17 



ZOOPHYTES. 



Actinia bellis. Caryophyllia cyathus. 



crassicornis. Flustra foliacea. 



gemmacea. Sertularia argentea ? 



mesembryanthemum. Tubularia indivisa ? 



parasitica. Solaster papposa. 



nivea. Ophiocoma rosula. 



Anthea cereus. 



In reviewing this list it is to be remarked, that among 

 the Mammaha has occurred a very singular addition to 

 the Pachydermatous group, so rare, that there is reason to 

 believe that no Museum in Europe contains an example of 

 it. This animal, Potamochoerus pictus of Gray, was obtained 

 in the River Cameroons, and further illustrates the varia- 

 tions of the Hog form, of which so remarkable an instance 

 has been for some time exhibited in the Society's Collec- 

 tion, by their unique group of Phacochoeres. But the 

 most interesting and novel characteristic of progress in the 

 Menagerie is indicated by the two last divisions of the 

 List, in which it is hoped that the next Annual Report 

 will exhibit a much more extended series. The experiments 

 which have been instituted during the winter and sprino- 

 with reference to the conservation of marine and fresh- 

 water animals have been so uniformly successful, that the 

 Council have now nearly completed a system of plate-glass 

 tanks, in which the greater part of the British Zoophytes, 

 Crustacea, Mollusca, and a considerable number of the 

 Fish, will in the course of time be exhibited to Visitors, 

 under the most favourable circumstances for observation. 



As an instance of the results which may be expected 

 from this excessively interesting addition to the Society's 

 Establishment, the Council are able, through the kindness 

 of Count Montizon, to exhibit the first Photograph of a 

 living Fish which has been produced in England, and pro- 

 bably in Europe. The great advantage to the study of 

 Ichthyology which is deducible from this application of the 

 Art is too obvious to require further comment. 



The interest taken in the Collection by the distinguished 

 patrons who have contiibuted to it in former years conti- 

 nues to be unabated, and many new correspondents in 

 various parts of the world have already given proof of their 



