120 ("anon A. M. Norman on Br'dUh Arnpldpoda. 



British Amphipoda of the Tribe Ilyperiidea and the Families 

 Orcliestiida: and some Lysianassidai. By Canon NoRMAN, 

 ]\J.A., D.C.L., LL.D., F.K.S., &c. 



I PURPOSE in these notes to revise the species of British 

 Amphipoda, and at the same time give an aecomit of the 

 Amphii)oda procured during the Nortii Atlantic Expeditions 

 of tlie' Porcupine/ ' Valorous/ ' Knight Errant/ and ' Triton.' 

 The records of the larger number of the captures of these 

 expeditions will fall under the British species, but in those 

 instances where the species are not members of our fauna, 

 that which relates to them will be enclosed in brackets. 



The study of this group of Crustacea has been beset with 

 difKculty, and in consequence of inadequate descriptions and 

 illustrations old records of species must, in some instances, be 

 received with caution. The publication of the splendid work 

 of Professor G. O. Sars has supplied the student with most 

 perfect descriptions and illustrations of tlic Amphipoda of 

 Norway, which include by far the greater part of those 

 known in our own fauna. If the critic is sometimes inclined 

 to think that occasionally there are to be found in that work 

 divergences described as specific which he would rather 

 regard as varietal, after all it is a mere matter of opinion, and 

 the author has at any rate directed our attention to moditica- 

 tions of characti'r which are worthy of study. In Sars's work 

 ■vve recognize a standard authority, and the arrangement there 

 set forth will here be followed. 



1 have only given references to such authors and papers as 

 esj)ccially throw light upon tlie species and their more im- 

 portant synonymy, \^y way of siiortening the references to the 

 most frequently quoted autliors, the following numbers will be 

 employed. In those cases where the work was included in the 

 list of works and jiapers on Isopoda lately given by me in 

 the 'Annals' in my paper on "British Isojwda Ciielifera '* 



