from Central and South America. 491 



minutely granular ; sutures impressed ; umbilicus broad and 

 deep ; peristome continuous, reflexed ; aperture irregularly 

 auriform, a single broad tooth appearing on the parietal wall 

 and two teeth on basal margin, the inner strong and simple, 

 the outer not so strong and bilid. 



Alt. 13, diam. maj. 29'75 mm. 



Aperture: alt. (including peristome) 10, diam. 14:'5 mm. 



JIah. Chanchamayo, Peru. 



Allied to L. Garbei, Hidalgo, but much larger, more de- 

 pressed, less solid, and more finely granular than that species ; 

 it shows no traces of spiral strite and, moreover, has a wider 

 umbilicus. 



Bulimulua {Drymceus) carandaifiensis, sp. n. (Fig. 4.) 



Shell narrowly perforate, fusiform, white, painted with 

 longitudinal bands of brown varying in shade from pale 

 reddish brown to dark chestnut; whorls 9h, convex, marked 

 with fine longitudinal lines of growth ; sutures well impressed, 

 subcrenulate; aperture inversely auriform ; peristome simple; 

 columella descending obliquely, reflexed above, thus partly 

 concealing the umbilicus. 



Alt. 35, diam. maj. 14 mm. 



Aperture : alt. 14, diam. 6 mm. 



Hab. Carandaiti, province of Cordillera, Bolivia, 1000 

 metres. 



BuUmuIus (DrymcBus) chacoensis, sp. n. (Fig. 5.) 



Shell narrowly perforate, subulately fusiform, cream- 

 coloured, painted with irregular longitudinal bands varying 

 in breadth and in shade from ])ale brownish horn-colour to 

 dark chestnut ; whorls 9, flatfish, smooth ; sutures impressed; 

 aperture elongately oval ; peristome simple, acute; columella 

 descending somewhat obliquely and reflexed over the narrow 

 umbilicus. 



Alt. 30, diam. maj. 9'0 mm. 



Aperture: alt. l()'7o, diam. 3 mm. 



J Jab. To the north of the Kio Pilcoinayo, Chaco, Bolivia, 

 600 metres. 



Btilimuhis {Drynueus) nigroumbilicatus , sp. n. (Fig. 6.) 



Shell subperforate, fusiform, yellowish white, painted with 

 longitudinal, arcuate, deep brown and blackish bands, 

 Tmibilical area deep blackish brown ; whorls 8, rather flat, 

 marked with lines of growth and fine, wavy, spiral strire, (he 



32* 



