Containing figures of all the recent species

by G. B. Sowerby

Propilidium, [X.] 25.

Psammobia, [III.] 1-4.

Puncturella, [XI.] 3.

Pupa, [XXIV.] 5-16.

Purpura, [XVIII.] 5.

Recluzia, [XVI.] 20.

Rissoa, [XIII.] 3-28; [XIV.]

Saxicava, [I.] 15, 16.

Scalaria, [XV.] 16-20.

Scaphander, [XX.] 26, 27.