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. castaneus.

P. pectiniformis.

P. striatularis.

P. nummarius.

P. pectinatus.

P. radians.

P. vitreus.

P. glycimeris. The delicious Pectunculus.

Sub-orbicular, umbones produced; finely striated transversely and longitudinally; covered with epidermis, under which it is marked with reddish chestnut spots or bands; inside white; margins crenulated.

P. pilosus. The hairy Pectunculus.