OSTRACODA. 



425 



hering foot. The appendage of the seventh pair is always elongated 

 to the form of a leg ; in Cythera it is formed like the preceding one, 



A 



FIG. 336. Cypridina meil'iffi-raiti-it. u, Female; b, male. M, Stomach; If. heart; S3f, 

 adductor muscle ; O, eye ; O', unpaired eye ; G, brain ; Sk, frontal organ ; T, testis ; 

 P, copulatory organ; MJf, mandibular palp; MX', first maxilla ; A/.v'', second maxilla; 

 FK, caudal fork. 



but in Cypris it is curved upwards, and is furnished with a short 

 claw and terminal seta?. It has probably the same function (Putzfuss) 



