. 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 ... , andtwo lateral teeth; the other has one front and oneside tooth, which slip in between the others inthe opposite valve: from the teeth, in each valve,proceeds a strong rib, which extends to abovehalf-way across the shell and gradually losesitself towards the edge, which is smooth and color of the outside is white, circularly, butfaintly zoned with violet, and is cover
. 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 ... , andtwo lateral teeth; the other has one front and oneside tooth, which slip in between the others inthe opposite valve: from the teeth, in each valve,proceeds a strong rib, which extends to abovehalf-way across the shell and gradually losesitself towards the edge, which is smooth and color of the outside is white, circularly, butfaintly zoned with violet, and is covered with asmooth yellowish-brown epidermis, which appearsdarkest where the zones are: the inside is white,slightly zoned, and tinted with violet and animal, as in all species of this genus, pro-trudes beyond the ends of the shell very much, andis exceeding good food. There are several varieties of this species, in-cluding var. alta, B. & S., which lives in the farnorth; it is short and broad, with a straight nuttallii, Conr., is found in Alaska and alsoin California as far south as Monterey; the shellis very straight, brilliantly polished, and has avery oblique rib. 94 WEST AMERICAN SHELLS. Fig. S3 Siliqua lucida, Conr., the Bright Razor-shell, livesfrom Monterey to San Diego, and, according to , it was confounded by Carpenter with theyoung of S. nuttallii. The shell is small, fragile,and has a short, narrow, and nearly perpendicularrib, or callus. Solen sicdrius,Old., the BluntU a z o r - s h e 11,shown in Figure8 3, is short,slightly curved,and truncated infront as if it had been chopped square off, ^H^iite,with a glossy, yellowish epidermis. This speciesranges from Vancouver Island to San Pedro, rosdceus, Cpr., the Rosy Razor-shell, livesonly in the south. It is two inches long and lessthan half an inch wide, and resembles a small,flattened tube. The shell is straight, rosy whitein color, and is covered with a glossy, horn-coloredepidermis.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmollusks, bookyear190
