: 



PHRONTIS. 39 



X. w'tlata. A. Ad. (fig. 159), is a synonym. 



X. S.EROTINA, A. Ad. PI. 12, fig. 160. 



Yellowish brown, shining, lighter at the sutures. 



Length, -5-'7 inch. 



Australia, Cape of Good Hope. 



X. LABIATA, A. Ad. PI. 12. figs. 161, 162. 



Yellowish brown or ash-color, obscurely light banded in the 



middle. Length, *7 inch. 



Malacca. 



X. Terebroides, Reeve (fig. 162), is a synonym, the flexuous 

 sinus of the upper end of the lip figured in N. labiata, being 

 othing but an individual variation. 



. ELATA, Gould. PL 11, fig. 125. 



Whorls eight, flattened, turrited, with a marginal line near the 

 suture ; six upper ones with distant, acute folds ; penultimate 

 and upper half of body whorl smooth ; lower part of the latter 

 with half-a-dozen regular, deeply impressed, revolving striae. 



Length, '7 inch. 



Africa. 



I am not acquainted with the species. 



Submenus Phrontis, H. and A. Adams. 



X. IATKOSTOMA. Brod. and Sowb. PI. 12, figs. 163-165. 



Olive brown or ash-color, sometimes with a broad black or 

 narrow white band; lip and expanded callus orange. 

 Length, '0-1 *2 inches. 



Panama to Mazatlan. 



N. luleoxfoma, Kiener (fig. 163), is a synonym: its locality is 

 erroneously given ' Senegal." X. xanthostoma, Gray (fig. 165), 

 is also svnonvmous. 



X. TI:<;I J.A. Reeve. PL 12. figs. 166, 167. 



Ash-color, usually lighter below the sutures and on the 

 nodules, with a light band just below the nodulous shoulder ; 

 aperture dark within, but showing the whitish band ; lip and 

 columella callus white. Length, -5--75 inch. 



Galapagos; Panama (Cuming); Mazatlan; Southern Coast 



of California. 



