390 PROCEEDINGS OF THE ACADEMY OF [June, 
SUCCINEA AVARA Say. 
VALLONIA GRACILICOSTA Reinh. 
ce PERSPECTIVA Sterki. 
PUPILLA BLANDI Morse (8). 
‘‘  HEBEs (Anc.) (1). 
SYNGENES (Pils.) (3). 
PUPOIDES MARGINATA (Say). 
se HORDACEA (Gabb). 
BIFIDARIA PROCERA CRISTATA (P. and V.). 
PELLUCIDA HORDEACELLA (Pils.). 
ASHMUNI Sterki. (1). 
PERVERSA Sterki. 
PENTODON (Say). 
TAPPANIANA (C. B. Ad.). 
TUBA P. and F. 
VERTIGO OVATA (Say). 
ce MILIUM Gld. (1). 
LYMN#A PARVA Lea. 
2 BULIMOIDES COCKERELLI P. and F. 
PLANORBIS CARIBEZUS Orb. 
z LIEBMANNI Dkr. 
PARVUS Say. 
ARIZONENSIS Pils. and Ferr.? 
PHYSA VIRGATA Gld. 
AMNICOLA sp. (two dead specimens). 
SPH#®RIUM TRIANGULARE (Say). 
PISIDIUM COMPRESSUM Prime. 
cc 
ce 
ce 
Vertigo milium, Bif. tappaniana and Spherium triangulare (one 
valve) were obtained in 1904, not in 1910. The latter is new to the 
fauna of the United States, but having compared with the type 
specimens, we are satisfied of its identity. 
Part of the specimens we refer to Lymnea parva agree with cotypes 
of L. dalli; but we have been unable to make a satisfactory division 
of the material. 
Columella edentula (Drap.) in the Huachucas——We may add 
here a species accidentally omitted from the Huachuca list published 
in part III, of this series (1910). It was found at Wickersham’s, 
Miller Peak. 
IV. Tue Santa Rita Mountains. 
This fine and well-wooded range forms the eastern boundary of 
the Santa Cruz River Valley. We drove in from Siding No. 4 on the 
Sonora Railroad, camping at Agua Caliente, a large tepid spring 
flowing into an artificial pool at the mouth of the canyon of the 
same name, the elevation about 3,800 feet. Several Sonorella 
4 Planorbis arizonensis, new name for P. edieaas Pilsbry and Ferriss, Proc. 
A. N.S. Phila., 1906, p. 165, not of Sandberger. 
