THE ISLAND OF MANGAIA. " 33 



Halimeda macroloba, Due. 



Geoff, distr. W.and S. Australia ; Madagascar ; Red Sea ; Indian Oceai 

 Keeling Islands ; Friendly Islands. 



H. opuntia, Lamx. 



Geoff, dist. Warmer parts of Atlantic ; Mediterranean ; Red Sea ; &c 



CODIUM TOMENTOSUM, Aff. 



Geoff, distr. Tropical and Temperate. 



Occurs in both hemispheres : Antarctic islands. 



TJLVACEiE. 



Ulva latissima, L. 



Mr. Gill, in a note, states, " introduced in 1852, < 

 ship from the Antarctic was wrecked on the reef n 



Widely 



YALONIACEiE. 



MlCRODICTYON MoNTAGNEI, Harv. 



Geoff, distr. Friendly Islands. 



CONFEEVACE^:. 



Cladophora pellucida, Ktz. 



Western 



OSCILLABIACE^ 



Lyngbya tropica, Ktz. 



Geogr. distr. Gulf of Guinea. 



Of the species recorded here, the majority are forms chiefly 

 found in various parts of the S. Pacific, and a few, such as 

 Codmm, &c, of general occurrence in both hemispheres. 





MNK. JOURff. BOTANr, VOL. XV. D 



