64 PARTULINA, MAUI. 



convex; the last equal to -^g- of the length; columellar fold 

 strong, white; aperture somewhat oblique, sinuously oval; peri- 

 stome thickened, sometimes slightly expanded and reflected 

 anteriorly; columellar margin dilated, white, unattached; pari- 

 etal margin wanting. Length 20J; breadth 10-f ; length of aper- 

 ture 9 mm. Average weight 5.5 grains ' (Gulick*). 



West Maui: Wailuku, on the alii and other low trees, in 

 damp, elevated regions. E. Bailey. 



" This species differs from A. induta Nob. in its smaller size, 

 more acuminate form, lighter color, and in the polished exterior 

 of some of its varieties. 



" Var. b. More ventricose; aperture nearly semiorbicular. 

 This variety passes into A. induta. 



"Var. c. More elongate. Length 19 J; breadth 9; length of 

 aperture 8 mm. ; average weight 3.50 grains. This variety ap- 

 proaches and passes into A. terebra Newc. The two species are, 

 however, distinctly characterized; the latter being more strongly 

 sculptured, having the aperture more elongately oval, and the 

 suture more distinctly margined. 



' ' Var. d. With black or brown spiral bands. This passes 

 into A. splendida Newc., but is distinguished by its smaller size 

 and stronger columellar fold. Rather rare. 



u Var. e. White. This passes into A. attenuataPL 



li Var. /. Pale ash-color. Passes into A. undosa Nob. 



" Var. g. Pale yellowish brown. Passes into A. crocea Nob.' 

 (Gulick). 



Specimens of Gulick's series (no. 92717 A. N. S. P.) are 

 figured. The un described A. perforata Gulick, according to 

 specimens (no. 57783 A. N. S. P.) is identical with lignaria. 



34. P. FUSOIDEA (Newcomb). PI. 15, figs. 10, 11. 



11 Shell sinistral, rather solid, elongately produced; whorls 6 

 to 7, scarcely rounded (excepting the last), margined above; 

 suture w r ell impressed. Aperture roundly ovate, small; colu- 

 mella very short, robust and twisted; lip simple above, slightly 

 expanded below. Color straw yellow. Length 15, diam. 5J 

 twentieths of an inch ' (Newc. ) . 



East Maui (Newcomb); Haleakala (Thwing). 



