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. newcombia Pfr. , HART- 

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

 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 strise 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. 



