AIR-BREATHING SNAILS AND SLUGS 277 



ture, and I hope that he or his descendants are living 

 there to this day. 



Epiphragmopkora infumata^ Gld., the Smoky 

 Snail, is commonly reckoned as a variety of the last 

 species, but it is so different that I prefer to consider 

 it as distinct. It lives along the northern coast region 

 of California, and is said to be found in the canyons 

 upon the buckeye trees. In size it is similar to £. 

 fidelis^ but the shell is much depressed and flattened, 

 and the body-whorl has a sharp, angular edge, or 

 keel. The shell has a peculiar cloth-like surface, and 

 is of a nearly black color throughout. The umbilicus 

 is distinct, and the aperture very oblique. 



Epiphragmopkora mormo- 

 num^ Pfr., the Mormon Island 

 Snail is shown in Figure 268. 

 The shell is large and de- 

 pressed, the surface glossy, Fig. 268 

 and the brown edge is girdled 



with white. There is a large umbilicus, and the lip is 

 recurved. This species lives in the Sierra Nevada 

 Mountains, and was first named from specimens 

 taken on Mormon Island in the American River. It 

 does not live in Utah, as one would at first suppose. 



There are several varieties. Var. cala^ Pils., is 

 smaller and less depressed. It is dark reddish-brown 

 in color. The types are from the Calaveras Big 

 Trees. Var. butto7u, Pils., resembles the last in color, 

 but the shell is more depressed, and the surface is 

 set with little prominences that bear golden brown 

 hairs. Var. hillebrandi, Newc, is sometimes reck- 



