pnRONTis. 39 



A^ vUtata, A. Ad. (fiti-. 159), is a synonym. 



N. SEROTiNA, A. Ad. PI. 12, tig. 160. 



Yellowish brown, sliinino-, lighter at the sutures. 



Length, -ft-'l inch. 



Australia, Cape of Good Hope. 



N. LABiATA, A. Ad. PI. 12, figs. 161, 162. 



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



middle. Length, -t inch. 



Malacca. 

 N. Terehroides^ 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, tnrrited, Avith 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 Avith tlio species. 



Suhfrpiiiis Phrontis, II. and A. Adams. 



N. LUTEOSTOMA, Brod. and 8owb. PI. 12, figs. 163-165. 



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



narrow white band ; lip. and expanded callus orange. 



Length, "9-1 "2 inches. 



Panama to Mazatlan. 



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



erroneously giA-en " Senegal. " N. xanthostoma, Gray (fig. 165)'. 



is also synonymous. 



^ N. TEGULA, Reeve. PI. 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. 



Oalapagos; Panama (Cuming); Mazatlan; SoutJiern Coast 



of California. 



