CRUSTACEA OF NORTHUMBERLAND AND DURHAM 



HvPEROCHE TAURiFORMis (Bate and Westwood)=/r. Kroyeri 

 Bovallius and G. O. Sars. 

 Young and adult specimens have been obtained nearly 

 every year in the surface nets at the trawling excursions ; and 

 washed up in abundance in Cullercoats Harbour, March, 

 1903 (A. Mk.) N.D. 



EUTHEMISTO COMPRESSA (Goi'S). 



1878. Lestrigonus spi/iidorsalis, Bate, Ann. and Mag. Nat. 

 Hist., ser. 5, vol. i., p. 411, fig. 2. 

 Professor Meek tells us that he has taken typical specimens 

 of this species oflf Northumberland. N. 



EuTHEMisTO GRACiLiPES (Norman). 



1863. Hyperia oblivia, Bate and Westwood, vol. ii., p. 16 



(but not of Kroyer). 

 1869. Hyperia gracilipes, Norman, "Last Report Dredging 



Shetland." Brit. Assoc. Rep. for 1868, p. 287. 

 1887. Parathemisto loiigipes, Bovallius, " Syst. List of 



Amphip., Hyperiidea." Bihang t. K. Sv. Vet.-Akad. 



Hand., vol. xi., no. 16, p. 21. 

 1889. Parathemisto gracilipes, Bovallius, " Contrib. to 



Monog. of Amphip., Hyperiidea." K. Sv. Vet.-Akad. 



Hand., vol. xvii., no. 7, p. 368. 

 1906. Enthemisto gracilipes, Norman and Scott, The 



Crustacea of Devon and Cornwall, p. 54. 



There are some Arctic Amphipods which reach the British 

 Isles, but which are there of very much smaller size and less 

 pronounced characters ; by some naturalists these are regarded 

 as distinct species, by others as varieties. Enthemisto gracilipes 

 is such a form. It differs from E. compressa in its very small 

 size, and the absence of dorsal spinose keels. Although we 

 have given it as a species, we really regard it as a depauperized 

 form of E. compressa. British writers, following the mistake 

 of Bate and Westwood, have frequently recorded it as 

 Parathemisto oblivia. From that species it may at once be 

 distinguished by the carpus of the first two pairs of per?eopods, 

 which are ovately formed, and wider than the preceding joint. 



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