THE NAUTILUS. 



VOL. XXVI. JANUARY, 1913. No. 9 



NEW CYPRJEIDJE. 

 BY S. RAYMOND ROBERTS. 



Recently there was sent to me for examination by Mr. Y. Hirase, 

 Kyoto, Japan, a small but extremely interesting lot of shells, mostly 

 belonging to the Cypraidce, two species of which I believe to be 

 new to science. 



CYPRJEA HIRASEI, n. sp. Plate 7, figs. I, 2, 3. 



Shell pyriformly ovate, extremities produced, base convex ; only 

 moderately calloused laterally, the callus extending well up the dome 

 on the left side, but not on the right. Dorsal surface longitudinally 

 and spirally faintly ridged or malleated in irregular spiral series, 1 

 this sculpture obsolete towards the anterior end. Aperture nearly 

 straight, the upper fourth a little curved ; inferior third a little 

 dilated; teeth small, about 27 on each side and well within the 

 aperture. Ground work of dorsal surface creamy white, three 

 banded with flesh color, over which there is a tracery or imperfect 

 reticulation and near the borders of the lateral calluses a few blots 

 of yellowish brown ; topped with a conspicuous irregular blotch of a 

 darker shade. Extremities pink, base white, sides, especially the 

 left side, faintly spotted pinkish brown. 



Length 51, diam. 32, elevation 26 mm. 



Habitat, Tanabe, Kii Coast, Japan (Hirase). 



1 This raalleation, while conspicuous enough in the shell does not show in 

 the photographic figure. It resembles the malleation of a rough Lymnxa 

 palustria. 



