THE NAUTILUS. 135 



what contracted near the base. Aperture extremely nar- 

 row, oblong; lip flatly reflected, the central half of its 

 length provided with a flange extending towards the in- 

 ner or columellar lip, from which proceeds a correspond- 

 ing convexity, thus giving to the aperture a form much 

 like the traditional key-hole. Color grayish-white, painted 

 Fig. I. longitudinally with brownish and black lines. 

 Length of shell 23, diameter 9? mill. Width between flanges 1, 

 width of flange on outer lip 2 mill. Color of lip white ; aperture 

 slightly shaded within. Habitat, Brazil. 



Anctus angiostoma Wagner (capueira Spix), Fig. 2, and A . Filshrxji 

 are the only living S{)ecies of the genus known, and both are in color 

 j)attern and general form very much alike. In the for- 

 mer species, however, the apex is not black and shining 

 as in the latter nor are the apertures at all alike save in 

 general outline. Indeed, that of ^. Pilshri/i is absolutely 

 distinct from any other known to the writer. This alone 

 would justify its specific separation. 

 Fig. 2. The figures were drawn from })hotograj)hs of the shells 

 and may therefore be accepted as correct. 



The species has been named in honor of my friend Mr. Henry A. 

 Pilsbry, Conservator of the Conchological department of the Acad- 

 emy and j)resent Editor of the "Manual of Conchology." 



Oliva cryptospira Ford. Figs. ^^. 4. 



Shell cylindrical, slightly enlarged near either end, producing an 

 obese appearance. Salmon-colored, with a few dashes of white 

 accompanied by faint zigzag brownish lines showing through the 

 enamel, the latter being somewhat thickened and more orange in 

 color on the basal fasciole. Spire short, with sutures entirely con- 

 cealed by a heavy callus. Edge of lip and interior of aperture white. 

 Length of type specimen 21 inches. Greatest diameter 1 inch. 

 Habitat, Moluccas. 



This shell is probably well known to veteran collectors, since it 

 has been ])osing for many years as a variety of 0. irisans Lamarck, 

 from which species, however, it is in fact distinct. 



