22 a KiiVisioN ok in i: BRITISH SPECIES Of 



This species occurs in ;i gathering made by the Rev. Dr. 

 Norman in the River Til] at EStal, Northumberland, and Mr. 

 Soourfield reoorda it from Wanstead Park, Essex, and from the 

 River Lea at Tottenham. Mr. Thomas Scott lias also recently 

 sent me specimens from Raith Lake, Kirkcaldy, Fifcshire, and 

 Dr. Norman others from Xetholm Loch, Roxburghshire; the 

 previously recorded British localities being Peterhead, N.Ik, and 

 Pwllheli, North Wales. Professor (I. 0. Bars found it near 

 Christiania. 



15. Gyclcps Ewarti, G. S. Brady (PI. VII., figs. 4-7). 



1888. Cyclops Ewarti, Brady (58), pi. VI1L, figs. 1-6. 



Female. — Anterior antenna) about as long as the eophalothorax, 

 eleven-jointed; the first, seventh, and eleventh joints nearly 

 equal and Longer than any of the rest; second and fifth joints 

 very short The four pairs of swimming feet have both branches 

 three-jointed ; fifth pair of feet two-jointed, the basal joint bear- 

 ing a single long seta at the inner angle, the last joint one long 

 and one very short seta at the apex. Last thoracic segment 

 narrower than the preceding one, dilated behind, and equal in 

 width to the first abdominal segment, from which it is not sepa- 

 rated by any distinct constriction. The first abdominal segment 

 has at each side two small lateral seta?, one of which is spine- 

 like. Caudal rami not divergent, in length rather more than 

 equal to the two preceding segments ; the longest tail-seta equal 

 in Length to the entire abdomen. Length 1*4 mm. 



A considerable number of specimens of this species were taken 



by Mr. 'I 1 . Scott, in November, 1887, in the tow-net in a small 

 bay west of Charleston, about live miles above Qnccnsferry, 

 Firth of Forth. It is interesting as being the only undoubted 

 member of the mams which has been found Living in the sen. 

 Hut the Forth at this point is subject to considerable admixture 

 of fresh water, anp 1 H is possible that this Cyclops may have its 

 real habitat in some of the streams or ponds whose contents find 

 their way into tho Forth. This is ;i matter to be decided by 

 future investigation. 



One is Liable \^ look with suspicion on the validity of Bmal] 



87 



