APPENDIX. 



181 



animal, but the structural resemblances between it 

 and the Scutellidium of Glaus are so striking, and 

 the differences so extremely slight, that I think it best 

 to include both in the same generic group. 



APPENDIX.* 



CYCLOPINA (?) OVALIS, Brady. 



Cyclops ovalis, Brady. Nat. Hist. Trans. Northumberland and 

 Durham, vol. 4, p. 429, pi. xviii, figs. 1, 2 

 (1872). 



Anterior antennae 24- jointed, as long as the cephalo- 

 thorax, slender, and nearly equal in 

 width throughout, joints about 

 equal in length and breadth at the 

 base, gradually increasing in length 

 towards the apex, the terminal 

 joint being about thrice as long as 

 broad, each joint bearing a single 

 short, delicate hair on the external 

 margin, the twenty-second and 

 twenty-third one on each margin, 

 the last having four or five apical 

 seta3. Caudal segments about four 

 times as long as broad ; setae about 

 as long as the last three abdo- 

 minal somites. 



* See vol. i, p. 94. 



VOL. IT. 



N 



