44 - HEBRA. 



tlinated to the longitudinal ribs. Ash-colur tu dark fhooolato, 

 mostly liuht Isandod between the spiral rows of tubercles. 



Length. •U-'T inch. 



Jiidiioi Ocean, Philippines, Neio Zealand, Central Polynexia. 



X. rihe.r. Keeve. not Say (tig. 209). is an elongated, immature 

 shell of this species : to which I refer also. X (jeniciilata^ A. 

 Ad. (tig. 210), and N. .-iislroult^a, G. and H. Xevill (tig. 211). 

 X. scalpta, Marrat (fig. 212 . is described as passing into X. mib- 

 f<pi)io.<a on the one hand and X. corticata on the other. 



X. Ml lucATA, Quoy and Gaimard. PI. 14, figs. 214-218. 



Whitish or yellow^ish, with narrow bands or blotches of chest- 

 nut ur chocolate. 



Indian Ocean, Maduijascar, New Ireland, Polynesia. 



Mr. Marrat considers this a variety of X. >iHbHin)iO)<a, Lam., 

 and he is probably correct — yet the less tleveloped shoulde)', 

 more swollen periphery-, more numerous, smaller and decidedly 

 prickly tubercles, as well as lighter color, constitute characters 

 deserving of recognition, J think. With it are to be united X. 

 horrida, Dunker (fig. 21G), X. Granerl, Keeve (fig. 217), and X. 

 cit?-ta, Gould (fig. 218). 



N. Gruneri, Dunker. Fl. 14. figs. 21'.)-222. 



White or yellowish, sometimes obscurely banded or spotted. 



Length. -(jS-'S inch. 



PJiilippines. 



Distinguished b^- its regular, close sculpture of bead-like 

 tubercles, forming both longitudinal and revolving series. The 

 synonyms are X. hiapida^ A. Ad. (fig. 220), X. Webjei, Petit 

 (fig. 221), said to come from West Coast of Africa (doubtful), 

 and X. acinosa, Gould (fig. 222). 



N. Kriii.NATA, A. Ad. PI. 14, figs. 228, 224. 



Yellowish white, longit n<liii:dly fiecked with brown. 



lieiiglh. "7 inch. 



Philippines, China, Andaman Isles. 



This pui)a-likt' species is a Ibrm rather unusual in the genus: 

 it may l)e only a scalarifoim monstrosity of X. muricata. 1 

 have not seen specimens of it. Those from the Andamans are 

 said to be proportionally shorter than the type. X. nodulifera, 

 Phil, (fig. 224 , is probabl}^ the same species : it is said to come 

 from China. If identical, it will have priority. 



