274 THE VOYAGE OF H.M.S. CHALLENGER. 



Jania rubens, Larnour. 



Jania rubens, Lamour. ; Kutz., Sp. Alg., p. 709 ; Dickie in Journ. Linn. Soc. Lond., xv. p. 239. 



Admiralty Islands. — Shores of Europe and America, Eed Sea, Indian Ocean, and 

 Pacific. 



Desmia ambigua, Grev. 



Desmia ambigua, Grev. ; Dickie in Journ. Linn. Soc. Lond., xv. p. 239. 



Admiralty Islands. — Indian and Pacific Oceans. 

 Gracilaria dactyloides, Sond. 



Gracilaria dactyloides, Sond. ; Harv., Phycol. Austr., ii. p. 80 ; Dickie in Journ. Linn. Soc. Lond., 

 xv. p. 239. 



Admiralty Islands. — A common West Australian species. 



Gracilaria confervoides, Grev. var. 1 



Gracilaria confervoides, Grev. var.? Kutz., Phycol. Gener., p. 408, Sp. Alg., p. 772 (Sphcer o coccus); 

 Dickie in Journ. Linn. Soc. Lond., xv. p. 239. 



Admiralty Islands. — Gracilaria confervoides is found in the temperate seas of both 

 hemispheres, rarer in the tropics, yet very widely spread. 



Gracilaria corniculata, J. Agardh. 



Gracilaria corniculafa, J. Agardh, Sp. Alg., ii. p. 595 ; Dickie in Journ. Linn. Soc. Lond., xv. p. 239. 



Admiralty Islands. — Austral 

 Corallopsis australasica, Sond. 



Corallopsis aust ralasica, Sond. in Linnsea, xxv. p. 687 ; Harv., Phycol. Austr., v. p. 35 ; Dickie in 

 Journ. Linn. Soc. Lond., xv. p. 239. 



Admiralty Islands. — Australia. 



Gelidium rigidum, Vahl ? 



Gelidium rigidum, Vahl? Dickie in Journ. Linn. Soc. Lond., xv. p. 239. 



Admiralty Islands. — This is probably a variety of the almost cosmopolitan Gelidium 

 corneum, Lamour. 



Hypnea divaricata, Grev. 



Hypnea divaricata, Grev.; J. Agardh, Sp. Alg., ii. p. 448; Harv., Phycol. Austr., v. p. 36; Dickie 

 in Journ. Linn. Soc. Lond., xv. p. 239. 



Admiralty Islands. — West Australian coasts, Indian Ocean, Gulf of Mexioo. 



