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"The <em>Lingula anatina</em> has a long peduncle issuing from between the umbones. The valves are nearly equal, horny, and flexible. It is found in the Indian Ocean." &mdash; Goodrich, 1859

Lingula anatina

"The Lingula anatina has a long peduncle issuing from between the umbones. The valves are nearly…

"The Lamp-Shell, <em>Terebratula maxillata, has a smooth convex shell, the animal attached by a peduncle." &mdash; Goodrich, 1859

Lamp-shell

"The Lamp-Shell, Terebratula maxillata, has a smooth convex shell, the animal attached by a peduncle."…