118 PROCEEDINGS OP THE CALIFORNIA 



whorls, the deeper suture, and the thin, white, reflected lip, sufficiently charac- 

 terize this as a distinct species. 



Helix facta Newc. State Collection, Species 1099. 



H. testa obtecte rimata, depresso-orbiculari, solida, compacta, glabra, albida, 

 fusco-rubro uni-zonata ; anfr. 5 ad 5% convexiusculi, ultimus descendens ; sutura 

 modice impressa ; apertura ovalis ; labro crasso, reflexo, flavido. 



Diam. maj. 0.42, min. 0.35 pol. Alt. 0.22 pol. 



Hab. Insul. " Santa Barbara," et " San Nicolas." 



Shell with perforation covered, depressed orbicular, solid, compact, smooth, 

 whitish, zoned with a brownish red band ; whorls 5 to h% somewhat convex, 

 the last descending ; suture slightly impressed ; aperture oval ; lip thick, 

 reflected, yellowish. 



A sub-fossil variety measures 0.60 by 0.32 inches. Very numerous on Santa 

 Barbara Island ; less so on San Nicolas. 



This species differs so essentially from the ordinary type of California Helices 

 as to suggest a tropical region as its original habitat. One character in com- 

 mon with many of our species may be noticed, viz. : the colored band cutting 

 the body whorl, inclosed between two faint light colored cinctures. 



The shell has a little the aspect of H. Reiki Pfr., from the Island of Syra, 

 but is smaller, less elevated, and with a thick reflected yellow lip. 



Helix Whitneyi Newc. State Collection, Species 1112. 



H. testa corneo-fumosa, sub-planulata, polita umbilico perspectivo ; sutura 

 bene impressa ; apertura lunaris ; labro simplici ; anfr. 4. 



Diam. 0.20 pol. Alt. 0.10 pol. 



Hab. prope " Lake Taho," Cal., in montibus " Sierra Nevada," elevatione 

 6100 ped. Angl. 



Shell smoky horn color, nearly flat above, smooth, with a perspective umbili- 

 cus ; suture well impressed ; aperture lunate ; lip simple ; whorls four. 



In the umbilicus resembling H. striatella Anthony, with a smooth surface 

 and a dull, smoky hue. Only three specimens were found, under damp logs and 

 bark along a mountain stream, together with H Breweri, and chersina. 



H. Breweri Newc. State Collection, Species 1113. 



H. testa discoidea, pallide-cornea, nitida, lucida ; sutura sub-canaliculata, 

 late umbilicata ; anfr. 5. apertura lunaris ; labro tenue simplici. 



Diam. 0.20 pol. Alt 0.10 pol. 



Hab. prope " Lake Taho," Cal., et montibus septentrionalibus. 



Shell discoidal, pale corneous, shining, transparent, suture slightly channelled, 

 broadly umbilicate ; whorls 5 ; aperture lunate ; lip thin, simple. 



This shell may be compared with H. arborea Say, from which it differs by its 

 less elevation, more polished and lighter colored surface, and more open umbili- 

 cus. Eight specimens found ; one from Northern California, by Prof. Brewer. 



Helix Duranti Newc. State Collection, Species 987. 

 H. testa depressa, discoidea, pallide-cornea sub-lente minutissime striata, 



