AIR-BREATHING SNAILS AND SLUGS 283 



dark stripe, sometimes wider than is represented in 

 the cut. The shell is quite rough, with furrows and 

 hammer marks, and the umbilicus is distinct, though 

 partly covered with the reflexed peristome. The 

 home of this species is along the coast of central 

 California, especially in Marin County. I found 

 several fine specimens there in the summer-time by 

 turning over the dry leaves under the buckeye trees. 



Epiphragmophora calif ornien- 

 sis. Lea, the California Snail, is 

 shown in Figure 273. The origi- 

 nal specimens of this much dis- 

 puted species came from Monte- 

 rey, and that is where it now ^. ^ 



-^' . Fig. 273 



grows to perfection. It loves 

 sand and sea-air and Astragalus leaves, and in sum- 

 mer it may be found near Point Pinos, buried in the 

 sandy soil, underneath the abundant clumps of Rat- 

 tleweed. The figure represents an unusually large 

 specimen. The shell is thin, delicate, and almost 

 globular in form; it is of a light horn-color, with a 

 dark band. 



While the shell just described is almost spherical, 

 a number of varieties exist which diverge from the 

 typical shape very materially. In fact, it has been 

 a disputed point whether they are at all related, but 

 as the general trend of modern research inclines in 

 the direction of unity, they will be so classified in 

 this book. If anyone prefers to consider them as 

 distinct species he will have many good reasons for 

 his opnion. 



Var. nickliniana. Lea. Shell minutely umbilica- 



