HELIX. 



in 



Lingual membrane with 176 rows of 56 — 1 — 56 teeth; centrals 

 and laterals long, obtusely pointed ; uncini long, with two or 

 three denticles. 



Lingual deutitioa of Uelix calif or niensis. 



Helix carpenter!, Newcomb. — Shell nmbilicated, roundly conical, 

 apex obtuse, obscurely marked with one brown band, well striated, under 

 the lens numerous very minute spiral striations ; 

 whirls five and a half, rounded ; suture well marked ; Fig. 298. 



aperture circular, with terminations approximating ; 

 peristome moderately expanded, at the columella 

 broadly so, but not adherent. Greater diam. 23, 

 height 16^ mill. {Newcomb.) 



Helix carpenter!, Newcojib, Proc. Cal. Acad. Nat. Sci. 



(March, 18G1), II, 103. 

 Aglaja carpenteri, Tryon, Am. Journ. Conch. II, 313 



(1866). 

 Helix remondi, Tryon, Proc. Acad. Nat. Sci. Philad. 



1863, 281, pi. ii, f, 1. 

 Arionta remondi, Tryon, Am. Journ. Conch. II, 318, Helix cnrj}fnteri. 



pi. V, f. 18 (1866). 



Cinaloa (Tryon) ; Trinidad, Lower California {Gabb) • Tulare 

 "Valley (Neivcomb). 



The shell figured was received from Dr. Newcomb. 



Helix mornioniim, Pfeiffer. — Shell nmbilicated, depressed, 

 rather thin, with arching stri.T, light red ; spire scarcely elevated-conic ; 

 whirls six, slightly convex, gradually increasing, the last convex abov© 

 and below, rather swollen before, scarcely falling, ornamented above the 



