383 
folded. There is 1 Polian vesicle and 1 stone canal. Ciliated funnels 
(Fig. 60.a) only in the right dorso-lateral interradius, where they 
are arranged in a close series along the ventro-lateral radial muscle. 
Gonads a few slightly branched, very long tubes, which fill up the 
body cavity nearly to the end of the intestine. The genital duet 
opens upon a small papilla between the bases of the dorsal tentacles. 
The eggs are very small (ca. O.oi mm) and very numerous which 
indicates that this species may probably have a typical pelagic larva 
(Auricularia). 
The three localities: Auckland Harbour, Plimmerton and Stewart 
Island, indicate rather certainly that the species is distributed along 
all the coasts of New Zealand. 
Evidently this species is nearly related to Trochodota japonica 
(v. Marenz.), and since the latter species is recorded from Port 
Jackson, the suggestion lies at hånd that they might be identical. 
This they are, however, not. Having myself collected some speci- 
mens of the species in question, I have been able to undertake a 
direct comparison between the New Zealand and the Port Jackson 
specimens; the result is that they can by no means be regarded 
as identical. The Port Jackson species differs from the New Zea¬ 
land species in its colour, in the more numerous sigmata in the 
papillæ, in the digits of the tentacles being all nearly of the same, 
considerable length, in the spicules of the tentacles being very 
scarce and not divided at the ends. A doser study of its anatomy 
may disclose more points of difference, but what has been pointed 
out already will suffice to show definitely that the two forms are 
not identical. I also doubt very nauch whether the Port Jackson 
species is really identical with Trochodota japonica, but as I have 
no material for comparison of the Japanese form, I shall not try 
to decide this question, which does not concern us directiy here. 
I dedicate this new species, which represents a very interesting addi¬ 
tion to the New Zealand fauna, to the late Professor Den dy, to whose 
studies we owe most of our knowledge of New Zealand Holothurians. 
26. Kolostoneuva novæ^zealandiæ (Dendy & Hindle). 
Rhabdomolgus novæ-zealandiæ. Dendy & Hindle. 1907. Add. Knowl. 
N. Z. Holoth. J. Linn. Soc. Zool. XXX. 
p. 1 13. PI. 1 1.1—4 PI- 13.16-17- PI- 14.22—29- 
