302 



PHYLUM ARTHROPODA. 



FlG. 156. Cypris, side view, after removal of one valve. 

 After Zenker. 



e., Eye; A.I, first antennae; A.2, second antennae; MN., mandibles; 

 m.r.r, first maxilla ; mx,2, second maxilla ; f. /, f*2, thoracic legs ! 

 Ab. % rudimentary abdomen. 



Fio. 157. Cyclops type. 



tA., first antenna; II A-t second antenna; OV.^ ovary, n -V 

 receptaculum seminis ; OS., ovisac ; F., caudal fork. 



