POLYNESIAN NESOPUP^E. 327 



granose, more or less noticeably striate, with sparse traces of 

 cuticular riblets in some specimens, probably well developed 

 in fresh shells. There are 8 teeth : angular and parietal 

 lamellae strongly developed, columellar strong but deeply 

 placed, turned down at its inner end ; there is a subcolumellar, 

 usually invisible in direct front view; upper and lower pal- 

 atals are subequal, not very long, and converge somewhat in- 

 wardly; interpalatal smaller; and there is a small tubercular 

 suprapalatal. 



Length 1.9, diam. 1.15 rnrn. 



Length 1.8, diam. 1.1 mm. 



It differs from N. tantilla by the smaller aperture, the more 

 numerous teeth and by having the inner end of the columellar 

 lamella turned more strongly downward, much as figured for 

 N. armata. Still, it may prove to be a race of that species. 

 N. armata has a much larger upper palatal fold, and appears 

 to be quite distinct. 



Pupa, dunkeri Zelebor, whose MS. description was printed 

 by Pfeiffer, is supposed to be identical with pleurophora. 

 The description follows. 



" P. Dunkeri Zelebor. T. dextrorsum convoluta, ovato- 

 cylindrica, apice obtuso, umbilici rima capaci, crassa, striis et 

 granulis tantum oculo armato conspicuis holosericeo-splendeus, 

 purpureo-fusca aut flavescente-olivacea ; spira sensim incres- 

 cente, anfr. quatuor vel quinque valde convexis sutura pro- 

 f unda conjunctis ; apertura semiovata plicis septem vel novem 

 coarctata; plica magna et altera in radio, minima et duabus 

 magnis incrassatis profunde intrantibus, quae cum aperturae 

 margine conjunctae valde prominent, superiore aperturae 

 pariete, quae cum ora, vix conspicua dentiformi in pullis de- 

 ficiunt in toro aperturae, collocatis ; margine aperturae medi- 

 ocre incrassato rotundato paulo reflexo, 11011 conjuncto, rufes- 

 cente-fusco, in speciminibus clarioribus obscure rufescente- 

 violaceo. Alt. 2, lat. 1% mill. Habitat in insula Taheiti." 

 (Zelebor in Pfr.) 



23. NESOPUPA ARMATA (Pease). PI. 30, figs. 9, 12, 13. 



The shell is ovate, cinnamon-brown, darker behind the lip, 

 with a tawny peristome and not much gloss. The surface is 

 densely pitted or vermiculate-wrinkled, with irregular oblique 



