358 
Pseudopsolus macquariensis. R. Per ri er. 1904. Holoth. Antarct. Mus. 
d’hist. nat. Paris. Ann. Sc. nat. Zool. 9. Sér. 
I. p. 111. 
Stewart Island. 2 specimens, collected by Professor Ben ham. 
To the very careful description given by Den dy and Ludwig 
I have but very little to add. 
As stated above (p. 335) under Cucumaria brevidentis, var. carn- 
leyensis, there is some reason for believing that the labelling of 
these specimens is unreliable, and that they 
really came from Macquarie Island. Other- 
wise, the occurrence at Stewart Island of this 
species would not be very surprising, as it 
might easily be transported on large algæ, 
being a littoral form. 
Calcareous deposits, like those figured by 
Den dy, are found in the latero dorsal inter- 
radii, though rather sparingly, in one spe- 
cimen; in the other I did not find any. Tent- 
acles and tubefeet entirely devoid of spicules 
Fig. 41. Genital coecum of L U d W 1 g. 
Pseudopsolus niacquari- 
ensis. lyi. The interesting faet that this species is 
hermaphroditic was discovered by Ludwig, 
who also pointed out that the hermaphroditism is successive. My 
specimens alford some interesting information about this point. The 
younger of the specimens, 13 mm long (tentacles extended) has 
some few (7) female genital coeca, 3—4 mm long, each contain- 
ing two very large, somewhat oval eggs, about I.5 mm in diameter, 
and one or two young eggs in the pointed end of the tube (Fig. 41). 
Besides, there are about the same number of quite small genital 
coeca, each with two young eggs, and further two young male genital 
coeca. In the second specimen, 19 mm long (also fairly well ex¬ 
tended), there is a number of long male genital coeca, filling out 
the body cavity, and a number of very short, female genital coeca 
with quite small eggs — as found by Ludwig. This proves that 
the species at first produces eggs, then sperma, and then, evidently, 
again eggs. 
