32 



Canadian Arctic Expedition, 1913-18 



Fifth legs of female (p 5 9 ) : inner lamellar process low, broad, evenly arched, 

 with four marginal spines; distal joint with five marginal spines (Fig. 45). 



Fig. 45. Harpacticus superflexus. Fifth legs of female. 



Fifth legs of male (p 5 c? ) : inner lamellar process absent as in H. uniremis; 

 an arcuate row of spinules occurs on the segment (Th 5) to the outer side of 

 p 5; in front of this arc there is a transverse row of points, and a corresponding 

 oblique row occurs on the genital segment (Fig. 46). 



Fig. 46. Harpacticus superflexus. 

 Fifth leg of male with adjacent segments. 



With reference to the pelagic occurrence of this species, it may be mentioned 

 that Brady (Brit. Cop. 1880, II, p. 152) records that H . flexus had been taken 

 by the surface net in Westport Bay, Ireland; elsewhere at the bottom in depths 

 of 1 to 20 fathoms. 



The anterior antennae of the male present the distal expansion found in 

 other species of Harpacticus; when viewed from the outer aspect the dactylus 

 is seen to possess a lateral spur and tubercle. 



26. Harpacticus uniremis Kroyer. 



Station 7a. 55 42' N., 136 20' W., surface 5 minutes, net number 3, 

 June 25, 1913. Seventeen examples. One female measured 1-4 mm., one male 

 1-28 mm., another male 0-80 mm. In addition, there were young Gammaridea 

 and an Ostracod (Conchoecia). 



Station 13. 54 30' N., 159 42' W. Several surface gatherings, with net 

 number 3, July 1, 1913. There were some Cypris larvae of Cirripedes. 



