A Manual of Conchology / According to the System Laid Down by Lamarck, with the Late Improvements by De Blainville. Exemplified and Arranged for the Use of Students.

by Thomas Wyatt

M. solenimyalis.

M. arenaria. The Sand Mya. Pl. [5], fig. 1.

Regular species.

M. erodona. The Erodona Mya.

Irregular species, in which the cavity of the right valve is bordered by strong projections.

M. truncata. The truncated Mya. Pl. [5], fig. 3.

Sub-oval, truncated; small end gaping; large end rounded; covered with a dark yellowish epidermis; inside white; wrinkled transversely.

2. Anatina. The Duck’s Bill. Ten species.

Shell elongated oval, very thin, fragile, semipellucid; much inflated at one end like a duck’s bill, whence it derives its common name; equivalve, very inequilateral; hinge toothless; the anterior side rounded and much longer than the posterior; ligament interior affixed to a bony spoonlike process in each valve, and sustained by a lateral plate running obliquely into the interior of the shell.

Anatina laterna.