38 HELIX-PAPUINA. 



epidermis, which is readily deciduous. The measurements given by 



Canefri are as follows : 



Alt. 25, diam. maj. 37, min. 29 ; Alt. 21, diam. maj. 35, min. 27 ; 



Alt. 18, diam. maj. 26, min. 21 mill. 



Var. a. Shell whitish-gray, peristome white. (Z)A.) 

 Var. b. Shell whitish, girdled by a red line. (Dh.) 

 Var. c. Shell reddish-chestnut, with a broad blackish-brown per- 

 ipheral band. (Z)/i.) 



Var. d. Shell large, whorls more convex, spire more elevated, 



apex pallid, concolored; no peripheral zone. (Tapp.*) 



Var. e. Shells smaller, more globose, aperture less ovate, umbilicus 



more open, columellar lip less dilated, less covering the umbilicus ; 



no peripheral band. (Tapp.) 



H. LABIUM Ferussac. PI. 12, figs. 18, 19, 25, 26, 27. 



Narrowly umbilicate, depressed, solid; spire low-conic, apex 

 acute ; whorls 5, the last obtusely angular at the periphery, not 

 descending in front ; surface shining, the growth-striae fine, light ; 

 color light brown, lighter above, the periphery girdled with brown ; 

 Aperture transverse, wide, lip white, broadly reflexed all around, 

 basal lip straightened, dilated at the insertion, partially concealing 

 the deep, narrow umbilicus. 



Alt. 20, greater diam. 33, lesser 25 mill. 



Port Dorey, Northern New Guinea ; Island of Sorong. 



H. labium FER., Hist., t. 64, f. 6. PFR., Mon. Hel. Viv. v, p. 

 336. DOHRN in Contin. Conchyl. Cab. p. 570, t. 168, f. 10, 11. 

 TAPPARONE CANEFRI, Ann. Mus. Civ. Genov. xix, p. 140, 1883. 



The peristome is very broadly reflexed, and is somewhat angled 

 at the outer extremity. Wallace mentions a variety having no 

 peripheral girdle, and paler in color. The specimens before me are 

 larger than Ferussac's figures, and somewhat less angular. They 

 correspond well with Dohrn's figures. There is considerable varia- 

 tion in the degree of covering of the umbilicus. 



This species has a more convex base than H. lituus and its other 

 allies. 



H. PSEUDOLABIUM Pfeiffer. PL 12, figs. 20, 21. 



Narrowly umbilicated, conoid, obliquely striatulate, shining, thin, 

 pale tawny, with a red girdle. Spire broad-conoidal, apex acute; 

 whorls 6, slightly convex, the last rather depressed, the base, nearly 

 flat; columella short, oblique. Aperture angular-lunar, whitish in- 



