. Bulletin - United States National Museum. Science. PACIFIC COAST SPECIES. 139 Santa Cruz Island, San Miguel Island, Santa Eosa Island, in the California Region; not in Oregon, as erroneously stated. Animal long and slender, smoky white, covered with white, coarse granulations running longitudinally down the back, one line of granu- lations very prominent and central, bordered on either side by a deep furrow; also oblique lines of granulations running down the side of the foot; foot dirty white below; tail short, broad, pointed. Some individuals are darker, with a purplish tinge. The usual co
. Bulletin - United States National Museum. Science. PACIFIC COAST SPECIES. 139 Santa Cruz Island, San Miguel Island, Santa Eosa Island, in the California Region; not in Oregon, as erroneously stated. Animal long and slender, smoky white, covered with white, coarse granulations running longitudinally down the back, one line of granu- lations very prominent and central, bordered on either side by a deep furrow; also oblique lines of granulations running down the side of the foot; foot dirty white below; tail short, broad, pointed. Some individuals are darker, with a purplish tinge. The usual color of the shell is a light chestnut, bat from San Miguel Island I have a large iudividual (30'""') of a very dark hue. The shell is sometimes bandless. The epiphr-figm is white, thick, membranous. My description and figure are drawn from an authentic specimen. Jaw as usual; 5 ribs. The lingual membrane (Terr. Moll., Y, Plate IX, Fig. H) has 50-1-50 teeth, with 15 perfect laterals. The outer laterals have a long inner cutting point, but no side cutting point. Genitalia as in A. Trasli. The flagellate extensions of the vaginal prostate beyond the bulbs in this species are, however, much shorter and stouter. Arionta. ttidiciilata, Bixney. Shell subumbilicated or imperforate, orbiculate-convex; epidermis olivaceous; spire a depressed cone; whorls be- ^;^" tween 5 and 6, slightly convex; body-whorl vo- luminous, expanding somewhat towards the aper- ture; aperture transverse, rather circular; peri- stome whitish, thin, expanded, slightly reflected at the basal portion, at the columella dilated, ^. tudicuuu^ reflected, and aluiost closing the umbilicus; base convex; a well- defined, rather wide, dark chestnut band, margined with a light color above and below, revolves near the the center of the body-whorl, and is more or less visible above the suture on the two whorls preced- ing the last; surface of the outer whorl covered with somewhat reg- ular impressions o
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