204 Canon A. M. Norman on British Amphipoda. 



associate^l in thousands of eacli species enjoying their dinner 

 in mutual respect. At Shetland I obtained Tryphosa nanvides 

 in f^reat abundance on a dead fish. 



As OrchemeneUa c/iiafa, G. O. Sars, has been shown by 

 J. Bonnier to be a synonym ot" Tryphosa nana (Kroyer), 

 Boeck, and Sars has acquiesced in this view, and as Tryphosa 

 nana teas made hy lioeck the type of his genus Tryphosa, it is 

 necessary that both generic and specific names employed by 

 Sars should give way to those which are earlier. 



34*. ? Tryphosa m inula (Krijyer). 



P 1801. Anonyx minntus, Bate & Westwood, (1) vol. i. p. 108. 



1870. Orchome7ie nu'iiuta, Boeck, (138) p. 174. pi. v. fig. 3. 



1890. OrchemeneUa minuta, G. O. Sars, (142) p. 07, pi. xxiv. fig. 1. 



This is a species found throughout the Arctic Ocean, 

 Siberian Sea, and Greenland, and though found throughout 

 Korwa}', it becomes scarcer southwards. 



Ilab. Is Anonyx minutus, Bate & Westwood, this species? 

 I do not think it can be, and am inclined to believe that 

 the Amphipod figured and described by them was a young 

 male of Orchomene humiUs, Costa, which species is found abun- 

 dantly at Polperro and Plymouth, whence Bate had specimens 

 of ^^ Anonyx minutusy Both figures and description accord 

 with 0. huniilis, except the description of the posterior peraio- 

 poda, which description, however, does not accurately apply 

 to any allied form known to me. The only other record of 

 the occurrence of the species in our fauna is given thus by 

 Mr. T. Scott : — " This species is reported from Minard (Loch 

 Fyne), where it was collected in 1870 by Murray." It must 

 be observed that Sir J. Murray does not study the Amphi- 

 pods, and we do not know the authority who identified the 

 species. 



35. Tryphosa pinguis (Boeck). 



1860. Anonyx pinyuis, Boeck, Forb. ved de Skand. Naturf. 8de Mode, 



p. 042. 

 1876. Orchomene pinyuis, Boeck, (138) p. 176, pi. v. fig. 1. 

 1890. Orcheinenella jnnguis, G. O. Sars, (142) p. 67, pi. xxiv. fig. 2. 

 1893. Tryphosa pinyuis, J. Bonnier, " Les Amphipodes du Boulonuais, 



III.," Bull. Sci. France et Belgique, vol. xxiv. pp. 172, 196. 



The above names will show the confusion which has existed 

 among the small Lysianassids, as it seems to me from multi- 

 plying genera on insufficient characters ; but not wishing to 

 increase confusion, I have adopted for them M. Bonnier's 

 revision. 



Hah. " Dredged west of the Tan Buoy, Cumbrae, in 



