180 



N. CCERULESCENS (Pfeiffer). 



Shell umbilicate, ovate oblong, rather solid, striate. blue-whitish ,- 

 spire elongate, the apex acute ; whorls 7%, a little convex, the last 

 shorter than the spire, deep blue anteriorly, base little attenuated, 

 subcompressed ; columella above profoundly dentate-plicate. Aper- 

 ture subvertical, oblong, black-brown inside; peristome black-brown, 

 the right margin narrowly expanded, columellar margin free, not 

 reflexed. Alt. 31, diam. 12J mill. ; aperture 14 mill, long, 6? wide. 



Andes of Prov. Patas, Peru (Dr. Farris). 



Bulimus ccerulescens PFR., P. Z. S., 1858, p. 257; Malak. Bl.,. 

 1859, p. 39 ; Monogr., vi, p. 53. Bulimulus (Dry mceus') ccerulescens 

 PFR.-CLESS., Nomencl. He). Viv., p. 238. 



Described from a specimen in Cuming's collection, and not yet 

 figured. It is known to me by the original description only, and 

 the systematic position is uncertain . Italics of the above description 

 are my own. 



Var. COLUMNA Pilsbry, n. v. PI. 29, figs. 35, 36, 37. 



Shell deeply rimate, long and narrow, the height nearly three 

 times the greatest diameter, rather thin. Fleshy white, with numer- 

 ous longitudinal brown stripes of varying intensity, being darker at 

 intervals, on the back of the body-whorl becoming diffused and in- 

 distinct, the ground-tint changing to livid blue behind the peristome. 

 Somewhat shining, sculptured with slight wrinkles of growth, which 

 are rather obsoletely and irregularly cut into spiral series of long 

 granules. Spire with decidedly convex lateral outlines and slightly 

 papillar apex ; whorls nearly 8, weakly convex, the last cylindric- 

 oblong, noticeably compressed laterally. 



Aperture oblong, narrow, decidedly less than half the length of 

 shell, somewhat oblique, black-brown within the margins, becoming 

 somewhat lighter and ochraceous deep within ; outer lip hardly ex- 

 panded, its outer portion nearly straight, becoming strongly arcuate 

 toward the upper insertion, basal lip a trifle expanded ; columellar 

 lip vertical, parallel with the outer, dilated. Columella black brown, 

 with a sharp spiral fold deep within (fig. 37). Alt. 33, diam. 11*5, 

 alt. of aperture 14*3, greatest width nearly 7 mill. 



Peru. 



This species had been named " B. ccerulescens Pfr." by Mr. A. D. 

 Brown. Compared with Pfeifier's description of that shell, the 



