PHRONTIS. 39 



N. vittata, A. Ad. (fig. 159), is a synonym. 



N. SEROTINA, A. Ad. PL 12, fig. 160. 



Yellowish brown, shining, lighter at the sutures. 



Length, -5-'7 inch. 



Australia, Cape of Good Hope. 



N. LABIATA, A. Ad. PL 12, figs. 161, 162. 



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



middle. Length, '7 inch. 



Malacca. 



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

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

 nothing but an individual variation. 



N. 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 

 arid 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. 



Phrontis, H. and A. Adam?. 



N. LUTEOSTOMA, Brod. and Sowb. PL 12, figs. 163-165. 



Olive brown or ash-color, sometimes w r ith a broad black or 

 narrow white band ; lip and expanded callus orange. 



Length, "9-1*2 inches. 



\ Panama to Mazatlan. 



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

 erroneously given " Senegal/' N. .Tanthostoma, Gray (fig. 165), 

 is also synonymous. 



X. TEGULA, 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 w r ithin, but showing the whitish band ; lip and 

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



Galapagos; Panama (Cuming); Mazatlan; Southern Coast 



of California. 



