294 AMASTRA, MAUI. 



white submedian fold. Length 12.5, diam. 7.4, aperture 6 

 mm. ; G 1 /^ whorls. 



East Maui: Kula, with. A. affinis, etc. (Gulick). 



Two specimens of this form were in a vial of the Gulick 

 collection, no. 1541, Boston Society, with A. affinis, A. mal- 

 leata and A. a. Cinderella, labeled Kula, E. Maui. Compared 

 with A. crassilabrum Nc., this species differs by its flatter 

 whorls, more distinctly striate embryonic whorls, by the pres- 

 ence of brown cuticle on the last whorl, and the smaller colu- 

 mellar lamella. It is probably a relative of A. nigra, having 

 the striate embryonic whorls of certain exceptional individ- 

 uals of that species. 



94. A. MAKAWAOENSIS n. sp. PL 43, figs. 7, 8, 9. 



The shell is imperforate, oblong-conic, the outlines of the 

 spire straight in the upper part, then convex. Ground-color 

 very pale o<chre or 'cream, or sometimes reddish-brown above, 

 pale yellow below the periphery ; except in front of the aper- 

 ture it is covered by a dense, somewhat glossy cuticle, which 

 is black (or with some reddish streaks) on the last whorl, 

 copiously streaked with cream or brownish-white on the 

 penult, whorl; earlier whorls red-brown with pale dots or 

 streaks. Embryonic whorls flattened, the first coarsely cos- 

 tate, with a carina which is nearly 'concealed at the suture; 

 second whorl more finely costulate; subsequent whorls with 

 sculpture of growth-wrinkles and on the last two whorls 

 numerous unequal, shallow spiral striae (often weak or obso- 

 lete) ; the last whorl is not very convex, usually contracted, 

 and usually has flattened, spirally descending facets, or mal- 

 leation. Aperture white, oblique, the lip acute, somewhat 

 thickened within. Columellar fold more or less thickened 

 at the end, very obliquely ascending. 



Length 20, diam. 10, aperture 9.5 mm. ; 6% whorls. 



Length 20.5, diam. 10, aperture 8.3 mm. ; 7 whorls. 



Length 19, diam. 10, aperture 9 mm. ; 6% whorls. 



East Maui: Makawao (Baldwin). 



This species is one of several forms which have been 

 grouped under the comprehensive name A. mastersi. It dif- 



