HAWAIIAN NESOPUPAE. 297 



E. Maui : Haleakala Crater, near Crystal Cave, under stones 

 011 the floor of the Crater (Cooke). Type 12465 Bishop 

 Museum, paratype 44696 A. N. S. P. 



As far as known only three specimens of this species have 

 been collected. It differs principally from N. limatula, from 

 the same island, by its larger size and weaker lamellae. 



11. NESOPUPA FORBESI C. & P., n. sp. PL 28, fig. 5. 



The shells are larger than any of the other species from 

 Hawaii, thinner and more transparent, more glossy, orange- 

 citrine and with very low almost evenly spaced striae, the 

 interstices not wrinkled as in living examples of central/is or 

 a-nceyana. Spire oblong with very convex outlines, tapering 

 gradually to the apex. Whorls 5, the embryonic almost 

 smooth, hardly granulose under the microscope, the evenly 

 spaced rather distant low striae beginning almost abruptly 

 near the middle of the second whorl. Last whorl ascending 

 slightly, swollen back of the aperture and hardly flattened 

 over the palatal plicae. Aperture irregularly trapezoidal with 

 rounded angles, the lip-insertions remote, united by a thin 

 callus. Angular lamella minute, almost dentiform, deeply 

 seated ; parietal deeply seated, long, strong, perpendicular to 

 the parietal wall; columellar rather strong, deeply seated, 

 slanting downwards; two palatal plicae short, rather deeply 

 seated, converging inwardly, the lower considerably larger 

 than the upper. Peristome tinged with a darker color than 

 the rest of the shell, erect, very faintly thickened within. 

 Length 2.08, diam. 1.22 ; apert., greatest length 0.85 mm. 



Hawaii: Huumula (Forbes). Type 39288 Bishop Museum. 



Only two specimens of this rare species are known at present. 

 Both were taken by Forbes on plants in a large kipuka in the 

 1855 Flow, about half way between Halealoha and Ainahou, 

 at about 5,000 ft. elevation. The size of this species easily 

 distinguishes it from the other species from Hawaii. From 

 JV. bishopi it is most easily separated by its lighter color, 

 thinner shell more convex outlines, and the surface, which is 

 very minutely granular rather than wrinkled in the inter- 

 stices between the striae. 



