182 APPENDIX. 



Habitat. One specimen only taken off Sunderland 

 in the surface-net. 



My knowledge of this species is confined to the 

 single specimen from which it was originally described. 

 Seeing, however, that no true marine Cyclops is 

 known (the species described as such being insuffi- 

 ciently examined as to structure of mouth-organs, 

 &c.), it seems more probable that C. ovalis will be 

 found to belong either to the genus Oydopina or to 

 Cyclopicera. 



Fig. 1 in the woodcut represents the anterior 

 antenna; fig. 2, the posterior abdominal segments 

 and tail. 



