ORUSTACEA OF NORTHUMBERLAND AND DURHAM 363 



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

 pi. Ixiii. 



Syn. : Diaptonms 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 Ettrytemora affinis 

 (G. S. B.) N. 



Fam. 5.— TEMORIDy^ 



Temora longicornis M tiller. 



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. : Temora finmarchica, Baird ; and Diaptomus longi- 



caiidatus, 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, Calamis septenirionalis. 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. 

 1 89 1. Eurytetnora Clausi, Brady (4), p. 105, pi. xiii., 



figs. 1-5. 



1 90 1. E^ay temora 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 



