THE NAUTILUS. 59 



2^ mm. long, and is to be compared with the European variety 

 columella (Von Mart.) or gredleri (Clessin). 



Vallonia cyclophorella Ancey. Abundant. 



Pyramid/via cronkhitei anthonyi Pilsbry. Not uncommon. 



Cochlicopa lubrica (Miiller). One. 



Pupilla muscorum (L.). Several of the typical edentate form. 



Pupilla blandi Morse. Common. 



Pupilla syngenes dextroversa P. & V. New to Colorado. One 

 shell, 4 mm. long, nearly 2 broad; whorls 7, the upper ones not 

 swollen as in typical P. syngenes. 



Vertigo modesta parietalis (Ancey). Common. Rather small for 

 parietalis, but over 2 mm. long; palatal plicae long, as in concinnula; 

 shell clear chestnut ; aperture strongly elbowed above. This is 

 apparently a distinct race, between parietalis and concinnula, but 

 hardly recognizable by a separate name. Ancey's name, ingertolli, 

 certainly included such forms as this, and could be so restricted 

 without much risk of error. 



NOTES. 



NOTE ON EPIPHRAGMOPHORA INFUMATA GLD. In Mr. Edson's 

 interesting paper on the Land Mollusca of San Mateo Point, Cali- 

 fornia (on the western shore of San Francisco Bay), in the June 

 NAUTILUS (Vol. xxv, p. 17), occurs a statement as to the habitat of 

 E. infumata Gld. which needs correction. While he states the 

 southern limit of this form as Santa Rosa, which is about 50 miles 

 north of San Francisco, I have collected it for many years on the 

 eastern side of San Francisco Bay, in Alameda county. In his 

 Manual of American Land Shells (U. S. Nat. Mus. Bull., No. 28), 

 Mr. Binney also mentions the Bay region and Alameda county as 

 its home as far back as the year 1885. The shells found here are 

 the extreme form of this species (or var. of E.jidelisl}, being black, 

 highly carinate, heavily hirsute, and bearing the scales mentioned 

 by Dr. Gould in his description well marked, as distinguished from 

 the specimens from Marin county and further north. 



As to the typical E. fidelis, collected at San Mateo Point by Mr. 

 Gifford, it seems clear that they were chance specimens or exotic. 

 I might hazard an opinion that this form became introduced through 

 the oyster traffic in which, years ago, the native Washington bivalve 



