PARTULINA, MAUI. 75 



Length 16.8, diam. 11, aperture 9 mm. ; 5>3 whorls. 



Length 18, diam. 11, aperture 9 mm. ; 5*/2 whorls. 



While nattii is very closely related to porcellana, I have 

 seen no intergrading specimens and therefore allow it to 

 stand as a species. 



A variety in the C. M. Cooke collection from Honomanu 

 (Baldwin) has light ochraceous bands on a gamboge ground 

 and no snowy sutural band. 



41. P. ANCEYANA (Baldwin). PI. 20, figs. 12, 13, 14. 



Shell dextral, imperforate, rather thin, oblong-conic, the 

 summit obtuse. Embryonic shell chestnut, fading to, or banded.; 

 with white above ; following whorls chestnut with a white line 

 revolving a short distance below the suture, and on the penult, 

 whorl another above the suture; last whorl rich yellowish- 

 chestnut with a white line near the suture, another at the 

 periphery, the latter bordered below with a yellow band. 

 Another yellow band, usually wider, occupies the base, leaving 

 a small dark patch around the axis. The surface is glossy, 

 with sculpture of fine crenulated spirals throughout. Aper- 

 ture slightly oblique, brown-banded within ; lip not expanded, 

 narrowly thickened within. Columellar fold brown or brown 

 and white. 



Length 14.5, diam. 8.5 mm. ; 5 whorls. 



Length 14, diam. 9 mm. 



Length 15.5, diam. 8.3 mm. 



" Animal when extended in motion longer than the shell. 

 Mantle light-brown mottled with black, outer edge encircled 

 with an interrupted orange band. Foot above and below a 

 very light brown, superior portion with a slate tinge, posterior 

 portion tapering and sometimes with a yellowish tinge. Ten- 

 tacles long, light-slate. Head above minutely granulated " 

 (Baldwin). 



East Maui : Makawao, in forests of the exterior slope of the 

 extinct Haleakala crater at an altitude of 4,000 ft., living on 

 foliage near the tops of the trees (Baldwin). Type no. 65707 

 A. N. S. P. 



Achatinella anceyana Baldwin, Proc. A. N. S. Phila., 1895, 



