21 1 
not sufficiently washed and released from crystals of sodium. I 
hardly have any doubt that the spicules with serrated edge, figured 
by Hel fer, really are some such that have not been sufficiently 
cleaned. 
The specimen of „ Miilleria parvula“, recorded by Erwe from 
Western Australia appears to be identical with the Hawaiian form, 
10. 
9. 
Fig. 9. Tentacle of .4. aegyptiana Helfer. 15 /i. — Fig. 10. Calcareous spicules 
of A. aegyptiana Helfer. 170 /i. 
at least I have been unable to find any noteworthy difference be- 
tween them. 
Whether the Argiodia parvula (Sel.) mentioned by Pearson 
(Notes on the Holoth. of the Indian Ocean. II. Spol. Zeylanica. 
IX. p. 177) from the Maldives and the Seychelles is also ident¬ 
ical with the Hawaiian form I cannot decide; I have not seen any 
of the specimens and the information given by Pearson in the 
said paper and in a letter to Dr. Mortensen does not seem 
to me sufficient for deciding which species it really is. But it ap¬ 
pears certain at least, that it is not identical with the West Indian 
species; probably it is Actinopyga difficilis (Semper). 
That the Miilleria parvula of Bedford from Funafuti could 
hardly be the same as either the true Westindian A. parvula or as 
the Pacific form thus designated by Fisher, was fairly evident al- 
ready from description and figures, given by Bedford. — An 
examination of the specimens received from Cambridge gave the 
14 * 
