300 HAWAIIAN NESOPUPAE. 



seen from Kauai. Type 18704, Bishop Museum; paratypes 

 18707 Bishop Museum, 44727 A. N. S. P. and in Thaanum coll. 



Nesopupa wesleyana ANCEY, Proc. Malac. Soe. London, 

 vi, June 1904, p. 123, pi. 7, fig. 16. 



This species is easily recognized from P. newcombi by its 

 more cylindrical spire and the long, lamella-like angular 

 lamella. Typical P. wesleyana is usually found on rather 

 damp rocks, though it is occasionally taken on rather smooth- 

 barked trunks of trees. It does not seem to possess as many 

 varieties or races as P. newcombi and the few varieties, noted 

 below, are much more constant in all their characters than 

 those of P. newcombi. 



The embryonic whorls are rounded, scarcely lighter colored 

 than the rest of the shell, under a strong lens very minutely 

 granulose, the granules not appearing to be arranged in any 

 regular manner. 



In the typical form the angular lamella is situated parallel 

 to the parietal inwardly, curving outwards in front and unit- 

 ing to the outer lip at a slight distance back of the outer 

 margin. It descends rather abruptly in front but gradually 

 at the inner end. Sometimes there is a slight depression or 

 notch just back of outer end. This is very well represented 

 in fossil specimens collected by Pilsbry at Kailua, Oahu. The 

 parietal lamella is strong, rather deeply seated and nearly per- 

 pendicular to the parietal wall. The columellar is deeply 

 seated, perpendicular to the columella and rather long. The 

 lower palatal is somewhat deeply seated, long, parallel to, 

 but stronger than the upper. The upper palatal extends 

 nearer to the margin than the lower, inwardly its free margin 

 is slightly bent towards the lower palatal. Externally there is 

 a slight impression over it. 



A somewhat larger fossil race was found by Messrs Thaanum 

 and Henshaw at Palihoukapapa. The whorls are slightly 

 flatter than in the typical form. One of the specimens meas- 

 ures: Length 2.15, diam. 1.22, apert. (diag.) 0.86 mm. 5% 

 whorls. 



The type specimen has the following dimensions: Length 



