167 
some Sponges from the Auckland Islands«. Ann. Mag Nat Hist 
Ser. XIX). 
Stylohalina conica Kirk comes very near to Hymeniacidon indis- 
tineta mihi; but this latter species differs from the former in having 
more distinet spicula-tracts; in the lacking of conical elevations with 
osculum at the apex; in having in places small mammiform pro¬ 
cesses, in the shape of the styli which is herc more abruptly taper¬ 
ing. I do not doubt that Kirk’s genus Stylohalina is identical with 
Hymeniacidon Bwk., that therefore Stylohalina conica Kirk and 
Hymeniacidon indistineta mihi are closely allied species 
To the already known 7 species from the Auckland- and Camp- 
bell-Islands the present paper adds 40 species, 9 of which are 
previously known, 3 of uncertain position, and 28 new species; 
this great number of new species will not astonish the spongio- 
logist, who is familiar with the faet, that the Porifera is a group, 
which, like f. i. the Compositae, is varying and splitting into small 
systematic entities in a degree perhaps not known elsewhere in 
the animal kingdom. 
The faet, that one collector in comparatively few days has 
been able to find 40 species, different from the 7 previously known 
makes it probable that many more species will prove to oceur 
there. 
The zoogeography I prefer to deal with in a paper in prepar- 
^tion on sponges from New Zealand. 
12—4—1923. 
