HAWAIIAN NESOPUPAE. 291 



the lip, the contraction preceded by a low, wide swelling 

 parallel to the margin of the aperture, near and at the base. 

 Aperture truncate-ovate, scarcely oblique, nearly perpendi- 

 cular, the outer margin slightly rounded, the columellar mar- 

 gin nearly straight, margins united by a very thin minutely 

 punctate parietal callus. Angular lamella short, upright, not 

 extending to the margin of the aperture. Parietal lamella 

 long, strong, bent obliquely outwards. Columellar lamella 

 strong, slanting downwards, deeply seated, entering almost 

 horizontally in front, its inner end ascending; the upper and 

 lower palatal plicae rather long, slightly converging backwards, 

 extending to a little distance within the margin of the aper- 

 ture; the lower one quite stout. Peristome thin, expanded 

 at the columella and base, the upper outer portion erect. 



Length 1.65, diarn. 1.1, aperture (diag.) 0.65 mm. 



E. Maui : Ainahou and Palikou in Haleakala Crater (Cooke) 

 and Ukulele (Forbes, Cooke). All specimens taken on the 

 fronds of living ferns. W. Maui: Maunahooma (Forbes and 

 Cooke) Honokaoo (Forbes). Type 11067 Bishop Museum,, 

 paratypes 38489 Bishop Museum and 44692 A. N. S. P. 



Apparently a widely dispersed species on East and West 

 Maui. All the specimens from E. Maui, were found at over- 

 6,000 ft. elevation; those from W. Maui 2,000 ft. elevation.. 

 The single specimen collected by Mr. Forbes at Ukulele has a 

 rather short, lamella-like fold between the upper and lower 

 palatal plicae, otherwise it agrees perfectly with the typical 

 specimens from Ainahou. A second specimen collected by 

 Cooke from near the same spot is longer, slightly narrower 

 with more convex outlines, lighter and uniformly colored and 

 with short palatal plicae. This specimen measures : Length 1.9, 

 diameter 1.07, aperture (diag.) 0.75 mm. 5!/4 whorls. West 

 Maui specimens are slightly smaller, more compact and the 

 apertural lamellae are not only more strongly developed but 

 are also longer. A specimen from Maunahooma measures L. 

 Length 1.55, diam. 1.1 mm. ; apert., greatest length 0.67 mm. 



7. NESOPUPA DUBITABILIS C. & P., n. sp. PI. 28, fig. 9. 



This shell is smaller than N. limatula, more shortly ovate- 



