AMASTRA. 21 



here figured, serve to elucidate this little-known form. They 

 have the whiteness and texture of sand-dune fossils. It ap- 

 pears that Doctor Newcomb had a tablet bearing five speci- 

 mens. Three remained glued fast when one of us examined 

 it. Two shells had been removed, as the glue marks show, and 

 doubtless were given to Doctor Hartman. The label on the 

 tablet is as follows: "Achatinella Hartmani Newcomb. ex- 

 tincta Pfr., a misnomer as this is not an extinct species. 

 Kauai." 



It appears therefore that the locality given by Hartman 

 "Oahu" was from Pfeiffer, who gave that locality for A. 

 extwcta, which Newcomb and Hartman supposed to be the 

 same as hartmani. Newcomb 's "recent examples/' thought 

 to be the same as these fossils, but really differing by the far 

 less inflated shell, were said to be from Oahu. Stripped of 

 the masque fashioned out of the misconceptions of Newcomb 

 and Hartman, it appears that A. hartmani is a fossil shell 

 of Kauai, closely related to A. similaris Pse., and so far as we 

 know, unlike any Oahuan species. 



A. hartmani has a conspicuously rotund last whorl and a 

 straightly conic spire. The whorls are strongly convex, 

 suture deeply impressed, by transparence showing a very 

 narrow clear gray margin below. There are irregular and 

 rather strong wrinkles of growth on the last whorl. The 

 surface is glossy, perhaps polished by the dune sand. Outer 

 lip is obtuse, somewhat thickened within. Columellar fold 

 small, as in A. similaris. The only difference between these 

 shells and A. similaris received from Pease is that the aper- 

 ture is a little more rounded at the base of the columella 

 in A. hartmani. In similaris it is more distinctly angular. 

 The value of this difference remains to be seen, when the 

 shells are collected in quantity. Fossil Cyclamastras are 

 generally found in copious numbers. Meantime A. hartmani 

 may be given a provisional place in the Kauaian list. 



Length 12.3, diam. 7.9 and 8, aperture 6.1 mm. 



Length 12, diam. 7.5, aperture 6.1 mm. 



The tip of the spire is broken in all of the shells. 



