"A. anatina is eaten by ducks and crows. The latter, when the shell proves too hard to penetrate, mount with it into the air, and letting it fall, pick out the fish from the broken shell.
"Chamacea has only three genera.
| Diceras. | |
| Chama | Chama. |
Etheria, a rare genus, from the Indies and Madagascar.
"Diceras is a fossil genus—only two species known according to Lamarck.
CHAMA.
"Linnæus had assembled in his genus, Chama, shells with equal and with unequal valves, shells fixed to other marine bodies, with those that are free; some with one, others with two muscular impressions. In the present genus, Chama, the shells are irregular, thick, scaly, or spinous. The hinge has one thick tooth, often notched: the beaks are bent inwards. They are found in the Indian, American, and Mediterranean seas. There are several fossil species.