32 



Stentor polymorphus. 

 „ Rceselii. 

 < Strombidinopsis gyrans. 

 Stylonichia fisseta. 

 „ mytilus. 



Trachelitis ovum. 

 Trichodina pediculus. 

 Urocentum turbo. 

 Vaginicola crystallina. 

 Vorticella nebulifera. 

 Zoothamnium, sp. 

 PORIFERA. 



Spongilla fluviatilis. 

 CCELENTERATA. Hydro- 



ZOA. 



Supposed polyp, stage of 

 Limnocodiwn Sowerbii. 

 VERMES. Rotifera. 

 Brachionus Bakeri. 



pala (= Amplii- 



ceros). 

 p)oly acanthus. 

 Eosphora aurita. 

 Euchlanis triquetra. 

 Floscidaria campanulata. 

 ,, longicaudata. 



Limnias ceratophylli. 

 Lindia torulosa. 



}) 



5J 



Monostyla bulla. 

 Notommata aurita. 

 (Ecistes crystallinus. 

 Philodina citrina. 



„ erythrophthahna. 

 Polyarthra platyptera. 

 Pterodina patina . 

 Rotifer macroceros, vel mega- 

 ceros. 

 „ vulgaris. 

 Stephanops lamellaris. 

 Synchwta pectinata. 

 Annelida. Oligoch^eta. 

 JEolosoma album (sp. nov.). 

 quatemarium. 

 tenebrarium. 

 Cho2tog aster minutus (sp. 



nov.). 

 Dero furcata. 

 limosa. 

 Perrieri. 

 Nais elinguis. 

 Pristina (sp. nov.). 

 MOLLVSCOIDE^E. Poly- 



ZOA. 



Fredericella sultana. 

 IN SECT A. 



Notosp>is lacustris, nymph of. 



?? 



j> 



>> 



V 



Melicerta ringens. 



The day was very showery, but, in spite of the bad weather, the 

 party numbered forty-one, of whom seven were members of other 

 Societies and eight were visitors. 



May 1st. 



Objects Found on the Excursion to Totteridge, by Messrs. 

 Dunning, Funston, McIntire, Mainland, Parsons, and 

 Kousselet. 



CRYPTOGAMIA. ALGiE. Pediastrum Boryanum. 



Chcetojthora elegans. Raphidivm falcatum (=An- 



Goniuui pectorale. kistrodesmus falcatus). 



