TR1TIA. 57 



middle, and the other somewhat below ; aperture bluish white, 

 showing the external banding. Length, 13'5 mill. 



Patagonia. 

 X. T^NIOLATA, Phil. PI. 18, fig. 373. 



Yellowish brown, tipped with chocolate on the nodules. 



Length, 11-U; mill. 



Chonos 1*1. and So. Patagonia. 

 Is not -V. ( 1 oj>]jin</t ri the sained 



' Japan, l'//i!>j>pi//e,,i, Ln,di<in Oct-an, W. Africa. 

 X. NIVEA, A. Ad. PI. 17, lig. :!2r>. 



White, solid. Length. I inch. 



Philippine*. 

 Very like N. rrfirulafa. Linn., of Europe. 



X. MUNIERIANA. Orosse. PL 17, tig. 331. 



White, with a scarcely appnrent pale brown revolving band. 



Length. 1 (> mill. 



So. Australia. 



X. SIGMATA, Danker. PL 17, figs. 327, 32S. 



Yellowish brown, with a pale central bnnd. Length, "4 inch. 



Africa. 



"Very like 'N. inrrnt^ntci, but without the external lip-vnrix. 

 N. reyitlnris, Kiister (rig. 328), is probably the same. 



X. TURJJIXKA, Gould. V\. 17, ilg. 32i). 



Shell white. Length. '.) inch. 



Afi 



1 am not acuiuainted with this species. The precise locality 

 is unknown. 



X. KOISSYI. Deshayes. PI. 17, tigs. 330. 33i>. 



Whitish, rntlier thin ; clathrate. Length. 15 mill. 



[:.ixt Indie*. 



N. flonu'nulfi. Tapparone-Cflnefri (fig. 332). does not. appear to 

 differ. 

 X. PUMILIO, E. A. Smith. PL 17, fig. 333. 



Whitish corneous. Length. 3 '5 mill. 



WydnJt, W. Aj . 



Is this really distinct from the preceding species-' At uny 

 rate the shell is so decidedly immature that it ought not to have 

 been described. 



