1915.| NATURAL SCIENCES OF PHILADELPHIA. 347 
Spring Canyon.’ This is above the middle of the west side of the 
-range. The summit here projects as a limestone butte, bounded by 
cliffs on the east, north and west sides. Access was gained to the top 
on the south side. The flat summit is covered with grass, Fouquieria, 
Cylindropuntia and other cacti, Agave, etc. No shells. There is a 
fine outlook, the jagged Organ Mountains silhouetted eastward. 
Around the base of this central summit we found Ashmunella walkert 
and Sonorella by digging in the soil among the rocks, where there was 
shade. We found only seven species of snails in all. 
Sonorella hachitana flora n. subsp. Plate V, figs. 3 to 3c. 
Sonorella hachitana. ... Florida Mountains, Pilsbry, Proc. A. N. 8. 
Phila., 1905, p. 257, Pl. 17, figs. 1-6 (shell), Pl. 20, fig. 12 (genitalia), 
Pl. 23, fig. 20 Gaw). 
The shell is in the average larger than S. hachitana, with less dis- 
tinct white borders along the shoulder band. Penis decidedly 
a SS 
Fig. 6.—A-E, Sonorella hachitana peloncillensis. A, genitalia; B, C, penis- 
papilla and end of same, enlarged; D, E, penis-papilla, two other individuals. 
, G, S.h. flora, terminal ducts and penis-papilla. 
7 This spring is not indicated on the U. 8. G. 8S. Topographic Sheet (Deming 
Quadrangle, edit. of Feb., 1899), and as our visit to these mountains was unfore- 
seen, we did not have the map. From memory we would say this spring is 
opposite Arco del Diablo of the map. Mr. Ferriss had made a flying visit to the 
range a year earlier, collecting ferns and a few snails on the slope facing the 
Little Floridas. 
