250 bulletin: museum of comparative zoology. 



interest in view of the well-known general resemblance between the 

 Pacific and Indian oceans, as shown by their Fishes, and particularly 

 their Echinoderms, of which the same species are known to occur off 

 Zanzibar, and oft" the west coast of South America. 



ALPHABETICAL LIST OF SPECIES. 

 Htdkomeddsae. 



PAGE 



Aeginella dissonema Haeckel 2G1 



Aglaura octagona, sp. nov . 257 



Aglaura prismatica Maas 257 



Berenice, sp. ? 252 



Bougainvillia, sp. 1 252 



Dipurena fragilis Mayer 251 



Eirene danduensls, sp. iTov 254 



Euphysa tetrabrachia, sp. nov 251 



Eutiraeta lactea, sp. nov 253 



Gonionemus pelagicus, sp. nov 256 



Liriope hemisphericus, sp. nov .... 259 



Liriope indica, sp. nov 258 



Messonema coerulescens Brandt 256 



Oceania brunescens, sp. nov 253 



Oceania virens, sp. nov 252 



Pegantha simplex, sp. "nov 260 



Rhopalonema typicum Maas 256 



Timoides agassizii, gen. et sp. nov 254 



Turritopsis, sp 252 



SCTPHOMEDUSAE. 



Aurelia maldivensis, sp. nov 261 



Nausitlioe punctata KoUiker 263 



SiPHONOPHORAE. 



Diphyopsis appendiculata Agassiz and Mayer 265 



Physalia megalista Peron et Lesueur 265 



Porpita lutkeana Brandt 264 



Ctenophorab. 



Beroe, sp 267 



Bolina ovalis, sp. nov 265 



Bolina sp 266 



Cestus pectenalis, sp. nov 267 



Ocyroe pteroessa, sp. nov 266 



