42 G. O. Sars. 



PI. II. 

 Diaptomus Chaffanjoni, Richard. 

 Adult ovigerous female, dorsal view; magnified 62 diameters. 

 Same, without the ovisac, viewed ft'om left side. 

 Same, urosome together with the posterior part of metasome, 

 viewed from the dorsal face ; more highh' magnified. 

 Same, last pair of legs. 



Extremit}' of left leg, more bighl}^ magnified. 

 Adult male, dorsal view. 



Same, outer part of right anterior antenna, more highl}' magni- 

 fied. 

 ^ 1 g. Same, last pair of legs. 



Cypris purpurascens, Baird. 

 Fig. 2. Adult female, viewed from right side ; magnified 68 diameters. 



— 2 a. Same, dorsal view. 



— 2 b. Same, anterior maxilla, without the vibrator}^ plate, more highly 



magnified. 



— 2 c. Same, right caudal ramus. 



— 2d. Immature specimen of the same species, viewed from right side. 



Cypris rittata, G. O. Sars. 

 Fig. 3. Adult female, viewed from right side; magnified 68 diameters. 



— 3 a. Same, dorsal view. 



— 3 b. Same, end-view. 



— 3 c. Right caudal ramus, more highh^ magnified. 



Cypris decorata, G. O. Sars. 

 Fig. 4. Adult female, viewed from right side; magnified 68 diameters. 



— 4 a. Same, dorsal view. 



— 4 b. Same, right caudal ramus, more highl}"^ magnified. 



PI. III. 



Hemicypris pyxidata (Moniez). 



Fig. 1. Adult female, viewed from left side; magnified 68 diameters. 



— la. Same, dorsal view. 



— lb. Another specimen, in which the left valve has been removed, 



in order to show the enclosed animal ; more highlj'^ magnified. 



