THE NAUTILUS. 



. XXVI. AUGUST, 1912. No. 4 



TWO NEW LAND SHELLS FROM CALIFORNIA. 



BY HARRY EDSON 



SONORELI.A ARGUS, 11. Up. 



Shell small, depressed, flesh-colored, with a narrow brown hand 

 encircling the whorls a little ahove the periphery. This shell ap- 

 proaches very nearly S. fisheri, Bartsch hul differs in color, size, and 

 in having a wider umbilicus. 



Collected by Mr. A. M. Strong at the Iron Cap copper mine, 

 Argus range, Inyo Co., California. Cotypes in the geological 

 museum of Stanford University, and A. N. S. Phila. 



The type measures : maj. lat. 11.3mm., min. lat. 9.o mm., alt. 

 5.7 mm., aperture : maj. lat. 6 mm., alt. .".3 mrn.. umbilicus. '2 mm. 



EPIPHRAGMOPHORA DUPETITHOUARSI CUKSTANA, II. Sllbsp. 



Shell large, depressed, polished, obliquely striated, with seven 

 whorls, the last whorl descending slightly near the aperture ; deeply 

 and widely umbiHcated, showing three volutions ; lip slightly re- 

 flexed, the ends approaching ; color translucent brown, circled near 

 the top of the whorls by a dark brown band edged with yellow. 

 The type measures ; greater diam. 26^ mm., lesser diam. 22 

 mm., alt. 15 mm. ; aperture, width 16 mm., alt. 13^ mm., includ- 

 ing peristome. 



This shell is quite, similar to seqaoicola Cooper, but >hu\vs no -;igns 

 of being hirsute and lias much .-oars'-i- -tri:ttion<. 



Habitat Cuesta Pass, Santa Lucia Mts., California, collected by 

 Mr. Harold Hannibal. Cotype in coll. A. N. S. P. 



Both species will be figured on a future plate. 



