Or THE l CHALLENGER ' EXPEDITION. 245 



Rhodomelace^j 



Neurymenia fraxinifolia, Mertens. 



LAURENCIACEiE. 



Laurencia concinna, Mont. 



Sph^rococcoide^e. 



Botryocarpa prolifera, Grev. 

 Gracilaria dactyloides, Sonder 



SqUAMARIACEJE 



Peyssonnelia rubra, Grev. 



CrYPTONEMIACEjE 



Chrysymenia uvaria, Wulf. 



Siphonace^:. 



Caulerpa plumaris, Forsk. 

 Halimeda Opuntia, Lamx. 



Valoniaceje 



Valonia fastigiata, Harv. 



- 



Anadyomene flabellata, Lamx. 



Bather imperfect, but sufficiently characteristic 



Oscillariace^: 



Lyngbya majuscula, Harv. 



" The following were dredged in 18 fathoms off Gigantes Islands, 

 Philippines, on the voyage from Manilla to Cebu ": 



Fucacejb. 



Sargassum biforme, Turner. 



Fragments apparently of this species 



Dictxotacejc. 



Zonaria variegata, Lamx. 



