of the North-east Coast of England. 5 



Irenmis Patersonii, Claus, Die frei-leb. Copep. (1863). 



Of common occurrence in the open sea all round the British 

 Islands. 



Genus PoNTELLA, Dana. 

 Pontella hrevicornis^ Lubbock. 



Pontella hrevicornis, Lubbock, Ann. & Mag. Nat. Hist. ser. 2. vol. xx. 

 (1857), pi. 11. figs. 4-8. 



In surface-net off Grimsby and in Bridlington Bay. Amongst 

 weeds in tide-pools near Ryhope, August 1871. Shetland 

 [Mr. Norman). 



In a gathering made by Mr. E. C. Davison in Bridlington 

 Bay, this species occurred in great abundance, the contents of 

 the net, which quite filled a six-ounce bottle, consisting of 

 about equal numbers of P. hrevicornis ^ Anomalocera Pater soiiii^ 

 and larval forms of the higher Decapods. 



Fam. Cyclopidae. 

 Genus Cyclops, 0. F. Miiller. 



1. Cyclops LubhocMi^ Brady. 



C. lubbocku, Brady, Nat. Hist. Trans. N. & D. vol. iv. p. 127, pi. 4. figs. 1-8. 

 In pools of brackish water, Hartlepool, June 1866. 



2. Cyclops cequoreus, Fischer. 



C. cequoreifs, Fischer, Abhandl. der Akad. der Wissenschaften, Miinchen 

 (1860), Band viii. p. 654; Brady, Nat. Hist. Trans, N. & D. vol. iv. 

 p. 128, pi. iv. figs. 9-16. 



In brackish pools at Seaton Sluice, Northumberland. 



3. Cyclops litto7'aUs, n. sp. PL II. figs. 9-14. 



Superior antennae twenty-two-jointed, clothed with long 

 setffi, more particularly towards the base ; joints all very short, 

 the two terminal ones, which are the longest, not being much 

 longer than broad, the twelfth and sixteenth much produced 

 and bearing a long seta at the external margin. Inferior an- 

 tennge without a secondary branch, four-jointed ; fifth pair of 

 feet composed of a single three-jointed branch ; caudal seg- 

 ments about four times as long as broad ; set^ four, the two 

 central ones being alike in length and equal to the three pre- 

 ceding segments. 



Hab. Amongst weeds in tidal pools, near Whitley and 

 Ryhope. Rare. 



4. Cyclops ovalis, n. sp. PI. III. figs. 1, 2. 

 Superior antennae twenty-four-jointed, as long as cephalo- 



