COCHLOSTYLA-PACHYSPH^RA. 173 



having a narrow white band below the suture bordered by a bright 

 yellow band, a supra-peripheral chestnut line, and a dark columellar 

 area ; the lip edged with dark brown. 



The surface is smooth, sometimes slightly malleated. Whorls 4J 

 to 5, the last deflexed at the aperture and decidedly constricted be- 

 hind the lip. The aperture is half-round, white inside ; lip very 

 strongly thickened within, narrowly reflexed, white, edged with deep 

 brown ; columella heavy, white. 



Alt. 25, diam. 23* mill. 



Alt. 20, diam. 19 mill. 



Alt. 23J, diam. 24 mill. * 



Ylocos, north-ivestern Luzon. 



H. sphcerica SOWB., P. Z. S. 1841, p. 26. PFR., Monogr. i, p. 225 ; 

 Conchyl. Cab., t. 39, f. 3, 4. RVE., f. 104. Cochlostyla sphcerica 

 SEMPER, Phil. Archip., Landmoll., p. 198. 



One of the most attractive Helices. Semper says that the brown 

 line at the periphery is wanting in one specimen among 19 examined. 

 I have seen many more than this, but in none of them was it lack- 

 ing. The dark oblique streaks are rarely so prominent as in fig. 

 82. 

 C. BALTEATA Sowerby. PL 39, figs. 89, 90, 91, 92, 93. 



Imperforate, solid, globose or globose-turbinate ; ground-color 

 pale yellow ; suture bordered by a grass-green band, sometimes 

 split into two ; on the middle of the upper surface there is a wide 

 band of olive or purplish, becoming reddish on the earlier whorls, 

 this band often bordered below by a supra-peripheral line or zone of 

 darker color ; columellar tract grass-green. Columella red. Apex 

 pink, rarely white. 



The surface is smooth. Whorls 5, the last somewhat deflexed in 

 front, slightly constricted behind the lip. , Aperture half round, 

 oblique ; lip somewhat thickened within, very narrowly expanded, 

 edged w r ith purple-brown. Columella wide, pinkish or purplish- 

 brown. 



Alt. 22, greater diam. 20* mill. 



Alt. 20, greater diam. 19 mill. 



Alt. 19, greater diam. 21 mill. (pi. 39, figs. 91, 92.) 



Provinces of South and North Ylocos, north-western Luzon. 



H. balteata SOWB., P. Z. S. 1840, p. 136. PFR., Symb. ii, p. 23 ; 

 Conchyl. Cab., p. 302, t. 51, f. 9-12; Monogr. i, p. 226. RVE., 



