Binney on Terrestrial Molliisks. 7 



irreguhirly marked by the lines of growth. Spire acute, of three 

 or more modei'titely convex whorls, separated by a well impressed 

 suture, the last whorl large and long, narrowing towards the base ; 

 body portion of the face of the shell moderately large. Aperture 

 ovate, three fourths the length of the shell ; fold of the columella 

 distinct. 



Length of axis ^, breadth \ inch. 



Geographical Distribution. Oregon. 



Remarks. Somewhat allied to S. pudorina in form, but very dif- 

 ferent in color. (Gould). 



I have not seen this species. The above is Gould's de- 

 scription. The figure I have given is a fac-simile of the 

 outline of the figure referred to above. 



Extra Limital Species. 



Succinea cingiilata Forbes, from Mazatlan, is described in the 

 Proceedings of the Zoological Society, 1850, p. 56. 



Spurious Species. 

 Succinea aperta Lea, vid. vol. ii. p. 67. 



Genus HELIX Llnn^us. 



HELIX TUDICULATA Binney vol. ii. p. lis, pi. xvi. 



Hdix tudiculata Pfeiffek, Mon. Hel. Viv. i. 283. 



Pfeiffer (1. c.) repeats Binney's description, not having 

 seen the shell, and suggests doubtfully its being a variety 

 of H. Californiensis. 



HELIX NICKLINIANA Lea vol. ii. p. 119, pi. vi. a. 



Helix Nichliniana Tkoschel, Arch, fiir Nat. 1839, ii. 221. 



Helix Californiensis Chemnitz, ed. 2, p. 332, pi. Ivii. fig. 14-15, Excl. var. 2, 

 (1846). 



Reeve, No. 661. 



Pfeiffer, Mon. Hel. Viv. i. 339; iii. 229. 



Helix arboretorum Valenciennes, Voy. de la Venus. Moll. pi. i. fig. 3. 

 Helix nemoraviga Valenciennes, 1. c. fig. 1. 



" Animal reddish gray, tentacles and base of foot bluish ; quite 



