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

Convolute, whorls running round.

Confluent, running together.

Conoid, figure like a cone.

Contorted, twisted in oblique direction.

Contracted, shortened, shrunk up.

Cordate, heart shape.

Cordiform, form of a heart.

Coriaceous, leather-like consistence.

Corneus, resembling horn.

Coronal, resembling a crown.