THE NAUTILUS. 101 
Lakes (Yarrow); near West Cliff, Custer Co.; Micawber Mine, 
10,000 feet, Custer County; Wales Canon, Pueblo County ; Slate 
Creek, Summit Co.; Buzzard Creek, Mesa Co.; Black Lake Creek, 
Summit Co. ; Chalk Creek, Chaflee Co.; Divide Creek, Garfield Co. ; 
Plateau Creek, Mesa Co.; Kremmling, Grand Co.; near Egeria, 
Routt Co. 
H. arborea torm viridula Ckll. (Seience Gossip, 1889, 257.) 
Horseshoe Bend Gulch, 10,000 ft., Custer Co., and other localities 
in the same district. 
HT. radiatula (Alder). Saguache Co. (Ingersoll); South Park 
(Yarrow). This is electrina Gld., but it may not be viridula Menke. 
Hi. radiatula form radiatula (Alder). Pueblo Co.; Smith’s Park, 
Custer Co.; Mesa Co.; near Cattle Creek, Garfield Co. 
H. radiatula form viridescenti-alba (Jeffreys). Smith’s Park, 
Custer Co.; Mesa Co. 
H. minuscula (Binney). Mountains near Ft. Garland (Yarrow). 
H. (Conulus) fulva var. chersina (Say). White Earth River 
(Ingersoll); South Park (Yarrow); Twin Lakes (Yarrow) ; near 
West Cliff, Custer Co.; Micawber Mine, 10,000 ft., Custer Co. ; 
Pueblo Co.; Kremmling, Grand Co.; near Egeria, Routt Co. ; 
Buzzard Creek, Mesa Co. ; Surface Creek, Delta Co. ; Divide Creek, 
Garfield Co.; Black Lake Creek, Summit Co. #7. chersina seems 
to me a pure synonym of fulva, but Mr. Ancey iegards it as 
probably distinct. 
HELICIDZ:. 
Patula strigosa (Gould). Grand R. (Bimey); Gilpin Gulch 
(H. Prime); Blue River (Yarrow) ; Saguache (Yarrow). 
Patula strigosa form globosula nov. Small, globose, dark above 
periphery with two bands, transverse grooved striz rather well 
marked. Diam. 113, alt. 84 mill. Black Lake Creek, Summit Co. 
The specimen seems immature, but is remarkable as being the only 
form I have seen in Colorado that is nearer to strigosa than Cooperi. 
Ts is doubtless allied to var. Gouldi Hemphill. 
P. strigosa var. Cooperi W. G. Binney. Grand River (Binney) ; 
Blue River Valley (Ingersoll); Gilpin Gulch (H. Prime); Will- 
iams Canon, Manitou (M. E. Cusack); Morrison, Lyons, and St. 
Vrain Canon (A. Eastwood); Gunnison (EK. W. Roper); Middle 
Park and North Park (Ingersoll); near Durango (A. Eastwood) ; 
Micawber Mine, Custer Co.; Kremmling, Grand Co.; Egeria, 
