. Bulletin - United States National Museum. Science. tme, but without the lamella withiu the outer margin of the peristome. The measuremeuts are, greater diameter 4, lesser 3^™™; height 2^"^^. Haviug before me a single specimen, I am unwilling form- ally to describe the species, which for the ilicrophysa Steamsi. t i • j_ present I designate as Zonites Steamsi (Bland). Zonites Steamsi, Bland, Aun. Lye. N. H. of N. Y., xi, 76, fig. :5 (1875).—W. G. BlN- NEY, Terr. Moll. U. S., v, 128. Astoria and Portland, Oreg.; Olympia, Wash. Ter.,; a species of the Oregonian Region, also found in Alaska
. Bulletin - United States National Museum. Science. tme, but without the lamella withiu the outer margin of the peristome. The measuremeuts are, greater diameter 4, lesser 3^™™; height 2^"^^. Haviug before me a single specimen, I am unwilling form- ally to describe the species, which for the ilicrophysa Steamsi. t i • j_ present I designate as Zonites Steamsi (Bland). Zonites Steamsi, Bland, Aun. Lye. N. H. of N. Y., xi, 76, fig. :5 (1875).—W. G. BlN- NEY, Terr. Moll. U. S., v, 128. Astoria and Portland, Oreg.; Olympia, Wash. Ter.,; a species of the Oregonian Region, also found in Alaska by Mr. Dall. The oiiginal figure is given above. The jaw is of the -same type as described under M. Lansingi, with over 19 ribs. The lingual membrane also is the same as in that species, with four laterals on each side of the central tooth. (See Bull. Mus. C. Z. Y. No. 16, p. 335, Plate I, Fig. M K) ARIOLIITIAX, MoRCH. Animal limaciform, blunt in front, pointed behind. Mantle anterior, j,jg -g small, bluntly trun- cated before and be- hind, free around its edges, containing a well defined, solid, Ariolitnax CoUvnblaiiux. ouL'-hi\\ size. tf>< ulTtP A longitudinal furrow'along the sides above the foot. A distinct loco- motive disk. Eespiratory orifice at the posterior third of the mantle, with a cleft to its right margin. Anal orifice contiguous to the last, slightly below and behind it. Orifices of generation on the right of the body, below the anterior, free part of the mantle, distinct but contiguous (in A. Californicus, certainly), that of the male organ anterior. Tail furnishetl with a perpendicular, triangular mucus pore, with a horizontal mucus slit to the end of the tail. Testaceous i)lateflat, thick, calcareous, simple, not spiral; longer than wide, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfect
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
