1902.] NATURAL SCIENCES OF PHILADELPHIA. 511 



this year, in Indian Territory, Texas, iNew Mexipo and Arizona. 

 In the Huachuca mountains, Conservatory caiion, Ariz,, living 

 specimens of Helix levettei of Bland were taken. They have been 

 dissected by Mr. Vanatta, and prove to belong to the genus Ash- 

 munella, having the genitalia characteristic of that group. The 

 following species were also taken in Arizona : 



Sonorella rowelli (Newc. ). Patagonia mountains and Sanford. 



Sonorella granulatissima Pils. Spring canon. Ft. Huachuca, 

 Huachuca mountains. 



Pyramidula striatella (Anth.). Huachuca mountains. 



Vitrea indentata (Say). Conservatory caiion, Huachuca. moun- 

 tains and Patagonia mountains. 



^^ Pyramidula ^^ scrigosa huachucana n. subsp. Conservatory 

 caiion, Huachuca mountains. Shell with the general contour of 

 typical strigosa, livid, fleshy-corneous, mottled with white, which 

 may predominate beneath ; a narrow brown or purple-brown belt 

 revolves a short distance below the subangular periphery. Nepi- 

 onic whorls spirally striated. Umbilicus broadly open. Alt. 10, 

 diam. 21^ mm., width of umbilicus 7 mm. 



Four or five shells out of about twenty -five collected are nearly 

 uniform corneous brown. The specimens were received alive, and 

 it apjieared at once that the species is no Pyramidula, but a mem- 

 ber of the Helicidse. The P. strigosa series of Helices constitutes 

 a new genus of Helicidce, having no afftnity to the Patuloid snails, 

 but apparently is a much modified member of the Belogona Eua- 

 denia. The Eastern P. solitaria (Say), with its northwestern dark 

 race, is a true Pyramidula, in spite of its resemblance to some of 

 the strigosa gi'oup. 



In El Paso county, Tex., Mr. Ferriss found Bulimulus dealbatus 

 pasonis Pils. and Holospira roemeri (Pfr. ), and at Colorado City, 

 Mitchell county, Tex,, were found Polygyra texasiana (Moric. ), 

 Polygyra texasensls Pils. and Succinea luteola Gld. 



A new form of Polygyra, intermediate boiween P. indianormn 

 Pils, and P. roemeri (Pfr. ), was taken in the Indian Territory : 



Polygyra indianormn lioderma. Shell similar in contour to 

 P. roemeri, but always imperforate, with no parietal tooth, the 

 lip narrow, more reflexed and less thickened within, the surface 

 more distinctly finely striate, and with only faint traces of spiral 

 lines. It resembles P. indianorum in the structure of the lip, but 

 lioderma is smaller, less glossy, not so regularly striate, and the 

 umbilical region is less sunken. P. divesta is a much more coarsely 

 and strongly striate shell. Alt. 18, diam. 9 nun. ; whorls 4^. 

 Alt. 17,o, diam. 8.7 mm.; whorls 4i. 



Red Fork, Creek countrv, Indian Territorv. Types No. 83,281, 

 A, N, S. P., collected by Mr, James H. Ferriss, 1902. 



The largest shell of the series taken by ^Ir. Ferriss measures 

 18i mm. diam., and the smallest 16 mm. There is thus but little 



