THE NAUTILUS. 75 



1909] ; also southeast of Ontario, some seven miles from tlie foot- 

 hills [R. H. T., March, 1909] ; Frankish Canon, under stones, alti- 

 tude 2500 feet [R, H. T., April 1, 1908] ; at mouth of Stoddard's 

 Canon, at same elevation, under stones [R. H. T., 1909]. 



Specimens found by Dr. Tremper in January, 1908, in an orange 

 grove at Ontario are particularly beautiful examples of the species, 

 some showing a curious tendency toward albinism. 



Vallonia pulchella (Miiller). Redlands, common in greenhouses 

 [S. S. B., 1903, '04, '06, '08]. 



VeHigo occidentalis Sterki. Bluft" Lake, altitude 7,550 feet, 



1907 (one specimen only) [S. S. B.] ; in 1908 quite common in 

 spots in the big BlufT Lake cienaga, in the cienaga just north, and 

 along the " New England Trail," altitude 7,500 feet ; also a few 

 specimens in a cienaga west of Green Valley, altitude 6,900 feet 

 [S. S. B.]. Many more specimens were sent from Bluff Lake dur- 

 ing the present summer by Miss N. G. Spaulding. 



Evidently an abundant species in the more Alpine regions of the 

 San Bernardino Mountains, and I suspect that this or a closely 

 allied form will also turn up in similar localities in the neighboring 

 San Gabriel and San Jacinto Ranges. 



Vertigo sp. Another form occurs with V. occidentalis in the 

 neighborhood of Bluff Lake [S. S. B.. Aug., 1908 ; N. G. S., Aug., 

 1909]. 



Vertigo rowelli (Newcomb). San Bernardino [Binney, '85, p. 

 156]. At best a doubtful record. 



Vitrina alaskanaJ)a\\. San Bernardino Mountains — a common 

 species at Bluff Lake and vicinity [S. S. B., Aug., 1907, Aug., 



1908 ; N. G. S., Aug., 1909] ; cienaga west of Green Valley [S. S. 

 B., July, 1908]. Especially abundant under toillow trees at the 

 edges of a meadow. 



Vitrea cellaria (Miiller). In greenhouses, Redlands [S. S. B., 

 1904-'08]. 



Euconulus fulvus (Miiller). Cienaga west of Green Valley [one 

 specimen, S. S. B., July, 1908]. Altitude 6,900 feet. Bluff Lake 

 Meadow (altitude 7,550 feet) and the neighboring cienages [S. S. 

 B., Aug., 1907, Aug., 1908 (abundant); N. G. S., Aug., 1909 

 (abunilant)]. Near mouth of Mill Creek Caiion [one specimen in 

 drift, S. S. B., July, 1908]. Forest Home, altitude 5,200 feet, a 

 colony of about 20 live individuals found by the writer under sticks 

 on the bank of Mill Creek, June 12, 1909. 



