b BULIMULUS-PLECTOSTYLUS. 



Aperture quite oblique, over half the alt. of shell, within white and 

 marked like the outside; peristorae simple, the upper termination 

 of the outer lip extending far over the whorl. Columella concave 

 below, nearly straight above, white, its thin edge reflexed and ap- 

 pressed. 



Alt. 44, diam. 22 mill. 



Alt. 37, diam. 19 mill. 



Valleys north of Coquimbo, Chili (Bridges). 



Succinea variegata PFR., P. Z. IS., 1842, p. 187 ; Symbolse, ii, p. 

 56. Bulimus variegatus PFR., Zeitschr. f. Mai., 1844, p. 184; Mon- 

 ogr., ii, p. 146; Conchyl. Cab., p. 213, pi. 60, f. 3, 4. HUPE in 

 Gay, Hist. Chile, viii, p. 102, pi. 3, f. 1, la. Bulimus rupicolus 

 REEVE, Conch. Icon., pi. 16, f. 93 (1848). 



Although rather slender in contour, like B. reflexus, coquimbensis 

 and perelegans y the B. variegatus is more allied to B. broderipii and 

 coturnix in having the upper termination of the outer lip produced 

 as far forward across the whorl as the greatest convexity of the 

 ventral surface of the shell. This is not the case with B. coquim- 

 bensis and its allies, nor with B. cliilensis, which, moreover, is more 

 coarsely granulose. 



Aside from these considerations of contour, which are perfectly 

 diagnostic, B. variegatus seems intermediate between reflexus and 

 broderipii in color-pattern, but is yellower than either. The close 

 relationship with B. broderipii is also attested by certain shells which 

 depart from the normal pattern and assume much the same vermic- 

 ulate blotches and scattered dots of certain forms of broderipii, while 

 retaining the yellow ground-color and slenderer form of variegatus, 



B. MOESTAI (Dunker). Unfigured. 



Shell covered subrimate, ovate-conic, rather thin, having delicate 

 costulse, granulose throughout ; buff, under a corneous, little shining 

 cuticle, marked with irregular chestnut streaks. Whorls 6, a little 

 convex, separated by a distinct suture; spire a little convexly 

 conic, the apex obtuse ; columella white, nearly straight. Aperture 

 oval; peristome simple. Alt. 30, diam. 15 mill. ; aperture 14i mill, 

 long, 8 wide (Dkr.*). 



Cerro Bravo, valley of Copiapo, Chili (F. Moesta), 



Bulimus moestai DKR., Malak. Bl., xi, 1864, p. 156. PFR., Mon- 

 ogr., vi, p. 90. 



