NEWCOMBIA. 



The sculpture is most like that of N. -plicate, gemma, which 

 differs by its much larger size and lighter color, N. sulcata hav- 

 ing the last whorl rich chestnut colored, the next earlier whorl 

 chestnut or reddish, and the preceding one flamed with white. 

 The spiral cords of the last whorl vary in number and prom- 

 inence. Specimens from Ahaina are drawn on pi. 14, figs. 9, 

 10, 11. Length 11. diam. 5 mm. The figures on plate 2 are 

 copied from Borcherding. 



3. N. CANALICULATA (Baldwin). PI. 2, figs. 5, 6. 7. 



" Shell sinistral, very minutely perforated, somewhat solid, 

 acuminately turreted, apex subacute; surface sculptured 

 throughout with numerous acute, spiral keels, which become 

 blunter as they approach the apex, the interstices between the 

 keels exhibiting under a lens very delicate growth striae. Color 

 brown, upper whorls tessellated with brown and white. Whorls 

 6, slightly convex, lower one somewhat flattened at the base; 

 suture lightly impressed. Aperture oblique, oval, livid white 

 or light brown within; peristome acute, very lightly thickened 

 within, expanded, columellar margin reflexed over the small 

 perforation, margined with light brown on both face and the 

 reverse; columella very slightly developed, plain and smooth. 

 Length 14, diam. 6J mm. 



"Animal when extended in motion as long as the shell. 

 Mantle slate color, margined with brown. Foot light slate, 

 studded on the sides and head above with spots of deeper shade. 

 Tentacles short and slender, dark slate." (Baldwin.) 



Molokai: Halawa (Baldwin); Punkolekole (Meyer). 



Achatinellacanaliculata BALDWIN, Proc. A. N. S., Phila., 1905, 

 p. 226, pi. 10, f. 28, 29. Newcombia c., Bald., BORCHERDING, 

 Zoologica, p. 96, pi. 9, f. 3, 3a. 



Smaller and much darker than N. plicata, and with more 

 strongly developed, more acute spiral ribs than N. sulcata. The 

 spirals are at first equal and rounded, but become unequal and 

 acute on the later whorls, with some smaller threads in most of 

 the intervals, which are marked with growth -striae. The color 

 is red-brown, indistinctly streaked along growth-lines with 

 whitish, the spirals also being whitish or pale at their summits. 



