1 28 THE NAUTILUS. 



NOTE ON THE VARIETIES OF EPIPHRAGMOPHORA MORMONUM. 



BY II. A. PILSBRY. 



Iii treating of this species both Binney and Stearns have com- 

 mented on its variability. In examining the scries in our collection 

 it appears to nic that three well-marked races or subspecies exist, 

 which may be readily distinguished. 



Typical mormonum is large and depressed, pale reddish corneous, 

 often fading to a paler tint on the base ; the brown girdle is conspic- 

 uously darker, and broadly bordered with white above and below. 

 Surface glossy, sculptured with growth-wrinkles only, or if spiral 

 stria 1 are present they are very faint ; apex minutely granulose. 

 Diam. 29—31, alt. 14-15 mm., sometimes smaller. Whorls G. 



Mormon Island, in the American River, Sacramento Co., Cal. 

 (type locality); Tuolumne Co. (Hemphill). 



Binney's figures represent Pf'eiffer's type. 



Var. cahi, n. v. Smaller and less depressed ; dark reddish brown, 

 the peripheral girdle not conspicuously darker, yellow-bordered ; sur- 

 face sculptured with dense minute spiral stria 1 ; whorls 5^ ; diam. 22, 

 alt. 14 mm., or diam. 2(5, alt. 15 mm. Types from Big Trees, Cala- 

 veras co., Cal.; Fred. L. Button, H.Hemphill. 



Much commoner in collections than the pale, glossy typical form. 



Var. butioni, n. v. Color as in var. cola, but shell more depressed, 

 periphery more or less carinated in front, the surface studded with 

 minute prominences which bear rather long golden-brown hairs when 

 unrubbed ; granulation of the apex more strongly developed. Whorls 

 5± Diam. '22-24, alt. llf-12 mm. 



Nassau Valley, Calaveras Co., Button. Redding, Shasta Co.; 

 McGregor. Probably some larger shells collected by Hemphill at 

 Cave City. Tuolumne Co., belong to this variety, hut the specimens 

 before me are iii poor condition. The largest measures 29 mm. diam. 



This variety forms a transition to K. hillebrandi, which is only an- 

 other term in the variation series, as Stearns has already remarked. 



A NEW CALLIOSTOMA FROM FLORIDA. 



BY II I.M.'Y A. PILSBRY. 



Calliostoma Vellei n. sp. 



Shell imperforate, high-conic, moderately solid, white, with a series 

 of -mall, reddish maculae at the periphery of each whorl. Whorls 



