. Bulletin - United States National Museum. Science. Ag:Iai» iiifiiiiiata, Gould. Shell umbilicated, large, discoidal, biconvex, obtusely carinated at the periphery, widely nmbilicated, smoky yu-,. 92* above, roughened with minute, oblique, rasp-like irregularities, running obliquely to the striae of growth, and bearing very short, soft hairs in the fresh state, below very black, shining and minutely granu- lated; whorls 6J, convex; aperture rhom- boidal; peristome reddish, somewhat reflected at base; throat silky lilac, near the peristome smoky. Diameter, 37"""; he
. Bulletin - United States National Museum. Science. Ag:Iai» iiifiiiiiata, Gould. Shell umbilicated, large, discoidal, biconvex, obtusely carinated at the periphery, widely nmbilicated, smoky yu-,. 92* above, roughened with minute, oblique, rasp-like irregularities, running obliquely to the striae of growth, and bearing very short, soft hairs in the fresh state, below very black, shining and minutely granu- lated; whorls 6J, convex; aperture rhom- boidal; peristome reddish, somewhat reflected at base; throat silky lilac, near the peristome smoky. Diameter, 37"""; height, 20™™. Helix infumaia, Gould, Proc. Bost. Soc, v, 127 (1B55) ; Terr. Moll., iii, 13.—W. G. BiNNEY, Pac. R. R. Rep., vi, 112 (18:.7); Terr. Moll.,iv, 15, pi. Ixxix, fig. 2; L. & Sh., i, 161 (1861).—Pkkiffer, Viv., iv, 351. Aglaja infumata, Tryon, Am. Journ. Coiicb., ii, 310 (18G7j; W. G. BiNNEY, Terr. Moll., V, 352. Californian Eegion from Hnmboldt Bay to latitude 37° 30', espe- cially in Marin, Alameda, Napa, and Mendocino Counties. A coast species. The species has a thick, white, membranous epiphragm. I have already (p. 122) expressed my belief of its being a variety of Jidelis. Jaw very arcuate, of uniform width throughout; ends square; an- terior surface with 5-9 crowded, stout ribs, deuticulatiug either margin. Lingual membrane (Terr. Moll., V, Plate IX, Fig. B) has 45-1-45 teeth, with 16 laterals, the seventeenth tooth j^w^of having its inner cutting point bifid. There are no side cusps or cut- ting points on centrals and first laterals. Genitalia : see above, p. 122. The above figure not showing the rough char- acter of the shell, the accompanying figure of the epidermic of a fresh specimen is given, without the hairs however. The animal is black with, bright red tubercles. Young shells are sometimes found banded. It is sometimes seen on branches of buckeye trees. Fig. Eularjred view of surface of A. infumata. The figure
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