227 



Q. M. C. EXCURSIONS. 



List of the Principal Objects Obtained. 



Communicated by Dr. M. C. Cooke and Mr. W. G. Cocks. 



(Read April 27th, 1883.) 

 Regent's Canal and Botanic Gardens, April 7th, 1883. 



Scenedesmus quadricauda, Breb. 



Stigeoclonium protensum, Dillw. 



Spirogyra nitida, Link. 



Conferva bombycina, Ag. 



Drilo siphon mascicola, Kutz. 



Oscillaria tenuis, Ag. 



Oscillaria Frolichii, Kutz 



Cosmarium margaritiferum, Turp. 



Closterium moniliferum, Ehrb. 



Vaucheria sessilis (Vauch.) 



(Edogonium, sp. 



Spirogyra, several species, sterile. 



Cladophora fracta, Kutz. 



Daphnia Schafferi, an uncommon and beautiful form, remarkable 

 for its long, serrated tail. 



Daphnella wingii, a rare form with very large arms or swimmers, 

 and having a singular habit of lying them flat against the body 

 and simulating death. 



Brachionus, sp., in immense numbers, and very fine. 



Euchlanis triquetra. 



Stentor midleri, in great numbers. 



CEcistes crystallinus. 



Melicerta ringens . 



Rotifers, various. 



Stellate hairs from stem of Ar alia papyf era. 



