. West American shells; a description in familiar terms of the principal marine, fresh water and land mollusks of the United States found west of the Rocky Mountains, including those of British Columbia and Alaska ... iita,Fabr., which the naturalist, Rev. J. G. Wood, callsthe Little Mullet-shell, because it is often foundin the stomachs of mullets. He advises all zoolo-gists to examine the stomachs of such fishes as theycan obtain, since they often contain objects of muchinterest. ^This little shell, says he, *is about thesize of a capital 0, is exceedingly thin, purple-brown in hue, dark at
. West American shells; a description in familiar terms of the principal marine, fresh water and land mollusks of the United States found west of the Rocky Mountains, including those of British Columbia and Alaska ... iita,Fabr., which the naturalist, Rev. J. G. Wood, callsthe Little Mullet-shell, because it is often foundin the stomachs of mullets. He advises all zoolo-gists to examine the stomachs of such fishes as theycan obtain, since they often contain objects of muchinterest. ^This little shell, says he, *is about thesize of a capital 0, is exceedingly thin, purple-brown in hue, dark at the beak. It may be foundby looking among the roots of corallines and otherAlgae. On our side of the world it lives on thecoast of northern Alaska. Turtonia Occident Mis, Dall, the Western Mullet-shell, also lives in Bering Strait and is said to be larger, stouter, and shorter thanthe last species. We now come to the great suborder Lucindcea,named from Lucina, one of the titles of the goddessJuno, in heathen mythology. The shells internallyare marked with one very long and narrow mus-cle-scar, while the other is nearly round. The pal-lial line which joins them has no sinus. 54 WEST AMERICAN SHELLS. Fig. 38, X i (*) Figure 38gives tw 0views of Thy-asira hisecta,Conr., theCleft Thyas-ira, which wasfound in Pu-get Sound indeep water byProf. 0. 11has also been found in the far north. It is thelargest species of the genus, sometimes measuringtwo or even three inches across. The figure plainlyshows its j:>eculiarities. Thyasira harharensis, Dall, the Barbara Thy-asira, resembles the last, but the beaks are morenearly in the center. It was formerly known asCryptodon and Axinus. It ranges from Washing-ton to Mexico. The shell is white and chalky ex-ternally, and measures 17mm. in length. Thyasira excavdta, Dall, the Sculptured Thyas-ira, has a thin, white shell, with a yellowish epider-mis. The side of the shell is deeply infolded, mak-ing a sharp excavation.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmollusks, bookyear190
