"The Lingula anatina has a long peduncle issuing from between the umbones. The valves are nearly…
"The species of the genus Clio, belonging to this order, exist in prodigious numbers in the…
"The descriptions of it are very obscure; it appears to be destitute of shell, the body globular, the…
"The Carinaria has an elongated transparent body, dotted with elevated points, and furnished toward…
"The Chiton Chilensis has a smooth border; it is found in crevices of rocks under stones, near…
"The Lamp-Shell, Terebratula maxillata, has a smooth convex shell, the animal attached by a peduncle."…
"In these animals, which generally appear like small slugs, the branchiæ are arranged along on…
"Found in the vicinity of the Canary Isles, the shell is minute, glassy, and compressed." — Goodrich,…
"The shell of Limacina rostralis resembles a small nautilus in form." — Goodrich, 1859
"This is furnished with four tentacula, two of which are smaller than the others; at the end of these,…
"The Chiton spinosus is bordered by long, black, aculeted spines; found in the South Seas;…
"It has an aperture at each end; the animal inhabiting it is of a cylindrical form, and inclosed in…
"These animals, called Umbrella-Shells, are furnished with a shell, which, however, is often…
"The B. velum is very elegant, and of a light-brown color; the apex and base are both white,…