CRUSTACEA OF NORTHUMBERLAND AND DURHAM 



1901. Diaptomus gracilis, G. O. Sars (6), vol. iv., p. 92, 

 pi. Ixiii. 



Syn. : Diaptomus Westwoodii, Lubbock. 

 An almost exclusively lacustrine species which occurs 

 abundantly in most of the English and Scottish lakes, and 

 generally in ponds and still water. Very plentiful in Tindale 

 and Talkin Tarns, which are just over the border of our 

 restricted district, also in Crag Lake and Chartners Lake 

 (A. M. N.). In Talkin Tarn we have seen the net come up 

 from some few feet below the surface quite alive with shoals 

 consisting chiefly of this species and Eurytemora affinis 

 (G. S. B.) N. 



Fam. 5.— TEMORID^ 



Temora longicornis Miiller. 



1865. Temora longicornis, Brady, Nat. Hist. Trans. North- 

 umberland and Durham, vol. i., p. 36, pi. i., fig. 15, 

 and pi. ii., figs, i-io, and (3) vol. i., p. 54, pi. iii., 

 figs. 10-19. 

 Syn. : Tefnora finmarchica, Baird ; and Diaptonnts longi- 



caiidatiis, Lubbock. 

 This is one of the most abundant of the marine Copepoda. 

 It occurs both in the littoral zone and in the open sea, more 

 plentifully at most seasons than any other of the Calanoida, 

 excepting, perhaps, Calanus septentrionalis. Easily recognised 

 by its very long and slender caudal appendages. N.D. 



Eurytemora velox (Lilljeborg). 



1865. Temora velox, Brady, Nat. Hist. Trans. Northumber- 

 land and Durham, vol. i., p. 38, pi. i., fig. 16, and 

 pi. iii., figs, i-ii, and (3) vol. i., p. 56, pi. vi., figs. 1-5. 

 1891. Eurytemora Claiisi, Brady (4), p. 105, pi. xiii., 



figs. 1-5. 



1901. Eurytemora velox, G. O. Sars (6), vol. iv., p. 100, 



pis. Ixvii., Ixviii. 



Common, and often very abundant, in the pools of salt 



marshes, and (in other parts of the country) occasionally in 



fresh water. Not noticed in this district except in brackish 



114 



