286 HAWAIIAN NESOPUPAE. 



A very variable and widely distributed little species. Speci- 

 mens from different colonies and islands vary considerably 

 from the typical form described above. The most important 

 races may be briefly described as follows : 



a-. The shells from Rocky Hill and Manoa, Oahu, have 

 slightly blunter apices than the typical lot. 



b. Those from Kahuku and Kailua are slightly smaller but 

 agree in other characters. 



c. Specimens from Kalaeokailio Pt., Molokai, are slight I y 

 longer and narrower in proportion to their length. 



d. Lanaian and East Mauian specimens are almost identical 

 with the type lot. 



e. Specimens from Kahoolawe have more convex whorls and 

 the outlines of the spire are also more convex. 



/. The shells from Hawaii are slightly smaller, cylindrical 

 in outline and with fewer and closer costse. 



Shells from some of the different deposits have the follow- 

 ing measurements : 



a. Length 1.53, diam. 0.86, greatest length apert. 0.55 mm. ; 

 Rocky Hill, Oahu. 



. Length 1.6, diam. 0.9 mm. Diamond Head, Oahu. 



b. Length 1.35, diam. 0.8, greatest length apert, 0.5 mm. ; 

 Kahuku, Oahu. 



b. Length 1.38, diam. 0.8, greatest length apert. 0.5 mm. ; 

 Kailua. Oahu. 



c. Length 1.6, diam. 0.83, greatest length apert. 0.55 mm.: 

 Kalaeokailio Pt., Molokai. 



c. Length 1.55, diam. 0.9 mm. Moomomi, Molokai. 



d. Length 1.5, diam. 0.86 ; greatest length apert. 0.52 mm. ; 

 Western End Lanai. 



d. Length 1.45, diam. 0.82, greatest length apert. 0.55 mm. ; 

 Kanaia, E. Maui. 



e. Length 1.53, diam. 0.86, greatest length apert. 0.55 mm. : 

 Kanapou, Kahoolawe. 



/. Length 1.43, diam. 0.75, greatest length apert. 0.52 mm. ; 

 Puuwaawaa, Hawaii. 



