BULIMULUS-BOSTR YX-LISSOACME. 1 69 



ornamented with continuous or interrupted bauds. Spire conic, 

 rather acute, roseate or brownish above. Whorls 7, slightly convex, 

 the last slightly shorter than the spire, slightly compressed around 

 the umbilicus, and marked with a wide brown band. 



Aperture little oblique, oval, the peristome simple, thin, right 

 margin arcuate, slightly expanded, columellar margin dilated, 

 spreading. Alt. 31, diarn. 14 mill.; aperture 15 mill, long, 9 wide. 

 (Morel.}. 



Valley of Santa Anna, eastern slope of the Cordillera, Peru (An- 

 grand). 



Bulimus virgultorum MOREL., Ser. Conch., iii, p. 194, pi. 10, f. 1. 

 PFR., Monogr., vi, p. 134. 



The prevailing color-patterns are : (a) unicolored whitish or rose- 

 ate. (b~) Whitish, with one or many interrupted or continuous bands. 

 (c) Pale buff, obliquely striate with brown, (d) Pale buff, marbled 

 and latticed with chestnut. 



The interior of the aperture is a pale fallow tint ; and on the shell 

 may be seen some vestiges of the punctation observed in several 

 Peruvian species. The bands vary from none to eight ; the one be- 

 low the periphery and passing into the aperture, and that bordering 

 the umbilicus, ordinarily are continuous, the latter being the most 

 persistant. The unicolored rose variety is rare. It seems to be allied 

 to B. pictus Pfr. 



This may belong to Drymceus. 



B. SCALARIFORMIS Broderip. PI. 47, figs. 79, 80, 81. 



Shell umbilicated, ovate-pyramidal, rather thin; opaque; uni- 

 colored white, or whitish with dull brown spiral bands, or dull brown 

 with a darker umbilical crescent and whitish strise. Surface luster- 

 less, closely sculptured iclth regular longitudinal riblets as wide as 

 their intervals, except on several earlier whorls. Spire conic, the 

 apex obtuse, smooth, clear whitish, corneous or orange. Whorls 5- 

 5, very convex, separated by deep sutures. Umbilicus rounded, 

 generally rather large. 



Aperture ovate, less than half the length of the shell, brownish or 

 white within. Terminations of peristome somewhat approaching; 

 columella much less curved than outer lip ; columellar lip expanded 

 above. 



Alt. 12, diam. 7 ; alt. of aperture 5'5 mill. 



Alt. 11, diam. 7'6 ; alt. of aperture 4'8 mill. 



Alt. 10, diam. 5 ; alt. of aperture 4 mill. 



Arcon (Cuming) ; Lima (Orb., Paz) ; Chancay (Rev. J. M. Thomp- 

 son), Peru. 



