"Oh, who gave you those nice shells?" asked Lucy, "and how do you know the names?"
"Let my father say if I am correct, first," replied Charles.
"Perfectly," answered his father; "but I fancy that I can guess how you obtained your information. You have been buying these specimens, and had the names from the shell-vender. I hope your purchase did not cost much, for they are not rare shells?"
"No; I should not choose to spend a large sum, even from my purse, until I am a better judge of the value of shells. But as our collection is but small, I thought that Lucy would be glad to see an addition to the stock."
CANALIFERA,
CERITHIUM.
"Thank you, brother," said Lucy, "you never forget me in your purchases or your pleasures."
"Let us return to our subject," said Mr. Elliot, "and notice the families of the next section, which are all carnivorous, living on animal substances. They have a projecting syphon, which conveys the water to them: they are all marine. The syphon passes through the base of the aperture, either into a canal, or channel, or a narrow, recurved margin. The mouth is furnished with a trunk.
"Canalifera contains in the first section,
| Cerithium | Chiefly Murex. |
| Pleurotoma | Murex. |
| Turbinella | Voluta and Murex. |
| Cancellaria | Voluta. |
| Fasciolaria | Murex. |
| Fusus | Murex. |
| Pyrula | Murex and Bulla. |