114 BRITISH COPEPODA. 



took it by means of the surface-net. I am unable 

 to find any characters which distinctly separate 

 Dactylopus cinctus, Claus, from robust forms of 

 D. Stromii, and have frequently seen specimens 

 which, so far as I can ascertain, might be referred 

 equally well either to one species or the other. 



I am disposed to think that a form described by me 

 some years ago, under the specific name " Normani,'* 

 may very probably belong to D. Stromii. For the 

 present, at any rate, it seems best to withdraw the 

 name, which can be re-established should further 

 research prove the species to be well founded. The 

 following is the description of D. Normani :* 



" Closely approaching D. tisboides, from which it 

 differs, however, in the following particulars : The 

 superior antennae are 8-jointed, and not so densely 

 setose, the proportionate lengths of the various joints 

 being as follows : 



The secondary branch of the lower antennae bi-articu- 

 late, each joint bearing two moderately long setae. 

 Lower foot-jaw (gnathopod) simply chelate, the inner 

 margin of the hand fringed with short setae. Longer 

 branch of the first foot slender, bearing almost at the 

 extremity of the outer margin a short ciliated seta. 

 Fifth pair of feet large, outer branch subovate, bearing 

 three long setaB, one at the apex, one on each lateral 

 margin, and three shorter ones on the outer margin 



* ' Nat. Hist. Trans. Northumberland and Durham,' vol. iv, 1872. 



