62 COPEPODA AND OTHER CRUSTACEA TAKEN IN IRELAND 



than: broad, seventh and eighth joints the shortest, fourth, 

 fifth, sixth, and ninth nearly equal (fig. 2). Antennae (fig. 3) 

 nearly as large as the antennules. very stout, and bearing 

 stout terminal spines, inner branch three-jointed. The man- 

 dibles, maxillae, and anterior footjaws (figs. 4, 5) are in general 

 build similar to those of other species. The hand of the 

 posterior footjaw (fig. 6) is subovate, very stout, and bears a 

 short and stout terminal claw; inner border of the hand 

 indistinctly fringed with short ciHa. Branches of the first pair 

 of feet (fig. 7) equal in length, very stout, the terminal claws 

 broad towards the base, flexuously curved and fringed on 

 their concavities with fine cilia ; the second joint of the outer 

 branch bears on its inner margin two short proximal and one 

 rather longer distal setae ; the third joint has one long apical 

 seta, two strong apical claws, and two smaller ones on the 

 outer margin ; there is a single stout spine on the outer margin 

 of each of the two preceding joints ; the first joint of the inner 

 branch is equal in length to the first and second joints of the 

 outer branch, and bears about the middle of its outer margin 

 a single plumose seta ; second joint almost obsolete, about as 

 long as the last joint of the outer branch, and armed terminally 

 with two stout claws. The remaining swimming feet (fig. 8) 

 are of the usual type ; fifth pair (fig. 9) short and broad, the 

 two joints of nearly equal length, each bearing five or six 

 short marginal setae. Length '87 mm. Male unknown. 



Hab. — -A few specimens of this species — all females — were 

 found in a gathering taken amongst weeds at Roker, August 

 15th, 1900, at low-water mark of an extremely low tide. 

 They seem to be perfectly distinct from all described species. 



Genus HARPACTICUS, M. Edwds. 



Harpacticus gracilis, Claus (PL IV., figs. 4-12). 



Harpacticus gracilis, Claus. Die frei lebenden Copepoden, 



p. 135, pi. XIX., fig. 20. 

 ? ,, „ Kritchagin, Fauna of the Black Sea, 



p. 40, pi. III., figs. 34-42 (1877). 



