p. T. CLEVE, NOTES ON SOME ATLANTIC PLANKTON-ORGANISMS. 



Plate III. 



Onccea suhtilis GlESBR. Male. 



Outline, dorsal X 170. 



Outline, lateral X 170. 



Left anterior antenna X 500. 



Right anterior antenna X 500. 



Abdomen and furca, dorsal X 300. 



Furca, dorsal X 500. 



.\bdomen and furca, lateral X 300. 



Posterior maxillipede X 500. 



Posterior antenna X 600. 



Second foot X 500. 



Fourth foot X 500. 



Antlioci/rtiitiii untlietiiis Hkl.? X 500. 



Sethoconus crinitus Cl. . X 500. 



Challengeron brevispina Cl X 600. 



Euphyselta pusilla Cl X 500. 



Sperinatogoniu aiitiqua Leud. Foktm X 500. 



Sperm, ant. central cajisuleC!'), treated with soda X 600- 



