. West coast shells. A familiar description of the marine, fresh water, and land mollusks of United States, found west of the Rocky Mountains ... as and Tuolumne. Fig. 129 gives us a basal view ofa shell found in Southern Califor-nia, particularly around San picture represents a small spec-imen, however, for large ones growto a diameter of an inch and a name is Glyptostoma Newber-ry anum^ W. G. Binney, Glyp-tos-to-ma New-ber-ry-a-num. The spire is flattened andthe umbilicus is very large, distinctly showing thecoil of rounded whorls. The lip of the aperture is thinand acute,
. West coast shells. A familiar description of the marine, fresh water, and land mollusks of United States, found west of the Rocky Mountains ... as and Tuolumne. Fig. 129 gives us a basal view ofa shell found in Southern Califor-nia, particularly around San picture represents a small spec-imen, however, for large ones growto a diameter of an inch and a name is Glyptostoma Newber-ry anum^ W. G. Binney, Glyp-tos-to-ma New-ber-ry-a-num. The spire is flattened andthe umbilicus is very large, distinctly showing thecoil of rounded whorls. The lip of the aperture is thinand acute, the whorls six in number, and the color ofthe shell is nearly black. Helix (Pomattd) aspersa, Mull., Po-ma-shi-aas-per-sa, is a European species which has beenintroduced into this country on a limited scale, as anarticle of food. I have specimens from San Jose,California, where a small colony of them have livedin a sheltered spot for many years. The shell is large, sub-globose, and without anumbilicus. The whorls are four or five in number,the spire obtuse, and the aperture large. The shellis rather thin and its surface is marked by small. 144 THE MAXY-WHORLED SNAILS. wrinkles and lines. Color dark gray, with variousbands of chestnut, crossed by threads of diameter and height are about equal, an inchor more. As is well known, these creatures are highlyesteemed in France and other countries of Europe bylovers of good things. The time may come whenthey will be abundantly raised in California for thesame purpose. Gonostoma Yatesi, Cooper, Go-nos-to-ma Yates-i,is a little species found in .Calaveras county, Califor-nia. The shell is very peculiar from the fact that thespire, instead of being elevated as in most shells, isconsiderably depressed. The whorls are wound roundand round one another in a horizontal plane, and asthe shell-tube grows larger and larger it leaves a hol-low both above and below. Whorls seven, aperturecrescent shaped, color yellowish brown, diameter
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmollusks, bookyear188
