105 



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List of Objects Collected at various Excursions, 



By M. C. Cooke, M.A., LL.D., A.L.S. 



{Communicated May 28th, 1880). 



HAMPSTEAD HEATH, FEBRUARY 20, 1880. 



Alg.« — 



Spirogyra quinina. 



Scenedesmus qiuidricauda. 

 Iniusoria — 



Englena viridis. 



Euglena spirogyra. 



Euglena pleuronectes. 



Stentor Mnlleri. 



Olenodinium cinetum. 



Coleps hirtus. 



Uroleptus lamella. 



Ptyxidhim ovulum. 



P'l'orodon teres. 



Paramecium aurelia. 



Trachelius ovum. 



Euplotes charon. 



Vorticella microstoma. 



Infusoria — 



Vorticella conx^allaria. 

 Protozoa — 



Actinophrys. 



Am<Bha guttula. 



Amceha Umax. 

 Rotifeile — 



Metopidia acuminata. 



Rotifer vulgaris. 



Philodina roseola. 

 Entomostraca — 



Cyclops tenuicornis. 



Cyclops seiTulatus. 



ARACHNIDiE — 



Tardigrada. 



Orihates lacnstris, Michael. 



SNARESBROOK EXCURSION, MAY 1, 1880. 



Alg.e — 



Stigeoclonium thermale. 

 Draparnaldia plnmosa. 

 Zygnema cruciatum, Ag. 

 Spirogyra nitida. 

 Spirogyra communis. 

 Ulothrix tenerrima, Kutz. 

 Ankistrodesmus falcatus. 

 Scenedesmus quadricauda. 

 Pediastrum heptactis. 

 Hydrianum heteromorphum, 



Reinsch, new to Britain. 

 Volvox glohator. 

 Oonium pectorale. 



Desmids — 



Sphcerozosma secedens, DeBary, 



new to England. 

 Hyalotheca dissiliens. 

 Euastrum elegans. 

 Euastrum elegans var. inerme. 

 Cosmarium hotrytis. 

 Arthrodesmus incus. 

 Arthrodesmus octocorne var. 

 Staurastrum dejectum. 

 Staurastruni cuspidatum, 

 Staurastrum arachne. 

 Bocidium Ehrenbergii. 

 Docidium haculum. 



