304 HAWAIIAN NESOPUPAE. 



Length 2.25, diam. 1.13, apert. (Diag.) 0.85 mm. 5% whorls; 

 Manoa, fossil (Cooke). 



Maui: Specimens of this subspecies from the highlands of 

 West Maui, have the apices much eroded giving the appearance 

 of a very blunt spire. The whorls are very convex and the 

 outlines are almost cylindrical. The surface is covered with 

 rather low, close, membranous costae. A well preserved speci- 

 men (the apex of which is not much eroded) measures: Length 

 2.35, diam. 1.22, apert. (diag.) 0.97 mm. 5y 2 whorls. 



Specimens from East Maui are similar to those from West 

 Maui. 



Lanai: I have seen only two specimens of this sub-species 

 from Lanai. Both were collected by Forbes and each came 

 from a different locality. Both specimens appear to be more 

 closely related to the Molokaian form than the Mauian. One 

 of them measures: Length 2.15, diam. 1.15, apert. (diag.) 

 0.86 mm. 5% whorls. 



No specimens of this subspecies have been seen from Hawaii, 

 and so far as I know up to the present time it has not been 

 taken on that island. 



14. NESOPUPA THAANUMI Ancey. PI. 28, figs. 11, 12. 



"Shell dextral, minutely rimate-perf orate, of a pleasing 

 corneous buff color, ornamented with rather distant, weak 

 and very deciduous, silvery shining, membranous costula?; 

 somewhat conic-ovate, obtuse. Whorls 4^, convex, suture im- 

 pressed ; the upper quite minute ; the last sub-saccate, shortly 

 ovate, scarcely tapering at the base, ascending slightly to- 

 wards its end, very lightly impressed outwardly back of the 

 aperture. Aperture erect, truncate-oval, sub-rotund, ex- 

 tended outwardly and bent in front (above the middle portion 

 of the dextral margin), armed with strong white lamella as 

 follows : an arcuate angular, elongate but short, extending to 

 the margin ; a little more deeply seated parietal lamella, enter- 

 ing deeply; a transverse, internal columellar; and 2 palatals, 

 the upper seated a little nearer the margin, both elongate but 

 not very long. Lip narrowly expanded, with quite distant 

 insertions. Length 1.33, diam. 1.0, alt. apert. 0.5 mm. (Ancey). 



