19 



upon the intruded body whorl, and extending into the depth of 

 the shell, — and five equidistant teeth within the external lip, which 

 is simple and thin. Diameter, -^-^ inch. Hob. Oahu. 



Helix subrutila. Shell orbicular, depressed, pellucid, smooth, 

 shining, yellowish, imperforate, subcarinate ; whorls five, slightly 

 convex ; aperture semilunate, slightly gibbous, lip simple, thin. 

 Diameter, -^^ to y%- inch. Hah. Oahu. 



Helix tiara. Shell low turbinate, yellowish, with dark brown 

 zig-zag lines crossing the whorls, when young and fresh ; umbi- 

 licus wide and deep ; incremental striae rather coarse ; whorls five 

 to six, convex ; aperture circular, modified by the last whorl ; lip 

 simple, acute. Diameter, about ^ inch. Hah. Kauai. 



Helix jugosa. Shell depressed, subdiscoidal, reddish brown ; 

 umbilicus broad and deep ; whorls five, convex, with numerous, 

 raised, incremental lines ; aperture circular, modified by the last 

 whorl, with a thin, elevated lamina, extending into the depth of 

 the shell ; lip simple, thin. Diameter, /^ inch. Hah. Waioli. 



Helicina laciniosa. Shell orbicular, convex, reddish brown, 

 interspersed with irregular light spots ; whorls five, more or less 

 flattened, with two or three raised lines, revolving over the mid- 

 dle of the outer whorl ; aperture semilunar ; lip simple, acute. 

 Diameter, /g- inch. Hah. Oahu. 



Helicina rotelloidea. Shell orbicular, low conical, convex 

 at the base, sometimes reddish brown, sometimes greenish, with 

 obscure light spots, surface smooth ; whorls about 3^, convex ; 

 aperture semilunate ; lip simple, acute. Diameter, from y^ to 

 ■^^ inch. Hah. Oahu. 



Pupa admodesta. Shell minute, ovate, greenish brown ; 

 whorls 3^, convex ; incremental strise very fine ; aperture circu- 

 lar, unarmed ; lip simple, thin, slightly inflected ; umbilicus small. 

 Length, ^-^ inch, diameter, ^\j inch. Hah. Oahu. 



Bulimus armatus. Shell sinistral, rarely dextral, conical, 

 brown, or yellowish, sometimes with a light, revolving band be- 

 low the suture, perforate ; whorls five, convex ; aperture oblong- 

 ovate, with a thin, flexuous, lamellated tooth on the transverse 

 lip, and a small tooth or fold on the columellar lip ; outer lip 

 thin, slightly reflected. Length, \ inch, diameter, \ inch. Hah. 

 Hawaii. 



BuLiMUS PUMICATUS. Shell dextral, conical, polished, glossy, 

 light horn color, imperforate ; whorls seven, slightly convex ; 



