Marine Algae.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 497 



Desmarestia Willii, Reinsch. 



Desmarestia viridis (Lamx.), Hook. i. & Harv., Fl. Antarct., vol. ii, p. 178, 1847. 

 D. Willii, Reinsch, Meeresalgen Flora von Sud-Georgien, p. 401, 1890 ; 

 Skottsberg, Subant. und Antark. Meeresalgen, p. 16, 1907. 



Auckland Islands. (Tierra del Fuego, Falkland Islands, South Georgia, Ker- 

 guelen Land, Victoria Land, Franklin Island.) 



This species, obtained by Hooker at the Auckland Islands, was not collected 

 by us. By the earlier investigators it was considered to be identical with D. viridis 

 of the Northern Hemisphere ; but Skottsberg, following Reinsch, considers that, 

 though the two plants closely resemble each other, the southern form is worthy of 

 specific rank. He has examined some of the southern forms collected by Hooker, 

 and considers they must be assigned to this species. 



Fam. DICTYOSIPHONACEAE. 

 DiCTYOSiPHON, Greville, 1830. 

 Distribution. — Widely distributed in northern and southern seas. 



Dictyosiphon fasciculatus, Hook. f. & Harv. 



Dictyosiphon fasciculatus, Hook. f. & Harv., Fl. Antarct., vol. i, p. 178, tab. 69, 1847. 



Auckland Islands ; Hooker, R. M. L. (Kerguelen Land, Falkland Islands.) 

 (Identified by A. Gepp.) 



This species appears in Harlot's list of the seaweeds of Cape Horn, but does not 

 seem to have been recently collected in Kerguelen Land, as it is included neither 

 in Dickie's nor Reinbold's(i) list of the algae of that region. Moreover, Skotts- 

 berg, who has examined some of Hooker's type specimens, considers that this species 

 is either Scytothamnus australis or must at least be brought within the limits of the 

 genus Scytothamnus. Unfortunately, the specimens of D. fasciculatus named by 

 Mr. Gepp, and collected by myself, have not yet been returned to me, when the 

 point might be definitely decided. Scytothamnus australis is found in Tierra del 

 Fuego, Falkland Islands, South Africa, New Zealand, Chatham Islands. 



Fam. CHORDARIACEAE. 

 Chord ARIA, C. Agardh, 1823. 

 Distribution. — All extra -tropical seas. 



Chordaria flagelliformis, C. Agardh. 



Chordaria flagelliformis, C. Ag., Syst. Alg., i, p. 166, 1823 ; Hook. f. & Harv., 

 Fl. Antarct., vol. i, p. 180, 1847. 



Campbell Island ; Hooker (not recorded from New Zealand or Auckland Islands). 

 (North Atlantic, Kamschatka, Japan, Cape of Good Hope, Chili.) 



The above distribution shows that the Campbell Island habitat requires con- 

 firmation. 



(^) " Die Meeresalgen der Deutschen Tiefsee Expedition, 1907." 

 33— S. 



