BfJ 



A MONOGBAPH 



FREE AND SEMI-PARASITIC 



COPEPODA OF THE BRITISH 

 ISLANDS. 



BY 



G. STEWABJDSON BEADY, M.D., F.L.S., 



PROFESSOR OF NATURAL HISTORY IN THE UNIVERSITY OF DURHAM COLLEGE 



OF PHYSICAL SCIENCE, NEWCASTLE-ON-TYNE ; CORRESPONDING 



MEMBER OF THE ZOOLOGICAL SOCIETY OF LONDON, 



OP THE ACADEMY OF NATURAL SCIENCES 



OF PHILADELPHIA, ETC. 



VOL. III. 



LONDON: 

 FEINTED FOR THE RAY SOCIETY. 



MDCCCLXXX. 



