262 AMASTRA, MOLOKAI. 



Fig. 14. Length 22.8, diam. 13, aperture 11 mm.; 6% 

 whorls. 



Fig. 15. Length 22, diam. 12.1, aperture 11 mm.; Q% 

 whorls. 



Fig. 16. Length 22.5, diam. 13.5 mm. 



Molokai : Waikolu (type loc.) ; Kaohu, Kahanui and Waia- 

 kapuaa (Borcherding) ; all in the northern half of the island, 

 south and southeast of the northern peninsula; Kamalo and 

 Makakupaia Mts. (Perkins). 



Amastra pullata BALDW., Proc. A. N. S., Phila., 1895, p. 

 228, pi. 11, figs. 31, 323 (shell). GWATKIN, t. c., p. 239 (rad- 

 ula) . BORCHERDING, Zoologica, xix, p. 109, pi. 10, figs. 6, 7, 8. 

 ' Animal extended in motion a trifle longer than the shell. 

 Mantle almost white with a slate tinge. Foot above and below 

 almost white, the posterior portion and edges densely studded 

 with very minute pink spots. Tentacle short, light slate, with 

 a few spots of the same color on the head above. Unlike 

 most of the Amastra, which generally have dark, dingy colored 

 animals, this species has a beautiful, almost white animal. 

 The after portion and edges of the foot under a lens are seen 

 to be closely studded with minute pink spots which give these 

 parts a delicate pink hue " (Baldwin}. 



Distinguished from A. umbrosa by the more strongly sculp- 

 tured apex. The color of the animal seems also to be charac- 

 teristic. Described from the type. In one of five specimens 

 of the original lot sent by Mr. Baldwin the interior is a deli- 

 cate shade of pink. In the others it is white or blue-white. 



The embryo resembles pi. 26, fig. 5 except that the spire is 

 lower and the ribs coarser. They begin on the second half of 

 the first whorl, are strong and coarse to the end of the second 

 whorl, after which they became closer and weaker. The 

 peripheral keel projects very narrowly on the second whorl 

 and is marked on the last with a white band. The completed 

 embryo has 21/4 whorls and is imperforate. 



A common form in the C. M. Cooke and other collections 

 studied is decidedly more obese, with larger aperture, apex 

 white or flesh-colored. The cuticle is slightly mottled with 

 dark on the penultimate whorl, the last whorl colored as in 

 pullata (pi. 37, fig. 17). 



