. West coast shells. A familiar description of the marine, fresh water, and land mollusks of United States, found west of the Rocky Mountains ... ening the shell. This foot spins abyssus of horny threads, and attaches them to somesupport, thus casting anchor when the animal wishesto remain fixed. The color of this southern shell iswhite and brown, and it is one inch in diameter. Fig. 140 introduces us to another of the Comb-shells, Pecten monotimeris, Cour., very thin and delicate, ribsrounded and rather faint, ears unequal,color inclining to yellow or brown,but variously
. West coast shells. A familiar description of the marine, fresh water, and land mollusks of United States, found west of the Rocky Mountains ... ening the shell. This foot spins abyssus of horny threads, and attaches them to somesupport, thus casting anchor when the animal wishesto remain fixed. The color of this southern shell iswhite and brown, and it is one inch in diameter. Fig. 140 introduces us to another of the Comb-shells, Pecten monotimeris, Cour., very thin and delicate, ribsrounded and rather faint, ears unequal,color inclining to yellow or brown,but variously mottled with white, likethe feathers of a speckled hen. Out-line nearly circular; usually less thanFig. 140. an inch in diameter. Pecten hastatus, Sby., has-ta-tus, Fig. 141. Thisexquisitely beautiful species is essentially a northern,deep-water inhabitant, though it is occasionally foundquite far down the coast. The shell is thin, the earsvery unequal, and the edges of the principal ribs arecut into many short and slender teeth. The valvesdiffer from each other, both in sculpturing and incolor, the lower one being nearly white, while the. 168 THE RED PECTEN. upper one is richly banded with concentric rings ofred and pink. The choice specimen from which this
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmollusks, bookyear188
