LEPTACHATINA, GROUP O. 75 



The bottle in which are the types of this species contains 

 a varied assortment of different species, besides the one de- 

 scribed above. A form, which comes nearest to the descrip- 

 tion, and agrees very closely with some of the shells included 

 in the type lot, is from the district of Lihue. A few of them 

 are nearly equal to Gould's measurements, the majority are 

 slightly larger, and a very few equal or are slightly larger 

 than Pfeiffer's (12.0x4.75 mm.). Small adult specimens 

 from Kipu measure, length 9.2, diam. 4.1, length of ap. 3.2 

 mm. ; the majority from this locality measure : length 10.0, 

 diam. 4.2, length of ap. 3.5 mm. ; a large specimen of this 

 species has the following measurements: length 12.5, diam. 

 5.4, length of aperture 4.8 mm. Most of the shells have a 

 dark reddish band at the suture. 



This species and L. leucochila are very closely related. In 

 the former the whorls are more closely coiled, the suture 

 nearly transverse and scarcely oblique, the surface more 

 closely costate, the last whorl is shorter, more tumid, with a 

 natter base, the aperture is shorter, broader in proportion to 

 its length and the columella has a single fold. 



PI. 12, fig. 5 represents the synonymous A. clara Pfr. 



99. L. TENEBROSA Pease. PI. 7, figs. 25, 26, 29. 



"The shell is imperf orate, elongately turrited, solid, longi- 

 tudinally costate; whorls 8, flatly convex, the last equal to 

 % the length of the shell ; suture simple, subimpressed ; aper- 

 ture small, oval, angulate at the base of the columella; colu- 

 mella callous, erect; columellar fold strong, scarcely promi- 

 nent; lip thickened; blackish, or reddish brown, apex pale. 

 Length 12.0, diam. 5.0 mm." (Pse.) 



Kauai: Kaholuamano (Perkins), Halemanu, Puukapele, 

 Kumuwela, Ekaula (Cooke). 



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

 sol.) ; Journ. de Conchyl., xviii, p. 92. CROSSE, Journ. de 

 Conchyl., xxiii, 1876, pi. 3, fig. 5. SYKES, Fauna Haw., ii, 

 1900, p. ?71. Achatinella (Leptachatina) tenebrosa PFR., 

 Mon. Hel. Viv., viii, p. 248. 



Shells from Puukapele are identical with those of this 



