XENOPI10RA. 159 



Genus XEXOPHORA, Fischer, 1807. 



X. CALCULIFERA, Reeve. PI. 44, figs. 75, 76. 



Light yellowish brown, whorls convex, obliquely subgranu- 

 larly undukitely striate, suture and periphery agglutinating, the 

 periphery undulated ; base widely urabilicated, closely radiately 

 striated, the stride continued obliquely across the peripheral 

 blade and there becoming corrugated or granose, middle of base 

 with revolving grooves. Diaui. 2'5 inches. 



China. 



X. Sinentis, Phil., is believed to be identical, and should per- 

 haps be preferred, its date being earlier. 



X. SOLARIOIDES, Reeve. PI. 44, fig. 77. 



Widely .umbilicated, yellowish white, obliquely rugosely 

 striated, copiously agglutinating; base radiately arcuately cos- 

 tulate, spirally granularly lirate, somewhat obliquely costulate 

 at the periphery, umbilical area infundibuliform, subangular. 



Diam. 20 mill. 



Philippines. 



Yen' like X. calculi/era, but much smaller, and distinguished 

 by its more profuse crop of foreign bodies. 



X. CORRUGATA, Reeve. PL 45, tigs. 81, 82. 



Stoutly conical, diagonally wrinkled and corrugated, suture 

 and periphery closely agglutinating fragments of shells ; base 

 with curved radiating granose striae, and a few revolving 

 grooves, imperforate. Diam. 2'5 mill. 



Indian Ocean, Japan. 



X. CAPERATA, Phil. PL 44, figs. 78, 80 ; PL 45, fig. 83. 



Obliquely perforate, light yellowish brown, suture and per- 

 iphery agglutinating, surface obliquely striate ; base lamellarly 

 striate and concentrically lirate, some of the lirae strong, ele- 

 vated, becoming smaller and denser on the peripheral margin. 



Diam., 1'5 inches. 



E. Africa ; Pondicherry. 



Smaller, thinner, with less dilated periphery than the last 

 species ; distinguished also by its basal sculpture and half-open 

 umbilicus. 



