H. testa solida, depresso-globosa, anguste obtecte umbilicata, supra cæruleo-cinerea, infra sordido-alba, spira sub-turbinata; anfr. 6 convexi, ultimus descendens; striæ sub-lente numerosæ insculptæ circum-volutæ; apertura sub-rotundata; columella callosa, obsolete unidentata; peristoma vix reflexum, introrsum callosum.
Diam. maj. 1, min. 0.88 pol. Alt. 0.75 pol.
Var. b, anfr. superiores undis transversis albis.
Hab. Insulis “Santa Barbara,” et “San Nicolas,” Cal.
Shell solid, depressly globose, umbilicus narrow and covered, above of an ashy sky-blue, below of a dirty white; spire sub-turbinate; suture well impressed, whorls 6 convex; numerous microscopical striæ, sculptured and revolving with the whorls; aperture rounded; columella callous, obsoletely one (sometimes two) toothed; lip scarcely reflected, thickened within; var. b, superior whorls with white transverse undulating lines.
Hab. Santa Barbara, and San Nicolas Islands, Cal.[9]
This species was found in great abundance alive. The animal is of a deep smoky hue, almost black, with sometimes the terminal half-inch of the foot of a dirty white. It is dedicated to a distinguished American Conchologist.
Helix crebri-striata Newc. State Collection, Species 1036.
H. testa obtecte vel aperte umbilicata, turbine-depresse-globosa, translucido-cornea; anfr. 5 convexiusculi, ultimo descendente; apice sub-mamillato; sutura bene impressa; striæ transversæ valde et creberrime insignæ, striæ longitudinis microscopice incisæ; apertura sub-rotunda; peris. diverso (tenue, acute, sub-reflexo, vel crasso intus calloso) approximato cum callo profuso conjuncto, vel sine callo; prope umbilicam expanso.
Diam. maj. 0.92, min. 0-75 pol. Alt. 0-55 ad 0-80 pol.