228 PROCEEDINGS OF THE ACADEMY OF [1895. 



columella, and the peculiar soft parts of the animal. The typical 

 forms are found in the small valley of Ohia on Molokai. Departing 

 from this locality on either side, modified forms without the hiplicate 

 columella are somewhat common. 



Laminella depicta, n. sp. Pi. XI, figs. 33, 34, 35. 



Shell sinistral, sometimes slightly perforated, rather thin, elong- 

 ately conical, apex subacute; surface shining, striated with very 

 delicate growth lines ; nuclear whorls smooth. Color light yellow 

 or reddish yellow, plain, or marked with numerous black, anastom- 

 osing veins ; apex almost black in some examples. Whorls 7, 

 faintly margined above, somewhat convex, suture distinctly im- 

 pressed. Aperture a little oblique, oval, white or pinkish, the 

 outside markings visible within ; peristome simple, very thin ; colu- 

 mella white, sub-biplicate, tortuous, abruptly terminating in a thin 

 lamellar plait. 



Length, 15$ ; diam. 6i mm. 



Habitat, Kamalo, Island of Molokai. 



Auimal extended in motion shorter than the shell. Mantle very 

 light brown. Foot above and below almost white. Tentacles short, 

 light brown. 



This species is allied, to A. Alexandri N ewe, from the Island 

 of Maui, and to A. Remyi Newc, from the Island of Lanai, 

 but differs from both in the color and habits of the animal. 



Section AM ASTRA H. & A. Adams. 

 Amastra pullata, u. sp. PI. XI, figs. 31, 32. 



Shell dextral, imperforate, solid, elongately ovate ; surface luster- 

 less, covered with rather close, irregular, growth striae ; the embry- 

 onic whorls finely radiately sulcated. Color light brown ; covered 

 with a black fugacious epidermis, dense on the last whorl, more 

 sparsely distributed on the upper whorls, worn oft' in front of the 

 aperture ; apex dark brown. Whorls 7, convex ; suture well 

 impressed. Aperture oval, a trifle oblique, white within with a pur- 

 plish tinge ; peristome acute, slightly thickened within, edge dark 

 purple; columella purplish white, flexuous, abruptly terminating in 

 a broad, thin, slightly arched lamellar plait. 



Length, 23 ; diam. 11 >V mm. 



Habitat, Waikolu, Island of Molokai. 



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



