JC>-<L 4 ^ 



2nd Ser. ZOOLOGY.] 



[VOL. III. PART 5. 



THE 



C,^^'Z 



TRANSACTIONS 



ilLi. /9n- 



.^. 



OF 



THE LINNEAN SOCIETY OF LONDON. 



A EEVISIONAL MONOGRAPU OF RECENT EPHEMERIDJ; 



OR MAYFLIES.-PAET V. 



BY 



The Rev A. E. EATON, M.A. 



{Communicated by Sir John Lubbock, Bart., P.R.S., Pres. Limi. Soc.) 



NOTICE. — This Memoir will form Vol. 3. Vol. 2 is being simultaneously continued in Parts. 



LONDON: 



PRINTED FOB THE LINNEAN SOCIETY 



BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



SOLD AT THE SOCIETV's APARTMENTS, BURLINGTON-HOUSE, PICCADILLY, W., 

 AND BY LONGMANS, GREEN, AND CO., PATERNOSTER-ROW. 



Decemher 1887. 



