Page:Natural History, Mollusca.djvu/174

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162
CYCLOBRANCHIATA.—CHITONIDÆ.

lated, and the margin of the mantle studded with little bundles of bristles, about nine or ten on each side. It varies in colour, but is generally greyish, or dusky olive. I have dredged it of large size in Weymouth Bay, attached to oyster-shells. A much smaller species is also common in that locality (C. cinereus), which occurs in the pools and on the ledges of the shore, near low-water mark.

When put into a glass of sea-water, the Chitons are sluggish, often remaining for days rolled up before they begin to adhere, and then remaining a long time inert on the same spot.