NEWCOMBIA. 13 



9. N. PFEIFFERI (Newcomb). PL 2, figs. 4, 8, 14. 



"Shell sinistral, acuminate, turrited, with the surface irregu- 

 larly cut up into furrows, ridges and tubercles by deep longi- 

 tudinal sulcations crossed by strongly developed transverse 

 striae. Color brown, with white longitudinal lines on the upper 

 whorls. Whorls 6, flatly convex; suture deep. Aperture 

 oblong-ovate. Columella plain and smooth; outer lip simple. 

 Length .65, diam. .25 inch' (Newc.). 



Molokai (Newcomb): Puukolekole (Meyer); Kaluaaha 

 (Baldwin). 



Achatinella pfeifferi NEWCOMB, Ann. Lye. Nat. Hist, of New 

 York vi, p. 25 (May, 1853); P. Z. S., 1853, p. 150, pi. 24, f. 

 58 (1854). Newcombia pfeifferi Newc., SYKES, Fauna Hawaii- 

 ensis, p. 332. Bulimus newcombianus PFR. , Monographia iii, p. 

 414 (1853); P. Z. S., 1851, p. 261 (December, 1853). New- 

 combia newcombiana PFR., Malak. Bl. i, 1854, p. 119. PEASE, 

 P. Z. S., 1869, p. 649. A. newcombiana THWING, Reprint Orig. 

 Descript. Achat. , 1907, pi. 3, f. 9. N. neivcombia Pfr., HART- 

 MAN, Proc. A. N. S. Phila., 1888, p. 41. BORCHERDIXG, 

 Zoologica, p. 98, pi. 9, f. 5, 56. 



Very distinct by the coarse longitudinal folds and rude spirals 

 of the last two whorls. 



The initial half whorl is smooth; the next whorl has about 8 

 close, smooth spirals; on the following whorl these become 

 more widely spaced, and a color pattern of broad brown and 

 white longitudinal stripes appears, continuing to the end of the 

 embryonic stage, which comprises 3J- whorls. Weak folds then 

 begin on the neanic stage, gradually becoming stronger, the 

 color being indistinctly marbled with white on a dark brown 

 ground. The last two whorls are brown with the high points 

 of the ribs yellowish; the sculpture increasing in strength. 

 There is a minute sculpture of irregular, crenulated striae over 

 the coarser ribs and cords. The whorls are strongly convex. 



Length 15, diam. 6 mm.; 5^ whorls. 



Length 17, diam. 6 mm.; 6J whorls. 



It varies in details of sculpture and in the degree of elongation. 



