GL 



430.3 

 E4 I 78 

 19097 

 NOLL. 



BM*m of Mollusfe 

 Seefioncr] library 



kipgrpool flDarine Biology Committee. 



L.M.B.C. MEMOIRS 



on Typical British Marine plants &■ animals 



EDITED BY W. A. HeKDMAN, D.Sc, F.R.S. 



XVIII. 



ELEDONE 



BY 



ANNIE ISGROVE, M.Sc. 



(With io Plates) 



Price Four Shillings and Sixpence 



LONDON 



Williams & Norgate 



July, 1909 



