68 



series of spots or bands of horn-color; spire short, rather acute; 

 whorls 5, scarcely convex, the last inflated; aperture roundly lu- 

 nar, within somewhat yellow; peristome acute, somewhat thickened 

 within, its columellar portion dilated above, arched and reflected, 

 almost covering the perforation. Greater cliam, 16, lesser 14; 

 height 13 mill. . . „ ... .. 



"Var. b. The columellar portion of the peristome with a 

 single obtu-e, tooth-like callosity. 



"Helix levis, Pfeiffer Mon Hel Viv 1:54; 3:128; Zeits f Mai 

 1845, 2:152; in Chemnitz ed 2, 1:249, t 36 f .16, 17 (1846).— Keeve 

 Con Icon 1214.— W. G. Binney Terr Moll. 4:18 t 76 f 10. 



"Polymita levis, Tryon, Am V Conch 2:320 t 5 f 21? (1866). 



"Columbia Biver. Dr. Newcomb doubts its being a Calif or- 

 nian or Oregon species." — B 180 f 316. Figure is marked "var." 



"Rosalia bay, mainland of Lower California, in N. lat. 28 

 degrees, 30 mm., Anthony 1896. Erroneously referred to the 

 Columbia riv.r by Pfeiifer."— Dall Phila ac pr 1900, 100. 



E. AREOLATA 



Under Helix. — "'Shell perforated, orbicularly c moid, striat- 

 ed, shining, white, variously ornamented with revolving interrupt- 

 ed reddish lines; spire depressed conoid; whorls five, rather convex, 

 the last scarcely descending, somewhat convex at base; aperture 

 roundly lunar, smoky within; peristmne acute, somewhat thicken- 

 ed within, its columellar portion shortly arched, dilated, reflected, 

 with one tooth-like callosity (sometimes wanting), and almost cov- 

 ering the umbilicus. Greater diam. 26, lesser 23; heigh'". 18 mm. 



"Helix areolata, Sowerby, Brit. Mus. — Pfeiffer in Zeitschr f 

 Mai 1845, 2:154; Mon Hel Viv 1:152; in Chemnitz ed 2, 1:248, t 

 36 f 10-13.— Philippi, Icon 2, 15, 184, t 9 f 4 (1847).— Gould, Terr 

 Moll 3:15.— W. G. Binney Ter Moil 4:19 t 76 f 3, 11.— Reeve, Con 

 Icon 664. 



"Polymita areolati, Tryon Am J Conch 2:319, t 23 (6) f 5 

 (1866). 



"Arionta veitchii, Tryon, Am J Conch 2:316 t 5 f 19 

 [1866]. 



"The specimens figured are from Cerros Island, California. 



