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

Papyraceous, thin as paper.

Patulous, with a gap or opening.

Partitions, processes dividing the shells of the Nautilus, Serpula, &c.

Pectinated, resembling the teeth of a comb.

Pedicle, the support of the Anatifera and its corresponding species.

Peduncle, a tube on which any thing is seated.

Pellucid, transparent, clear, bright.

Pentagonal, having five sides.

Perforated, pierced with holes.

Pervious, admitting passage.