51 



GENUS HYDROCENA. Parreijss. 



215. Hydrocena parvula. Monsson. Upolu 



IsL, Navigator's Isls. 



216. Hydrocena solidula. Pfeiffer. Lord 



Hood's Isl. 



GENUS oMPHALOTROPis. Pfeiffer, 



217. Omphalotropis acutilirata. Pfeiffer. 



New Hebrides Isls. 



218. Omphalotropis annatonensis. Pfeiffer. 



New Hebrides Isls. 



219. Omphalotropis bifilabris. Mousson. 



Upolu Isl., Navigator's Isls. 



220. Omphalotropis bilirata. Jfowssow. Upolu 



Isl., Navigator's Isls. 



221. Omphalotropis bulimoides. Jacq. San 



Christoval IsL, Solomon Isls. 



222. Omphalotropis cerea. Pfeiffer. Nor- 



folk Isl. 



223. Omphalotropis eonoidea. Mousson. 



Upolu Isl., Navigator's Isls. 



224. Omphalotropis exquisita. Pfeiffer. . 



Lord Howe's Isl. 



225. Omphalotropis granum, Pfeiffer. 



Isle of Pines. 



226. Omphalotropis navigatorum. Pfeiffer. 



Navigator's Isls. 



227. Omphalotropis ovata. Mousson. Fiji 



Isls. 

 223. Omphalotropis parva. Mousson Fiji 



Isls. 



229. Omphalotropis perforate. Mousson. Navi- 



tor's Isls. 



230. Omphalotropis rosea. Gould. Fiji Isls. 



231. Omphalotropis vallata. Gould. Vavau 



Isl., Friendly Isls. 



