THE PACIFIC COAST. ( 



irregularly mai-ked by the lines of growth. vSpire acute, of three 

 or more moderately 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 veiy 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. 

 Suceinea cingulata Forbes, from Mazatlan, is described in the 

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



Spurious Species. 

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



Genus HELIX Linnaeus. 



HELIX TUDICULATA Binney vol. ii. p. 118, pi. xvi. 



Helix tudicidata Pfeiffee, 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. Calif orniensis. 



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



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



Hdix 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 arboreiorum 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 



