. 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 ... Fig. 30 (*) lar, has more ribs and a lessprominent beak. Dredgedoff Santa Barbara Islandsin green mud, at 276 fath- (*) ^^^g ^|^p^i^_ Figure 30 gives an inside view of Venericdrdiacrdssidens, Brod, & Sby., the Heavy-toothed Ve-nus-heart. The figure is of the natural size, andthe specimen from which it was made was obtainedin the vicinity of Icy Cape. Notice the very heav
. 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 ... Fig. 30 (*) lar, has more ribs and a lessprominent beak. Dredgedoff Santa Barbara Islandsin green mud, at 276 fath- (*) ^^^g ^|^p^i^_ Figure 30 gives an inside view of Venericdrdiacrdssidens, Brod, & Sby., the Heavy-toothed Ve-nus-heart. The figure is of the natural size, andthe specimen from which it was made was obtainedin the vicinity of Icy Cape. Notice the very heavyhinge-teeth, from which the species received itsname. The last member of this family to be noticed isnamed Milneria minima, Dall, the Least Milner-shell. It was discovered by Dr. Wm. H, Dall in1866, at Monterey, where it was found nestling onthe backs of abalones. It is a curious little bi-valve, about as large as a grain of wheat, lightbrown in color, very strongly angled, and marked OYSTERS AND SMALL CLAMS 49. by numerous lines of growth. It is worth look-ing for. The members of the genusAstarte have thick shellscovered with dark, heavyepidermis. Astarte, by theway, was the Syrian Venus,so we have another mythicalname added to the (*) which have gone before. As Venus was sui)posed to represent lieauty, so thebeautiful shells are appropriately given her vari-ous names. Figure 31 represents Astarte alask-ensis, Dall, the Alaska Astarte. The figure isabout natural size, and very plainly shows thepecularities of the shell. The epidermis, or peri-ostracum, is very dark, and becomes black in oldshells, while the shell itself is white. This specieslives in Bering Sea, and has been found as farsouth as Puget poldris, Dall,the Polar Astarte, isshown in Figure 32,which is somewhat en-larged. The shell ismore delicate than thelast, with finer andmore numerous ridges,and it has a polished,light brown epidermis. ^^ ^ ^ ^ ^*^ It comes from Alaska, near the Slmmagin
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmollusks, bookyear190
