NESOPUPA. 113 



pression at the place of the palatal lamella. After some 

 delicate growth striae sharp ribs, unevenly spaced, appear, 

 and the whole surface is sculptured besides with a finely 

 tubercular structure (Rensch). 



Height 1.9 to 2 mm., diam. 1.1 to 1.2 mm. 



Bismarck Archipelago: Karlei, New Pommerania (Josef 

 Schneider) . 



Nesopupa novopommerana Rensch, Zool. Anzeiger, vol. 98, 

 p. 35, fig. 7. March, 1932. Type in Zool. Mus. Berlin. 



This species is evidently an hisulipupa, close to N. harrack- 

 porensis, N. malayana, etc., not nearly related to N. cocosensis. 



Rensch remarks that with this species the genus Nesopupa 

 is recognized from New Pommerania for the first time. . . . 

 The New Pommeranian species is most similar in shape, color, 

 dentition and sculpture to N. cocosensis Dall. N. cocosensis is 

 larger throughout, the peristome is corneous to reddish-brown 

 (the New Pommeranian perhaps older and therefore white 

 lipped), the aperture is relatively larger, and the superficial 

 sculpture lacks the ribs, therefore the tubercular structure 

 appears more strongly developed than in N. novopommerana. 



Nesopupa quadrasi transaequatorialis Rensch. 



Differs from N. quadrasi (Mldff.) of Guam [see vol. 25, 

 p. 335] by the less deep suture and therefore less strongly 

 convex whorls, by the somewhat stronger impression of the 

 palatal fold and by the surface structure: the tuberculation 

 of the surface is very strongly expressed in the New Pommer- 

 anian form, while the ribs are less prominent, just the opposite 

 of the Guam specimens before me. 



Height 1.5 to 1.8 mm., diam. 1 to 1.1 mm. The specimens 

 from Guam are uniformly somewhat higher; the type is 1.7 

 mm. high, 1 wide (Rensch). 



Bismarck Archipelago : Malkong, Wide Bay, New Pom- 

 merania. 



Nesopupa quadrasi transaequatorialis Rensch, Zool. An- 

 zeiger, vol. 98, p. 36. March, 1932. Type in Zool. Mus. 

 Berlin. 



