276 HISTORY OF BRITISH CRUSTACEA. 



Gen. 147. EYADNE, Loven. 



Head not distinct from the body; abdomen short, scarcely 

 projecting from the shell. 



EvADNENoRDMANNi,Loven. (Plate XVI. fig. 3.) — Nearly 

 colourless, except the back part of the eye, which is black. 



Hab. Firth of Forth. The late Mr. Goodsir, who perished 

 in the Arctic regions, on the unfortunate Franklin expedi- 

 tion, first fonnd this species in the British seas. It is very 

 active, and forms part of the food of the herring. The 

 specific name was given to it in compliment to Professor 

 Nordmann of Helsingfors, an able writer on parasitic Crus- 

 tacea and other classes of animals. 



Fam. III. LYNCEIDM. 



Two pairs of antennse ; upper very short ; lower of mode- 

 rate size, branched, each branch divided into three joints. 

 Five pairs of legs. Eye single, but with a black spot in front 

 of it. Abdomen jointed. Dr. Baird informs us that Jurine, 

 by isolating the young successively, obtained fifteen genera- 

 tions of one of the species of this family, Chjclorus spharicus. 

 The various species swim rapidly, directing themselves by a 



