MELANESIAN NESOPUP^E. 333 



(Species of Melanesia-.) 



Alaea an-nacnsia Beck, Index Molluscorum, 1837, p. 85. I. 

 Annaa. No description. 



Pupa condita n. sp., with var. b, zonata, of Gassies, Journ. 

 de Conch., xvii, 1869, p. 73, Art Island, New Caledonia. This 

 is said by Crosse (Journ. de Conchyl., 1894, p. 303) to be a 

 marine shell of the genus Rissoa, in poor condition. 



"29. NESOPUPA NORFOLKENSIS (Sykes). PI. 31, fig. 26. 



Shell subperforate, pyramid ate-ovate, yellowish, somewhat 

 shining, obliquely striate, apex rather obtuse. Whorls 5^, 

 convex, the last (with the peristome) about half the length 

 of the shell. Aperture ovate, 7-toothed : two parietal teeth, 

 2 columellar teeth, 3 palatals, the upper one smallest. Peri- 

 stome white, a little thickened, somewhat reflected, the outer 

 -margin forming an obtuse angle. Length 4, maximum diam. 

 2.3 mm. (Sykes). 



Norfolk Island, in the crevices of the back of a Dracena 

 (Brit. Mus.). 



Vertigo norfolken-sis SYKES, Proc. Malac. Soe. London, iv, 

 ><-t., 1900, p. 145, pi. 13, f. 3. 



An interesting little form with tumid whorls. Six of the 

 teeth are of about the same size, but the lower parietal and 

 upper palatal are very small (Sykes). 



The figure shows a sinistral and rather strongly sculptured 

 shell, with the lower (parietal) lamella longer than the upper 

 (angular). 



30. NESOPUPA LIFOUAKA (Gassies). PI. 31, fig. 25. 



The shell is widely umbilicate, very small, finely and reg- 

 ularly striate, shining, of reddish corneous, uniform color 

 with an uneven zone of reddish-brown at the periphery of the 

 last whorl. Spire conic-cylindric, with the summit obtuse, 

 mamillate. Suture crenulate and rather deep. Whorls 6 to 

 fi l /2> convex, the last whorl forming one-third the total length. 

 Aperture oblique, oval, contracted at base, having 4 folds and 

 lamellae arranged as follows : one on the columella, descend- 



