158 PLYMOUTFI MARINE INVERTEBRATE FAUNA. 



"^ EcHiNODERMA. Mr. Pace has devoted particular attention to this 

 group, and the list given is an almost complete one, except for the 

 Holothuria, 



TuRBELLARlA. The records are almost all derived from Dr. F. W. 

 Gamble's list published in this Journal (vol. iii. p. 30), and has been 

 submitted to Dr. Gamble and Dr. E. G. Gardiner. 



Nemertini. The list is based on that published in this Journal 

 (vol. iii. p. 1) by Mr. T. H. Riches. It has been revised and added to by- 

 Mr. Riches, Mr. R. C. Punnett, and Mr. W. I. Beaumont. 



Polych.^ta, Archiannelida. The majority of the records are by 

 Dr. E. J. Allen, by whom the list has been prepared. It is believed to 

 be fairly complete for species which occur at all frequently, excepting 

 in the families Syllidce and Maldanidce. 



The list of Pohjnoidce is based on that published l)y ]\Ir. T. V. 

 Hodgson in this Journal (vol. vi. p. 218). 



Myzostomaria, Gephyrea, Hirudinea, Oligoch^.ta, Ch^tognatha. 

 The lists of these groups are known to be incomplete. 

 " Crustacea. The list of Branghiopoda is probably complete, that of 

 the Ostracoda contains only a few records kindly supplied by the Rev. 

 Dr. A. M. Norman, of which no account of the local distribution can 

 be given, whilst that of the Copepoda is confined to species for which 

 Plymouth records have already been published by Mr. G. C. Bourne 

 {Journ. Mar. Biol. Assoc, N.S., i. p. 144) and by Prof. P. T. Cleve 

 {Svenska. Akad. Handl., vol. xxxiv., No. 2 ; Stockholm, 1900, etc.). 

 The parasitic Copepoda recorded by Dr. Bassett-Smith as occurring at 

 Plymouth have been omitted, as they were probably not found upon 

 fish caught within the area dealt with in this paper. The list of 

 CiRRiPEDiA is fairly complete. 



The Amphipoda and Isopoda are incomplete as regards the smaller 

 forms, and do not contain records by anyone who has worked ex- 

 haustively at the groups in this district. Cumacea are also incomplete. 

 The ScHizoPODA, the account of which has been prepared by Mr. W. I. 

 Beaumont, probably includes all the species which occur in any 

 abundance. 



The Macrura and Brachyura are fairly complete. 



Pycnogonida have not been revised by a specialist, and the list is 

 imperfect. 



^ Bryozoa. The list has been submitted to Dr. S. F. Harmer, who has 

 added many records. 



^ Mollusca. The lists, which are chiefly based on the work of 

 Mr. Todd and Mr. Pace, include all the more prominent forms, but are 

 incomplete as regards the smaller and more critical species. The 

 Tegtibkanchiata have been revised by Mr. W. I. Beaumont. 



