SELENITES. 207 



subtriangular, often thickened, as well as the parietal callus in 

 the adult and chestnut-tinged. Diam. 12-15 mill. 



Canyon Creek, Trinity Co., and San Diego, Cat. 

 Smaller, flatter, smoother than H. sportella, with more triangu- 

 lar aperture. Ancey has named a variety SIMPLICILABRIS. 



S. HEMPHILLI, W. G. Binney, PI. 61, figs. 1, 2. 



Umbilicus moderate, light greenish yellow, gloss}', thin, like 

 Hyalinia, irregularly impressed-striate, but without any trace of 

 revolving lines ; whorls five, moderately increasing, the last a 

 little flattened above at the aperture. Diam. 12-14 mill. 



Washington Territory. 

 S. BELCHERI, Pfr. PL 61, fig. 2 a. 



Moderately umbilicated, yellowish, glossy, thin, closely striate 

 above, smooth below, without revolving striae ; whorls 5, moder- 

 ately increasing, the last a little flattened above at the aperture, 

 base subplanulate. Diam. 8'3 mill. 



^^^^j^f Hob. unknown. 



Dr. J. G. Cooper (Calif. Proc., 254, 1885) thinks this may = 

 S. Hemphiili. The figure in Reeve, which I copy, is not stated 

 to be enlarged, yet it represents a shell much larger than the 

 above species ; perhaps it has not been correctly identified. 



* 

 * * 



S. ANDIUM, Phil. PI. 61, figs. 3-5. 



Widely umbilicated, depressed, rather solid, smooth, shining, 

 with close impressed fine growth-striae and minute revolving 

 lines, greenish yellow, occasionally strigate with chestnut-yellow ; 

 whorls 5, suture deep, last whorl scarcely flattened above at the 

 aperture. Diam. 31 mill. 



Andes of Chili. 

 S. EUSPIRA, Pfr. PI. 61, fig. 6. 



Widely umbilicated, discoidal, rather solid, arcuately striate 

 with slight irregular revolving lines, shining, olivaceous orange 

 color; whorls 4J, moderately increasing, suture well impressed. 



Diam. 26 mill. 



Venezuela. 

 S. PAUCISPIRA, Poey. PI. 61, figs. 7-9. 



Widely umbilicated, subdiscoidal, thin, pellucid, polished, 

 striulate, yellowish white ; whorls 4, rapidly increasing, the last 



