Lima inflata.

L. squamosa.

L. glacialis.

L. annulata.

L. fragilis.

L. linguatula.

L. squamosa. The scaly Lima. Pl. [15], fig. 3.

Answers to the above description, with valves ventricose, armed with vaulted scales.

L. fragilis. The fragile Lima.

Oblong ovate, very pellucid, delicately white, with longitudinal distinct striæ; lower margin denticulated, closely interlocking when the valves are closed.