200 PROF. G. DICKIE OTT AJu&M 



IiAlTRENCIACEiE. 



Ptilonia magellanica, Mont. 



Swain's Bay. 



Geog. dist. Cape Horn and Falklands. 



CORALLINACE^. 



Melobesia Antarctica, H.f. <$* Harv. 

 On Ballia &c, Swain's Bay. 



M. lichenoides, Ell. et Sol. 



A single example, very luxuriant, having a surface of about 3 

 inches square, incrusting two sponges (Microciona atrosariguinea, 



Bk., and Halichondria incrustans, Jtn.), both British. It agrees 

 in habit, texture, and character of keramidia with the species. 



Geog. dist. Britain ; France ; Mediterranean ; Norfolk Island. 



M. KERGUELENA, n. Sp. 



Partim adnata, subconcava, circumscriptione orbicularis margine parce 

 undulata, keramidiis numerosis, conspicuis, subcojicentrice distributis. 



The description is taken from a specimen nearly entire and 

 about two inches in diameter ; there are fragments of others less 

 regular in outline, probably owing to inequality of the surface of 

 attachment. All are dull yellow with shades of pale red, and in 

 texture hard and inflexible. 



SPH-aBROCOCCOIDEja. 



Delesseria Lyallii, H.f. 8f Harv. 

 Observatory Bay and Swain's Bay. 

 Geog. dist. Falkland Islands. 



D. Davisii, H.f. Sf Harv. 



Swain's Bay. 



Geog. dist. Cape Horn ; Falklands. 



D. QUERCIFOLIA, Bory. 



Swain's Bay. 



Geog. dist. Cape Horn and Falklands. 



D. CRASSINERVIA, Mont. 



Swain's Bay. 



Geog. dist. Auckland and Campbell Islands ; Cape Horn ; Falklands* 



Nitophyllum fusco-rubrum, H.f 8f Harv. 



Swain's Bay ; abundant. 



Geog. dist. Kerguelen only. 



