402 
are recorded in Koehler’s work on the Ophiuroidea of the Au- 
stralian Antarctic Expedition — I have been able to State the oc- 
currence at the Macquarie Island of Notechinus novæ-zealandiæ 
(Echinoidea, p. 157). A Holothurian, Pseudopsolus macquariensiSy 
was described from there by Den dy, and in the present paper is 
further recorded — though with some doubt as to the correctness 
of the locality — Cucumaria brevidentis, var. carnleyensis, while in- 
versely Pseudopsolus macquariensis is recorded, likewise with some 
doubt as to the correctness of the locality, from Stewart Island. 
Of these 8 species of Echinoderms thus far known from Macquarie 
Island at least five are endemic, three of them even belonging to 
an endemic genus. One, Notechinus novæ-zealandicCy is widely di- 
stributed in the New Zealand region, another, Sporasterias antarctica, 
occurs in the Magellanic region, while a third species, Cycethra 
macquariensis, belongs to a genus characteristic of the Magellanic 
region, not represented in the New Zealand region proper. These facts 
bear testimony against any doser relation between the Macquarie 
Island and New Zealand, at least as far as their Echinoderm faunas 
are concerned. The occurrence of Notechinus also at Macquarie 
Island is very easily explained through the transport of the pelagic 
larvæ — its eggs are very numerous and small, only O.os mm, 
which proves beyond any doubt fhat it must have pelagic larvæ —, 
a transport which would hardly be impossible in recent times and 
still less so during the period of elevation of the great New Zea¬ 
land Plateau in early Tertiary times, when the distance was con- 
siderably smaller. Also the — still somewhat problematic — existence 
of Pseudopsolus macquariensis at Stewart Island and Cucumaria 
brevidentiSy var. carnleyensis at Macquarie Island is easily explained 
as being due to transport on floating algæ. Benham, it is true, 
has thrown doubt on the possibility of such transport. “Any one 
who has had experience of the size and tremendous power of the 
waves in these Southern latitudes, and of the terrific windstorms 
that constantly rage over these seas, will be in a position to re- 
cognize the high degree of improbability that seaweed could be 
carried from island to island by the “West-wind trift” without be¬ 
ing torn into fragments”. (Report on the Oligochæta. Subantarct. 
Isl. of New Zealand. I. p. 294). I may object to this statement my 
own direct observations on various Echinoderms, a. o. Invertebrates, 
