DIAPTOMID^. 



127 



C. Stromii. Fig. 211 ; \. 

 furcatus. 

 minuticornis. 



Arpacticus (M.-Edw.). Foot-jaws with strong 

 claws ; antennse simple ; ovary single. 



A. chelifer. Fig. 212 ; *f. 

 nobilis. 



Alteutha (Baird). Foot-jaws simple ; body flat, 

 with two strong hooks on the fifth segment. 



A. depressa. Fig. 213; 3 T - 



216 



214 



FAMILY III. DIAPTOMID^E. 



Temora (Baird). Head scarcely distinct from 

 thorax ; thorax of five, abdomen of three segments ; 

 antennae two-branched; feet five pairs, the first 

 four having each a two-jointed branch. 



T. Finmarchica. Fig. 214 ; f . 



Anomalocera (Templeton). Head distinct, fur- 

 nished with a two-pointed beak; thorax of six, 



