308 AMASTRA, MAUI. 



chestnut epidermis which is partly worn off ; spire turrite, 

 the apex mucronate and beautifully plicatulate; whorls 7, 

 the upper flat, following convex, the last inflated, tapering 

 basally, more than half the total length. Columella straight, 

 provided with a spiral callus. Aperture small, oval, sub- 

 angular below; peristome simple, unexpanded; columellar 

 margin very narrowly reflexed. Length 22, diam. 10 mm. 

 Sandwich Islands " (Morelet} . 



103. A. MONTANA Baldwin. PI. 43, figs. 18, 19. 



The shell is imperf orate, ovate-conic, thin; spire straightly 

 conic, a little concave near the apex; covered (except in front 

 of the aperture) with a blackish-brown cuticle copiously 

 streaked or zigzag striped with yellowish. After the smooth 

 initial half-whorl, the embryo is coarsely ribbed, the ribs pro- 

 tractive, terminating in a carina above the suture; on the 

 next whorl they are much finer, becoming short and disap- 

 pearing. Neanic and last whorls rather finely marked with 

 growth-lines. Above the suture a peripheral carina may 

 usually be traced as far as and sometimes upon the penulti- 

 mate whorl. The whorls of the spire are nearly flat. Last 

 whorl large, inflated. Aperture whitish within, the lip thin, 

 acute. Columellar fold median, oblique and rather thin. 



Fig. 18. Length 15, diam. 9.1, apert, 7.9 mm. ; 6y 2 whorls. 



Length 14, diam. 8.5, apert. 7.9 mm. ; 5% whorls. 



Length 14, diam. 9.5 mm. (Baldwin}. 



" Animal in motion as long as the shell. Mantle dark- 

 brown with a light-brown border. Foot and tentacles almost 

 black. Head above coarsely granulated " (Baldwin}. 



West Maui: Mt. Kukui, 6000 ft, elevation (Baldwin}. 



Amastra montana BALDWIN, Nautilus xix, April, 1906, p. 

 136. 



This species was found in company with Laminella alex- 

 andri Newc., at an altitude uncongenial to most Achatinellid 

 species " (Baldwin}. It is thinner, darker and more inflated 

 than A. assimilis Newc. Fig. 18 was drawn from one of the 

 type lot, received from Baldwin. This individual is streaked 

 with yellow but has no zigzag markings. Other shells of the 



