286 WEST COAST SHELLS 



brown, sometimes obscurely banded; diameter 22 

 mm. From San Clemente and Santa Cruz Islands. 



Epiphrcuji/iophord tryon'i^ Newc, 

 Tryon's Snail, is shown in Figure 

 274. The shell is strong and solid, 

 globose conical, with a rounded 

 apex and five regular whorls. The 

 Fig. 274 surface is reticulated, or cut into 



fine checks by the crossing of spiral 

 threads and the lines of growth. The color varies 

 from white to brown and the whorls are often 

 banded, while the upper half of each whorl is usu- 

 ally darker than the corresponding lower half. The 

 animal is said to be black. Chiefiy from Santa 

 Barbara Island. 



Epiphragmophora kellettii, Fbs., Kellett's Snail. 

 The shell consists of six whorls, the spire is rather 

 low, and the umbilicus is nearly closed. Shell 

 smooth, color varying from whitish to brown, usu- 

 ally mottled, with a dark ring around the center of 

 the body- whorl. Diameter about an inch. From 

 Catalina Island, where it is reported as plentiful on 

 and under old cactus branches. 



Epiphragmophora stearnsiana^ Gabb, Stearns's 

 Snail, is sometimes called a variety of the last spe- 

 cies. The shell is narrowly umbilicated, solid, with 

 fine incremental striae. Whitish, with ash-colored 

 spots and a brown band. Found on the seaward 

 side of Point Loma, San Diego, where most of the 

 specimens are deaci, and in Lower California. 



Epiphragmophora arnheimi^ Dall, Arnheim's 

 Snail. This small snail is found in Contra Costa 

 Co., Cal., near San Pablo. Its diameter is 18 mm. 



