STROPHOCIIEILUS. 125 



by Dr. von Ihering. It will probably be found living in the same 

 region. The apical sculpture is that of the S. oblongus group. Some 

 specimens are so globose as to suggest the European Helix aspersa. 

 (Pits., Proc. A. N. S., Phila., 1900, p. 391.) 



S. LORENTZIANUS (Doering). 



Shell subimperforate, ovate, rather solid, somewhat thick, scarcely 

 shining, whitish-fulvous, wrinkle-striate, banded at the suture ; apex 

 a little obtuse. Whorls 5^ to 6, a little convex, the first regularly 

 and closely costulate-striate, the last ventricose, stria te-wrinkled, 

 about five-ninths the total length. Aperture ovate-oblong, glossy 

 pale-reddish inside ; peristome thickened, narrowly-expanded, a little 

 reflexed, of an intense rose-purple color, the margins joined by a 

 spreading, glossy, rose-purple callus; columellar margin dilated, 

 appressed. (Doer.) 



Var. a. Large, thick ; length 95-100, diam. 64-66, aperture with 

 peristome 57-58 mill, long, 42-43 wide. 



Var. b. Small, ovate-oblong, thin, of an intense fulvous color ; 

 length 75, diam. 45, apert. with perist. 42 mill, long, 33 wide. 



Argentina: Sierras of Tucuman, Salta and Jujuy (Lorentz, Hier- 

 onymus and Stelzner). 



Borus lorentzianus DOER., Periodico Zoologico ii, pt. 4, p. 255 

 (1877). 



This species differs from S. ovatus by the slightly reflexed peri- 

 stome, subsolute in periphery, and the intense rose-purple callus ; 

 from S. oblongus by the more swollen shell, more obtuse apex, slightly 

 reflexed peristome and whitish-zoned suture ; from S. bronni by the 

 sculpture, purple callus and folded columella ; from S. capillaceus 

 by the sculpture and whitish-bordered suture. The var. minor is 

 found in company with the large specimens, and as no intermediate 

 forms have been received, it may be a distinct species. 



This species is known to me by the above description only. It 

 seems to belong to the S. oblongus group, and is probably related to 

 S. paranaguensis. 



S. LUTESCENS (King). Vol. x, p. 36. 



Var. cordillerce Doering. Shell ovate, intense buff, obsoletely 

 striate, rather smooth ; suture subcrenulate ; peristome narrowly 

 reflexed, of an intense orange color. Length 38, diam. 25, length of 

 aperture with peristome 20, width 15 mill. (Doer.). 



Argentina : Sierra de Cordova^ extremely rare (Doering). 



