. Asli Goze 
By Rost. M. Larne, M.A., B.Sc. 
THESE are the first seaweeds that have been dredged at greater depths 
than 10 fathoms off the New Zealand coast, and they are on that 
account of considerable interest. It is well known that the depth 
to which marine alg descend depends upon the amount of light 
received, and that those which can grow in the deepest shade near 
the surface are those which penetrate to the greatest depths. It is 
a mistake to suppose that new and rarer forms will be found as we 
collect at greater depths. This may be true to a limited extent in 
depths between low-tide mark and 5 or 10 fathoms, but, as the follow. 
ing list shows, it is not true of greater depths. All the species in it 
are common or comparatively common plants on the coast a little 
below low-tide mark. 
Seaweeds are rarely found deeper than 50 fathoms. Kjellman, 
however, obtained Ptilota pectinata off Spitzbergen in 150 fathoms ; 
and there are several other cases recorded of seaweeds being obtained 
at greater depths than 100 fathoms. 
It will be observed that the greatest depth recorded in the accom- 
panying list is from 68 to 78 fathoms. The fact that the trawling 
was done in midwinter doubtless accounts to some extent for the 
small number of species, 
CAULERPACE. 
CauLERPA, Lamouroux, 1809. 
Caulerpa Brownii Endlicher. 
Caulerpa Brown Endlicher, Gen. Plant. Suppl., 1837-45 ; Van Bosse, 
Monographie des Caulerpes, 1893, p. 306. 
Caulerpa furcifolia Hook. f. and Harv., Fl. N.Z., i, 1855, p. 260. 
Stat on 83, Chatham Islands. 
(Australia, Tasmania, New Zealand.) 
* Pending the revisal of the rules for the nomenclature of the algex, the 
species in this list are assigned to the author that first placed them in their present 
genus. 
