Chapter C: Callous, indurated

Callosity, a protuberance.

Calcareous, relating to lime.

Canal, the prolongation of the beak.

Canaliculated, channeled or grooved.

Cardinal, see Teeth.

Carinated, like a boat’s keel.

Cartilage, a flexible fibrous substance by which the valves are
united.

Cartilaginous, resembling a ligament.

Chambered, divided by partitions.

Cicatrix, the muscular impression.

Ciliated, edged with bristles or hairs.

Cinerous, of an ash colour.

Clavate, club-shaped.

Columella, the upright pillar of the shell.

Complicated, doubled together.

Compressed, flattened.

Concave, hollowed out.

Concentric, running to the centre.

Cone, the form of a sugar loaf.

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.

Coronated, crowned towards the apex.

Costated, ribbed.

Cortex, anterior skin.

Crenulated, notched at the margin.

Crispated, with waving lines.

Cuneiform, wedge form.

Cylindrical, round like a roller.

Cybiform, boat-shaped.