302 HAWAIIAN NESOPUPAE. 



Whorls 5 l /2, very convex. The embryonic whorls are more 

 coarsely granulose than any of the forms noted in this sub- 

 genus. The granules for the first half whorl are arranged 

 longitudinally, giving the appearance of striae; at about the 

 beginning of the second whorl the very faint transverse stria? 

 appear to be made up of uniting granules. These strias gradu- 

 ally become stronger with the growth of the shell, the granules 

 persisting in the inter-costal spaces, gradually becoming 

 fainter and disappear about the end of the second whorl. 

 Aperture truncate-ovate, the outer margin hardly flattened, 

 the lip insertions slightly converging, furnished with 5 lamella?. 

 Angular lamella somewhat thickened and calloused in front, 

 slender and thin inwardly, lower than the parietal. Colu- 

 mellar lamella slightly slanting downward. The upper palatal 

 fold is equal to if not higher than the lower, not quite as 

 deeply seated, and slightly shorter. Length : 2.32, diam. 1.15, 

 apert. (diag.) 0.85 mm. Type 11083 Bishop Museum, para- 

 types 35126 Bishop Museum and 44726 A. N. S. P. 



Molokai : Poholua, type locality (Cooke) ; Kilohana and 

 Puukolekole, Kamalo (Pilsbry and Cooke) ; Kalihi, Puunea, 

 Waikolu (Cooke) ; Mapulehu (Thaanum) ; fossil specimens 

 from Mauna Loa, Moomomi, Kalaeokailio (Cooke). 



This subspecies was at first considered as a separate species, 

 but on comparing the large series of both wesleycvna, and 

 rhadina in the Bishop Museum collection it appears to be 

 better to consider both forms as belonging to the same species. 

 N. rhadina is easily recognized from weslcya-na by its more 

 convex whorls, darker color and narrower outlines. 



Living examples of this subspecies are only taken under 

 the loose bark of trees or in moss growing on tree trunks. 

 It is never found abundantly, due to the amount of time con- 

 sumed in finding only a few specimens. The most usual 

 habitat is under loose bark of the lehua (Metrosideros 

 polymorpha) . 



On the flat east of the peak, Puukolekole, it varies in size 

 and shape. 



Alt. 1.95, diam. 1.18 mm. 



Alt. 2.15, diam. 1.3 mm. ; decidedly ovate-conic. 



