174 



LAND AND FRESH-WATER SHELLS OF N. A. [PART L 



Helix dupeiithouarsii, Deshayes, Rev. Zool. 1839, 3G0 ; in Guekin, Mag. 



1841, tab. XXX ; iu Fer. I, 1G9, pi. xcvii, f. 8-10. — Pfeiffer, Mon. 



Hel. Viv. I, 338, excl. var. ; III, 229 ; in Chemnitz, ed. 2, I, 328, pi. 



Iviii, f. 6-7 (not pi. Ivi, f. 3-5). — Reeve, Con. Icon. 659. — Gould, 



Terr. Moll. Ill, 14.— W. G. Binney, Terr. Moll, IV, 15, pi. Ixxvi, f. 



9 ; Pac. R. R. Rep. VI, 114 (1857). 

 Helix oregonensis, Lea, Trans. Am. Phil. Soc. VI, 100 (1839) ; Obs. II, 



100, pi. xxviii, f. 9 ; Tkoschel, Arch. f. Nat. 1839, II, 221.— DeKay, 



N. Y. Moll. 46.— Pfeiffek, formerly, Mon. Hel. Viv. I, 428. 

 Aglaja dtipetithouarsi, Tkyon, Am. Journ. Couch. II, 315, pi. v, f. 17 



(1866). 



Puffet Sound to San Dieffo. 



Fig. 303. 



Helix ruliciucta, Newcomb. — Shell depressed-globose, umbili- 



cated, rather thin, smooth, surface scarcely broken by incremental strife, 



with occasional revolving lines, horn-color, with a median, 



revolving dark brown band, margined with white ; spire 



little elevated ; whirls five to six, scarcely convex, the 



last flattened-globose, descending at the aperture, convex 



below ; aperture banded within, oblique, roundly lunate ; 



peristome white, thickened, its inner margin obtusely 



rounded, the right portion straight, basal and columellar 



portions reflected, partially concealing the umbilicus. Greater diam. 17, 



tesser 14 ; height 9 mill. 



Helix rufocincta, Newcomb, Proc. Cal. Acad. Nat. Sci. Ill, 117 (1864). 

 Aglaja rufocincta, Tryon, Am. Journ. Conch. II, 315, pi. vi, f. 20 (1S66). 



San Diego and Catalina Isl., California. 



Hdix ruHcincta. 



Cat. No. 



No. of Sp. 



Locality. 



Catalina Island. 



From whom received. 



Dr. J. G. Cooper. 



