Some New Species of Amastra. 



Bv C. Montague Cooke, Jr. 



Nearly all the material treated of in the present paper has- 

 come to the Bishop Museum since the visit of Dr. Pilsbry to the 

 Hawaiian Islands in 191 3. Six of the species and varieties, found 

 in the following descriptions have been taken alive : two of the 

 species are only known from recently dead specimens : the rest 

 (nineteen species and varieties) are described from specimens 

 found in more or less recent Pleistocene deposits. 



All the Holotypes of the following species and varieties are in 

 the collection of the Bishop Museum. The color-terms used in 

 the descriptions of the living species are taken from Ridgway's 

 Color Standards and Nomenclature, 1912. Dr. Pilsbry's classifi- 

 cation in the Manual of Conchology, Vol. XXI, has been followed 

 and the proper position of each of the following species can be 

 found by referring to the Systematic List of Amastrae on page 137. 



The illustrations were prepared from photographs of the 

 Holotypes. Figures 2 and 3 plate B and 3 and 7 plate C, were 

 photographed by Mr. Dean H. Lake of the Museum Staff, the 

 rest bv Mr. R. K. Bonine. 



Subgenus Kauaia. 

 Section Armiella. 



A. ricei, n. sp. 



PI. C. Fig. I. 



The shell is imperforate, dextral, elongate, ovate-conic, solid; 

 in fresh dead specimens the color is benzo-brown with a broad, 

 yellowish white band below the sutures and a basal patch of the 

 same color. Spire elongate, with convex outlines and an acute 



[221] (3) 



