from Central and South America. 491 



minutely granular ; sutures impressed ; umbilicus broarl and 

 deep ; peristome continuous, rcfloxed ; aperture irregularly 

 auriform, a single broad tootli appearing on tlie parietal wall 

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

 the outer not so strong and liifid. 



Alt. 13, diam. maj. 29'7o mm. 



Aperture: alt. (including peristome) 10, diam. 1-1'5 mm. 



llab. Chanchamayo, Peru. 



Allied to L. Garheij Ilid.ilgo, but mucli larger, more de- 

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

 It shows no traces of spiral striae and, moreover, has a wider 

 umbilicus. 



Bulimulus (Drj/mceus) carandai'densis, sp. n. (Fig. 4.) 



Shell narrowly perforate, fusiform, white, painted with 

 longitudinal band:^ of brown varying in shade from pale 



with fine longitudinal lines of growth ; sutures wtdl impre 

 subcrenulate; aperture inversely auriform ; peristome simple; 

 columella descending obliquely, reflexed ab(>ve, thus partly 

 concealing the umbilicus. 



Alt. 35, diam. maj. 14 mm. 



Aperture : alt. 14, diam. 6 mm. 



Ilab. Carandaiti, province of Cordillera, Bolivia, 1000 

 metres. 



Bulimulus (^DrymcBus) chacoensis, sp. n. (Fig. 5.) 



Shell narrowly perforate, subulateiy fusiform, cream- 

 coloured, painted with irregular longitudinal bands varying 

 in breadth and in shade from pale brownish horn-colour to 

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

 aperture elongately oval ; peristome simple, acute; colunulla 

 descending somewhat obliquely and redexed over the narrow 

 umbilicus. 



Alt. 30, diam. maj. 9'5 mm. 



Aperture: alt. 10'75, diam. 3 mm. 



JIah. To the north of the Kio Tilcomayo, Chaco, Bolivia, 

 600 metres. 



Bulimulus (Dri/ma;us) nujrouml'ilicatus, sp. n. (Fifr. 6.) 



Shell subperforate, fusiform, yellowish white, painted with 

 longitudinal, arcuate, deep brown and blackish bands, 

 umbilical area deep blackish brown ; whoils 8, rather flat, 

 marked with lines of growth and fine, wavy, spiral striiv, the 



32' 



