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Polychseta of Plymouth and the South Devon Coast, 

 including a list of the Archiannelida. 



By 



E. J. Allen, D.Sc., F.K.S., 



Director of the Plymouth Laboratory. 



INTRODUCTION. 



The present list of Polychsetes is a revision of the list published in 1904, 

 as part of the general list of the Plymouth Marine Invertebrate Fauna 

 (Journ. Mar. Biol. Assoc, vol. vii., 1904, p. 219). It is the result of work 

 carried on in the intervals of other researches, as opportunity ofiered, 

 and there are in all probability a good many gaps still to be filled. 



To the Plymouth records I have added those obtained at Salcombe 

 {Journ. Mar. Biol. Assoc, vol. vi., 1900, p. 151) and at Exmouth (ditto, 

 vol. vi., 1902, p. 295), a few records from the Teignmouth estuary, and 

 Major Elwes' records from Torquay {Journ. Mar. Biol. Assoc, vol. \dii., 

 1908, p. 197, and 1909, p. 347 ; vol. ix., 1910, p. 59), the latter dealing 

 only with Polychsetes found on the shore. Mr. Crawshay's records, 

 from the valuable series of dredgings S.S.W. of the Eddystone to fifty 

 fathoms, have also been included {Journ. Mar. Biol. Assoc, vol. ix., 

 1912, p. 339). 



Apart from the Archiannelids there are comparatively few species in 

 the list which I have not been able to examine myself. In all cases 

 where no initials appear at the end of a paragraph the responsibility for 

 the record is my own. 



My thanks are due to Major Elwes for a number of mounted specimens 

 of the Torquay species, which have been of great help, especially with 

 the SylUdse. 



As regards nomenclature, after the name of each species, one or more 

 references have been given to papers where a detailed description of the 

 species mtended is given. Whilst endeavouring as far as possible to 

 make use of that name which will probably stand, elaborate discussions 

 of nomenclature and synonymy have been in general avoided. The 

 main object has been to make quite clear which form is intended. Con- 

 siderable changes in the names used in the former list have been neces- 

 sary, since our knowledge of the British Polychsete fauna has been 

 greatly extended by the publication of several parts of Prof. Mcintosh's 



