OSTRACODA. 



385 



being turned upwards and backwards over the hind part of the 

 body and carry a brush of setae at the end. In the Cypridinidae 



A 



F" 



FIG. 254. Cyjiridina mediterraneu. a Female ; b mate. A', A" first and second antennae ; 

 F', F" first and second thoracic legs; Fu caudal fork; G brain; H heart; M stom- 

 ach; Mdf mandiliular palp; MJC' lirst maxilla; MX" second maxilla; O eye; O' un- 

 paired eve; P copulatory organ; SM adductor muscle; Stz frontal organ; T testis. 

 (After Clam.) 



(Fig. 254, F"} this pair of appendages is long, cylindrical and 

 many -jointed ; they also carry a terminal brush of setae, and as 

 z in c c 



