LEPTACHATINA, GROUP A. 7 



vex, increasing regularly, the last tapering slowly to the base. 

 Aperture rather large, subovate, whitish within, hardly 

 oblique, perpendicular, ascending slightly in front. Colu- 

 mella very slightly twisted, with an oblique rather weak fold 

 and a slight thickening along its face. Outer lip very 

 slightly thickened within, regularly arcuate ; columellar mar- 

 gin slightly thickened, appressed, adnate. Length 10.5, diam. 

 4.8, length of aperture 4.2 mm. 



Kauai: Kapaa (Baldwin). 



A very distinct species, with no closely related species 

 from the island of Kauai. L. acuminata, Gould, may pos- 

 sibly prove to be a distant relative. It is, however, much 

 narrower in proportion to its length, with a narrower and 

 more elongate aperture. 



3. L. ANTIQUA Pease. PI. 8, figs. 60-62. 



' The shell is subf ossil, oblong subcylindrical, solid, scarcely 

 rimate, longitudinally faintly striate; whorls 7, flatly con- 

 vex, narrowly margined at the suture; spire somewhat ob- 

 tuse; aperture oblong oval; columella obliquely truncate; 

 columellar fold obsolete. Length 9.0, diam. 3.5 mm." (Pse.) 



Kauai (Pease) : Koloa beach (Judd). 



Leptachatina antiqua PEASE, P. Z. S. L. 1869, p. 651 (nom. 

 sol.) ; Journ. de Conchyl., XVIII, 1870, p. 94. CROSSE, 

 Journ. de Conchyl., 1876, pi. 3, fig. 6. Acliatinella (Lep- 

 tachatina) antiqua PFR., Mon. Hel. Viv., viii, p. 247. 



The shells collected by Mr. Judd (PI. 8, figs. 60, 61) agree 

 fairly well with Pease's description. One of his shells meas- 

 ures, length 9.0, diam. 3.8, length of aperture 3.7 mm. A 

 larger form of this species was found in the same locality. 

 It agrees in all its characters except size, a specimen meas- 

 uring: length 12.0, diam. 5.3, length of aperture 5.4 mm: 

 This species may be distantly related to L. lav-is Pse. 

 Pease's original figure is copied, fig. 62. 



4. L. LAEVIS (Pease). PI. 8, figs. 56, 57. 



'The shell is ovately oblong, imperf orate, dextral, some- 

 what thin, smooth, glossy, brown; whorls 7, somewhat flat, 



