46 III MA. 



N. scABRiusouLA, Powis. PI. 14, Hgs. 238-235. 



Brownish, or usually ash-color, with a superior white band, 

 which is occasionallj' visible on the spire ; revolving lines some- 

 times chestnut-brown. Tjcngth. •()-'T5 inch. 



PfDiama. 



X. collaria, Gould (lig. 234), and N. Stimpsoniana, C. B. Ad. 

 (tig. 235), appear to be equivalent forms. 



X. NODATA, Hinds. PI. 14, tig. 230. 



Yellowish brown, with one or two i'aint chocolate bands. 



Length, -8 inch. 



Straits of Malacca. 

 N. FASCiATA, Lam. PI. 14. figs. 237, 238. 



"Whitish, with a central chestnut l)and. tinged with chestnut 



at the base. Length, MJo-'g inch. 



Sout'i Auntralia. 



The whole surface of this species is beautifully granulated. 



X. FKSTiVA, Powis. Pi. 14, ligs. 239-242. 



Longitudinal ribs coarsely latticed by strong, close, rounded, 

 revolving riblets. Whitish, interstices of riblets chestnut or 

 chocolate color; columella and lip white. Length, -T-'SS inch. 



Japan.. 



X.fenliini is said to have been dredged by Cuming at Panama 

 and St. Elena (in sandy mud at six to ten fathoms), but I am 

 not aware that either locality has been confirmed. The next 

 species (N. dentifera. Powis) is a native of those regions, but is 

 constantly distinguished by being thinner, more swollen, and 

 dark chocolate color Avithin and without. The Japanese habitat 

 is undoubted. The synonyms are N. lirata. Punker (fig. 240). 

 N. dealbala, A. Ad. (fig. 241 ),a somewiiat narrower form, usually 

 white, with a central brown band — it might perhaps be dis- 

 tinguished as a variety, and N. acutidentata , E. A. Smith (fig. 

 242 '. 

 X. DENTiFERA, Powis. i'l. 14. tigs. 243-245. 



Chocolate-brown within and without, with occasionall}^ an 

 obscure lighter central band. Length, •T--85 inch. 



Panama to Callao, Pe7m. 



N. unidentata, Powis (fig. 244), is an immature shell, and a 

 still younger one is N. Txchudii, Troschel (fig. 245 \ To these 



