178 D. J. SCOURFIELD ON THE WINTER EGG OF A RARE WATER-FLEA. 



appear to be notched. I am, therefore, inclined to think that it 

 may not actually be L. acanthocercoides. 



In conclusion, I may be permitted to say, perhaps, that I am 

 endeavouring'at present to make a special study of ephippia and 

 similar coverings of the resting eggs of the Cladocera, and that I 

 shall be extremely grateful for specimens and information from 

 any source. 



Literature referred to in the foregoing Paper. 



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2. Jurine, L. " Histoire des Monocles." Geneva, 1820. 



3. KuRZ, W. " Dodekas neuer Cladoceren." Sitzungsherichte 



der Kcdserlichen Akad., Wien, Vol. LXX., 1874. 



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