REVISED REPORT ON L.M.B.C. COPEPODA. 193 
also at the mouth of the Alt. The broad square fifth feet 
of the female (b) serve to distinguish it. 
Tachidius littoralis, Poppe. (Pl. XIX, fig. 2.) 
Length 0.60 mm. Very similar to T. brevicornis but 
differing chiefly in the anterior antenne and the fifth feet. 
Found in fucus about low water mark at Penmon Point 
and Puffin Island. 
Euterpe acutifrons,* Dana. (Pl. XIX, fig. 3.) 
Length 0.50 mm. Frequently taken by townet in the 
open sea and near to Puffin Island during the autumn 
months especially. Males and females equally common. 
I have generally been able to detect this species in 
material from its crescent shaped appearance. 
Robertsonia tenuis, Brady & Robertson. (Pl. XIX, fig. 4.) 
Length 0.60 mm. A rare species. Taken by dredge 
on two occasions in 10 fathoms off Puffin Island. 
Amymone spherica, Claus. (Pl. XIX, fig. 5.) 
Length 0.38 mm. Occasionally dredged off Puffin 
Island and found in dredged material sent by Mr. A. O. 
Walker from Colwyn Bay, and recently in Port Erin Bay. 
Although some of our specimens differ from Claus’s 
drawings in being less spinous I can see no good reason 
for supposing them not to be the same species. 
Amymone longymana, Claus. (Pl. XIX, fig. 5. b.) 
Length 0.50 mm. The only specimen we have taken 
was dredged in 5 fathoms off Port Erin. Distinguishable 
from the previous species by the posterior foot jaw (0). 
Stenhelia hispida, Brady. (Pl. XIX, fig. 6.) 
Length 0.35 mm. Found in rock pools at Hilbre and 
Puffin Islands; also in mud taken at Garth Ferry at low 
water, and in Port Erin Bay. The chitinous spear like 
inner branch of the male second foot is a distinguishing 
feature. 
* H. gracilis in plate. 
