HELIX-EULOTA. 219 



H. JOURDYI Morlet. PI. 54, figs. 1, 2, 3. 



Shell moderately globulose, thin, translucid, pale yellow ; having 

 very irregular, transversely oblique rib-like striae. Spire subconqid,_ 

 the apex obtuse ; whorls 6, convex, the first smooth, the last sub- 

 angular at the periphery, the angle disappearing on the last third of 

 the whorl. Aperture half round, the margins not continuous, con- 

 nected by a very thin, shining but inconspicuous deposit of callus ; 

 peristome thick, white andreflexed, the col umellar margin widening 

 at its insertion, partly covering the umbilicus. Interior of the 

 aperture white, its transparence permitting the strise of the exterior 

 to be seen. (Mori). 



Alt. 15, diam. 21 mill. 



Around Lang-son, Dang-son and Chee, Tonquin; very common, 

 (Jourdy). 



Helix jourdyi MORL., Journ. de Conch, xxxiv, p. 75, 269, 1. 12, f. 

 3, 3a (1886). 



A var. minor (fig. 1) is smaller, alt. 13, diam. 17 mill., and more 

 strongly angular at the periphery. 



This species resembles H. bocageana Crosse, but it is smaller, less 

 globose and unicolored, with pure white, thick lip. The spire is less 

 elevated and the umbilicus larger than in H. mabillei Crosse. 



H. SUFFODIENS Boettger. PL 54, figs. 94, 95, 96. 



Allied to H. fodiens and H. carinifera, but differing in having 

 the umbilicus wider, whorls more slowly increasing, aperture 

 smaller, the columella more perpendicular. 



Shell moderately umbilicated, the umbilicus deep, i-y the 

 width of the shell ; conoid-globose, thin, diaphanous, pale buff-horn 

 colored, having an oily sheen. Spire rather elevated, conic, the 

 sides slightly convex ; apex somewhat acute. Whorls 5, slowly 

 increasing, a little convex, separated by an impressed suture, sub- 

 fasciculately striatulate and all over minutely but very distinctly 

 irregularly granulated ; the last whorl distinctly angulated at the 

 periphery the angle disappearing toward the aperture ; subangulated 

 around the umbilicus, slowly descending at the aperture. Aperture a 

 little oblique, truncate-circular, subangled below ; peristome simple, 

 acute, slightly expanded, hardly paler than the shell, the columella 

 concave but perpendicular, columellar margin triangularly dilated, 

 protracted, subreflexed. (Bttg.) 



Alt. 1(H, diam. 13 mill.; apert. alt. 7, width 7J mill. 



Gorontalo, in Menado, northern Celebes. 



