138 BRITISH COPEPODA. 
weeds, but is sometimes dredged abundantly, and is 
also taken by the tow-net in the open sea. On the 
Durham coast it is not uncommon between tide- 
marks. (Sunderland, Ryhope, &.) . 
I have specimens found amongst dredged material 
from Portincross (Ayrshire), and in_ surface-net 
gatherings taken by Mr. H. C. Davison in the har- 
bours of Valentia and Killybegs (Ireland). I have 
dredged it abundantly amongst the Scilly Islands, — 
where, also, it was got in the surface-net; dredged 
also off Scarborough, and in Lough Swilly. Mr. 
Norman has taken it in Bressay Sound, Shetland, at 
Oban, and at Tobermory, amongst weeds. 
10. Tuarustris peLtata (Boeck). Pl. LIII, figs. 11—19. 
Amenophia peltata, Boeck. Oversigt Norges Copepoder, p. 45 
(1864). 
Body depressed, broadly ovate; abdomen con- 
stricted at the base, and narrower than the cephalo- 
thorax. Rostrum short, obtusely rounded. Ante- 
rior antenne 9-jointed (fig. 12); first four joints 
(peduncle) much longer and broader than those of the 
terminal portion (flagellum), the first, third, and 
fourth joints being nearly equal in length, the second 
almost as long as the third and fourth together. Inner 
branch of the posterior antenna (fig. 18) 3-jointed. 
Posterior foot-jaw (fig. 16) slender, hand elongated and 
bearing a single seta on the middle of the inner 
margin. Branches of the first pair of feet nearly 
