8 Mr. G. S. Brady on the Non-parasitic Marine Copejooda 



Lower foot-jaw stout, with almost entire margins. Joints of 

 swimming-feet very broad, subtriangular, much produced at 

 the external distal angle. Abdomen slender, consisting of four 

 segments ; tail-setge slender, finely plumose, the longest equal 

 to about twice the length of the abdomen. Length of animal 

 a'g of an inch. 



Hob. Off Seaham Harbour, dredged in a depth of twenty 

 to thirty fathoms. Only one specimen taken. 



The characters of this genus are very remarkable and 

 strongly pronounced, especially as regards the fifth pair of 

 feet of the male, which are more complex than any thing of 

 the kind hitherto known amongst the Copepoda. Another 

 species referable to the same genus (P. ohtusatus, Brady, MS.) 

 was taken abundantly in the surface-net by Mr. D. Robertson 

 and myself in Roundstone Bay, Ireland, on a calm moonlight 

 night in June of last year. 



Genus Thoeellia, Boeck. 

 Thorellia hrunnea^ Boeck. 



T. hrumiea, Boeck (18G4), Oversigt over de ved Norges Kyster iagt. 



Copep. p. 26. 

 Cyclops myricauda, Norman (1868), Last Shetland Dredging Report, 



p. 295. 



One specimen of this species occurred to me amongst Fuci, 

 in pools near low- water mark between Ryhope and Sunder- 

 land, in the autumn of 1871. Mr. Norman has taken it abun- 

 dantly amongst Laminarke in Shetland and at Tobermory in 

 Mull. 



The genus differs from Cyclops chiefly in the conformation 

 of the lower foot-jaw, which is transformed into a four-jointed 

 clawed foot. M. Boeck describes also in the same place an- 

 other closely allied genus, Misophria^ in which the maxilla3 

 are formed as in the Harpactidge, but with a strongly deve- 

 loped palp ; the lower foot-jaws as in Calanus. 



Genus Cyclopiceea, nov. gen. 



Superior antenna about as long as the cephalothorax, many 

 jointed, bearing (as in the Harpactidffi) a sword-shaped ap- 

 pendage near the distal extremity. Inferior antennas three- 

 jointed, having a minute secondary branch. Upper foot-jaw 

 chelate, three-jointed, the last joint forming a doubly-curved 

 very long claw ; lower foot-jaw four-jointed, last two joints 

 forming a long claw, each joint of which bears a spine on its 

 inner margin. Swimming-feet as in Cyclops. Fifth pair of 

 feet small, one-jointed. 



