PARTULINA, MAUL 59 



fleshy brown, darkest at the base, the aperture flesh-colored 

 within. The band below the periphery is sometimes very 

 narrow less than 1 mm. wide. I think it doubtfully distinct 

 from the var. b of eburnea. Figured from cotypes. 



30. P. NIVEA (Baldwin). PI. 12, fig. 8. 



The shell is sinistral, subperforate, acutely conic, thin but 

 moderately strong, glossy, snow-white with a brownish-yellow 

 band below the periphery. Growth-striae distinct but fine and 

 irregular; spiral striation almost effaced on the last whorl, more 

 distinct above. The spire is a little attenuated near the acute 

 apex; whorls but slightly convex, the suture not deep, margined 

 below. Last whorl a little swollen just below the suture, then 

 flattened, often having a peripheral angle weakly sketched in 

 front of the aperture; periphery very convex; base not very con- 

 vex. The aperture is oblique, white within, with a rather 

 strong rib within the lip, which is a little expanded. Columellar 

 lamella white, rather strong and oblique. 



Length 24, diam. 14 mm. ; 6-J whorls. 



Length 23, diam. 12 mm.; 6^ whorls. 



''Animal when extended in motion longer than the shell. 

 Mantle densely black, with minute brown flecks and a broad 

 yellowish band encircling the outer edge. Tentacles and supe- 

 rior portion of foot brown with a slight slate tinge. Under por- 

 tion of foot light brown. Front above covered with light granu- 

 lation ' ( Baldwin ) . 



East Maui: Makawao to Huelo (Baldwin). 



Achatinella nivea BALDWIN, Proc. A. N. S. Phila., 1895, p. 222, 

 pi. 10, f. 19. THWING, Reprint Orig. Descript. Achat., pi. 2, 

 f. 16. 



"I have before me over 500 examples of this species, which 

 are without variety in color or shape' (Baldwin'). It differs 

 from tappaniana by the more acute apex, less attenuated spire, 

 flatter whorls, the last having its greatest convexity lower down, 

 and by the more glossy surface. In A. dolei the upper part of 

 the last whorl is much more convex, and the color differs. De- 

 scribed from the type lot, no. 65691 A. N. S. P. Several other 

 lots seen agree exactly with this one. 



