*joClL,MaTi'^ ^oTjal Microscopical Society. 293 
the Nudibranchiate Mollnsca, Emhletonia Grayii* Mysis vulgaris, 
Plumatella repens and also one of the Ctenostomatous Polyzoa, 
Cordylophora lacustris, Spo7igiIla lacustris, and a numerous as- 
semblage of Entomostraca and Botifera, Floscularia ornata in great 
abundance included among the latter. Many of the above-men- 
tioned forms are most frequently met with in our ponds and 
inland streams, while others betray a preference for salt water, and 
under these circumstances it seems highly desirable that a greater 
amount of attention than has hitherto been paid, should be brought 
to bear on the study of the fauna, both microscopic and otherwise, 
of the brackish waters around our coasts. 
* A new species, exhibited and described by myself at the last February 
meeting of the Zoological Society. 
