AMASTRA, OAHU. 225 



in five, nearly white in three shells of the lot. Two of these 

 shells from Newcomb are figured, pi. 33, figs. 15 (Waianae) 

 and 16. Xewcomb's original figure is copied, pi. 33, fig. 17. 



In a series of three shells from Waianae collected and 

 labeled porpliyrea by Gulick, one specimen is like the New- 

 cornb shells, the others having a buff ground with numerous 

 reddish lines, a pink apex, and many shreds of brown cuticle 

 on the last two whorls, exactly as in intermedia, to which 

 form these shells may perhaps be referable. 



A large series from Lihue (pi. 33, figs. 18-21) labeled A. 

 grossa Pfr. by Gulick, consists of rather robust shells, vari- 

 ously colored : 



1. Last whorl or two bright yellow with a white subsutural 

 band, early whorls fles'h-colored. Cuticle very thin, not de- 

 ciduous in shreds, becoming light chestnut behind the lip 

 (fig. 20). 



2. Very pale fleshy-buff, early whorls flesh-brown; last two 

 whorls partly covered with remains of an opaque, brown or 

 blackish cuticle (fig. 21). 



3. Under color fleshy-brown, apex often purplish, cuticle 

 opaque and dark (fig. 18). 



4. Same as preceding, but there are darker spiral lines and 

 bands on the later whorls ; the coloration being like intermedia 

 and cylindrica (fig. 19). 



In these shells the spire is straightly or almost straightly 

 conic, and the lip is thickened within. The proportions are 

 rather variable : 



Length 18.5, diam. 11.2 mm. ; 6% whorls. 



Length 19, diam. 11 mm. 



Length 20, diam. 11.2 mm. 



Specimens referred by Gulick to porphyrea are also before 

 us from the main range of Oahu Ahonui and Wahiawa (pi. 

 33, fig. 14), and also from Kahana on the north side, where 

 it was collected by C. M. Cooke. These shells have rather 

 strongly raised, light-colored striae on a ground of dull red 

 and purplish, summit dull purple, blue or flesh-colored ; suture 

 generally, but not always, marked with a light line. There is 

 no trace whatever of opaque outer cuticle. The fine filiform 





