The Conchologist's First Book / A System of Testaceous Malacology, Arranged Expressly for the Use of Schools, in Which the Animals, According to Cuvier, Are Given With the Shells, a Great Number of New Species Added, and the Whole Brought Up, as Accurately as Possible, to the Present Condition of the Science.

by Edgar Allan Poe; Thomas Brown

Pillar, in univalves the internal continuation of the columella or inner lips, extending from the base to the apex.

Pinnated, winged.

Plaited, folded.

Plaits, folds.

Plicated, folded or plaited.

Posterior, see Margin.

Produced, lengthened out.

Protrude, to thrust forward.

Punctuated, like the punctures of a thimble.

Pyriform, pear-shaped.