CONTENTS OF NEW SERIES, Vol. IV., No. 4. 



PAGE 



1. On the PlX'lTLIARITIES OF PlAICE FROM DiFFEREXT FiSHING GROUNDS. 



By J. T. CcNXiXGHAM, M.A. - . . ... ;51."> 



2. The (Oyster C'ulturr of the Ancient Romans, v:ith Plate I. 



By K. T. GiJNTHER, M.A. . . . ... .360 



3. Hixent REPORT.S of Fishery Authorities . ... 366 



4. ^[icRoscopic Marine Organisms in the Service of Hydrography'. 



By Prof. P. T. Cleve . . . ... 381 



;"). ' The Regulations of the Local Sea Fisheries Committees in 



England and Wales. By E. J. Allen, B.Sc. . . . 386 



C. Contributions to Marine Bionomics. Jiy Walter Garstang, M.A. 

 n. Tlie Functions of Antero-Lateral Denticulationa of the Carapace 



in Sand-burrowing Cral»s . . ... 396 



III. The Systematic Features*, Hal)it.s, and Respiratory Phenomena of 



Portumnus nasutus (Latreille) . ... 402 



7. The Distribution of Marine Plankton . ... 408 



8. An Examination of the Present State of the Grimsby Trawl 



Fishery, with especial reference to the Destruction of 

 Immature Fish. Revision of Tables. By E. W. L. Holt . . 410 



9. Director's Report . . . . • . . 415 

 K). Steamboat Fund— List of Subscribers . ... 418 



NOTICE. 



The Council of the Marine Biological Association wish it to he understood that 

 they do not acce))t responsil)ility for statements juildished in this Journal, 

 excepting when those statements are contained in an ollicial report of the Council. 



TERMS OF MEMBERSHIP. 



& s. d. 



Annual Members .... l)er annum. 1 1 



Life Members . . . Composition Fee. 15 15 



Founder.-* . . . • . . 100 



Governors . . . ... 500 



Members of the Association have the following rights and privileges ; they elect 

 annually the Officers and Council ; they receive the Journal of the Association free 

 ])y post ; they are admitted to view the Laboratory at Plymouth, and may introduce 

 friends with them ; they have the first claim to rent a place in the Laboratory for 

 research, with use of tanks, boats, &c., and have access to the books in the Library 

 at Plymoutli, 



All correspondence should be addressed to the Director, The Laboratory, 

 Plymouth. 



