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



ALC^E. 



Very few sea-weeds were collected by the Expedition in this region. Dr Dickie 

 enumerates 1 the following, mostly quite common ones, from Arrou : — 



Sargassum dentifolium, Turn. 1 Turbinaria vulgaris, J. Agardh ; Hormophysa 

 articulata, Kiitz. ; Padina pavonia, Linn. ; Dictyota dichotoma, Huds. ; Hydroclathrus 

 cancellatus, Bory ; Amphiroa fmgilissima, Linn. ; Melobesia verrucata, Lamour. ; 

 Caulerpa clavifera, Agardh ; Halimeda macroloba, Dene. ; Halimeda opuntia, Lamour. ; 

 Enteromorpha compressa, Grev. 



1 Journ. of the Linn. Soc. of Lond., xv. pp. 241, 2-42. 



