PARTULINA, MOLOKAI. 35 



faint spiral striation. Aperture small, bluish white within, lip 

 slightly expanded, nearly white and well thickened within. 

 Columellar lamella strong, white with a light brown patch at 

 and above its insertion. Length 21 to 21.2, diam. 11.8, aper- 

 ture 9.6 to 10 mm. ; 6f to 7 whorls. 



Molokai: Makakupaia (Baldwin). 



Achatinella mucida BALDWIN, Proc. A. N. S., Phila., 1895, p. 

 222, pi. 10, f. 23. SYKES, Fauna, p. 315. Partulina muc/d 

 BORCHERDING, Zoologica, xix, p. 73, pi. 6, f. 7, 8. 



This small species, described and figured from the types, has 

 a peculiar mildewed or mouldy appearance from having the 

 dark markings overlaid with white. It is very closely related 

 to A. dwightiij but differs by its smaller size and details of col- 

 oration. No form of dwightii has a dark band along the suture 

 below. The figure represents the same shell figured by Bald- 

 win. 



13a. Color-var. macrodon Borcherding. PI. 9, figs. 18, 19, 20. 



Last embryonic whorl zigzag striped; following whorls white 

 with a faint flesh tint, having distinct purple-brown bands, 

 minutely flecked with white, at suture, periphery and umbili- 

 cus. Columellar lamella strongly calloused, projecting hori- 

 zontally. Length 20 to 22, diam. 11.5 to 12, aperture 9.5 to 

 10 mm. ; whorls 6f to 7. 



Makakupaia (Meyer and others). 



Partulina macrodon BORCHERDING, Nachrbl. d. d. Malak. Ges. , 

 1901, p. 56; Zoologica, xix, p. 74, pi. 6, f. 9, 10. 



14. P. DWIGHTI (Newcomb). PL 8, fig. 1 to 5. 



"Shell oblong conical, sinistral, solid, surface covered with 

 longitudinal strire, cut across by very numerous, fine, slightly 

 undulating cross-stria?. Whorls 6, flatly convex, crenulated at 

 the sutures; suture simple, well marked. Aperture ovate; colu- 

 mella broad, short, and slightly twisted; outer lip expanded, 

 subreflected below. Subumbilicated, color a grayish white, 

 with numerous blotches and zigzag markings of brown, more 

 obscure on the last whorl. Aperture and lip of a dingy white. 

 Length 19, width 9^ twentieths of an inch [about 24 X 12 mm.] 

 (Newc. ) 



