UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 16, No. 9, pp. 107-1 1 1 January 5, 1916 



THREE NEW HELICES FROM CALIFORNIA 



S. STILLMAN BERRY 



In the course of a .somewhat extended study having in view an 

 attempted correlation of the life-zones now recognized as holding for 

 plants and most of the higher vertebrates with the distribution of some 

 favorable group of invertebrates, considerable material has been col- 

 lected which requires consideration that the results may be utilized 

 as an aid in the further work. The present paper, so far as the two 

 Southern California species are concerned, is therefore to be regarded 

 as one of a preliminary series which will be issued at irregular intervals 

 as the material collected seems to require. Two species and one sub- 

 species of land snails are here deserilx'd as new. all of them well- 

 marked and interesting forms. 



Epiphragmophora petricola, new species 

 Shell depressed, conspicuon.sly umbilicate. the umbilicus having a 

 diameter of about one-nintli the greater diameter of the shell. Color 

 a warm golden brown, becoming a little paler and yellower on the base, 

 and with a broad and vei-y conspicuous dark chestnut-brown band on 

 the shoulder, bordered above nnd below by a slightly narrower band 

 of a tint lighter than tiie body of tlie shell; tlie color in dead shells 

 soon bleaching to a more yellow tone. Ix'coming a dead white upon the 

 final loss of the epidermis. Lip (except in old specimens) but little 

 thickened and only slightly reflected save at the pillar, where it tends 

 to cover the edge of the iimbilicus. 



Epidermis somewhat glossy, more so in .shells found dead, but 

 which have not become bleached. Wlini-ls 5%; neanic whorls showing 

 a very fine granulation, vs'ith numerous minute radial wrinkles super- 

 imposed ; three or four spirally disposed .series of small, distinct, quite 

 regularljf spaced, elongate tubercles appear likewise, the latter almost 





