680 REPORT—1885. 
STUART O. RIDLEY. 
1881, Account of the zoological collections made during the survey of H.M.S- 
‘Alert’ in the Straits of Magellan and on the coast of Patagonia. 
Proceedings of the Zoological Society of London, January. In two 
parts: I. Polyzoa, pp. 44-61, pl. vi.; II. Coelenterata, pp. 101-107. 
In the Polyzoa part, Mr. 8. O. Ridley establishes a new genus— 
Gigantopora, Ridley—for the placement of a species described and figured 
G. dyricoides, Ridley ; and in his observations he says that Hippothoa 
fenestrata, Smitt, ‘ Flor. Bryoz.’ must also be ranked under the genus. 
1881. Polyzoa, Coelenterata, and Sponges of Franz Josef Land. ‘ Ann. Mag. 
Nat. Hist.’ June, pp. 442-457, pl. xxi. 
Several species of Cheilostomata and three of Cyclostomataare described, 
amongst the latter young colonies of what Mr. Ridley believes to be 
Heieropora pelliculata, Waters (?). ‘This genus,’ says the author, ‘ is 
already known from New Zealand, Australia, and the Japanese seas, and 
in the fossil state: its recent distribution is now extended to the Arctic 
seas,’ p. 453. 
1882, Notes on Zoophytes and Sponges obtained by Mr. F. Day off the east coast 
of Scotland. ‘ Linnzean Soc. Jour. Zoology,’ vol. xvii. pp. 105-108. 
Contains a brief note on Polyzoa. 
I am fully aware that there are several bibliographical papers omitted 
in the above list. Many of these, however, are particularly of a struc- 
tural character, and I was in hope that I should have been able to include 
these, with special remarks upon them, in some future Report. At pre- 
sent my labours are so far complete up to this point only. The structural 
peculiarities of several polyzoal groups, together with remarks on the 
Ctenostomata, must remain in abeyance, for the present at least. There 
are a few papers not recorded above that may be specially referred to. 
Dr. Jullien’s work on ‘Recent Species’ I was not able to procure or 
even get a sight of; and equally inaccessible were D’Orbigny’s ‘ De- 
scriptions of South American Polyzoa’; the writings of Krauss, Mene- 
ghini, W. Stimpson’s ‘ Invertebrata of Grand Manon,’ Verrill’s ‘ Recent 
Additions to Marine Invertebrata,’ or Risso’s ‘Fauna of the Mediter- 
ranean,’ &c. Mr. Quelch’s labours on the group, however, may be men- 
tioned, though his writings may be few in number. His remarks on 
Spiralaria, Busk—a peculiar polyzoon not as yet classified—and on 
certain species of Schizoporella (‘Ann. Mag. Nat. Hist.’ 1884), merit 
attention ; so also references to Dr. Jullien’s labours in Mr. A. W. Waters’s 
papers on ‘Fossil Bryozoa’; and special reference should be made te 
the article on Polyzoa in the ‘ Encyclopedia Britannica,’ by Dr. Ray 
Lankester, F.R.S. Another paper by Mr. A. W. Waters, F.G.S., just 
to hand (November 1885), may be mertioned. This is one on the 
‘ Avicularian Mandibles,’ &c. and a very important one withal.—Jouwrn. 
Roy. Mic. Soc. Ser. 2, vol. v. pp. 774-779. 
