202 CAPTAIN OWEN ON THE SUBl'ACE-rATJNA Or MID-OCEAN. 



Sp. 5. PoLTNOii VAMEGATA, Gruhe, Ann. Oersted. 23. 

 Sab. Madeira, Kroyer. 



Sp. 6. POLTNOE NIGBOTITTATA, Grit,le, I. C. 24. 



Sah. Eio Janeiro, Kroyer. 



Sp. 7. PoLTNOE ANTAECTiCA, Kinherg, Searheitimg der Wuriner 

 K. Svenslca Fregatten Eugenies Resa (fide Gar us). 

 Sab. Straits of Magellan, Kinherg. 



Sp. 8. PoLTNOE AucKLANDiCA, Schmarda, I. c. 158. 

 Hah. Auckland, New Zealand, Schmarda. 



Sp. 9. ? POLTNOE LONGA. 

 Aphrodite longa, Fabricius, Faun. Greenland, p. 313. 

 Sab. Coast of G-reenland, Fabricius. 

 This species is said by Pabricius to possess 56 pairs (!) of elytra. 



Sp. 10. ? PoLTNOE MINITTA. 



Aphrodite minuta, Fabricius, I. c. 314. 

 Sab. Coast of Grreenland ?, Fabricius. 



[To be continued.^ 



On the Surface-fauna of mid- Ocean. 

 By Captain Samuel R. J. Owen, P.L.S. 



[Eead March 2, 1865.] 

 No. I. 



POLYCTSTINA AND ALLIED EhIZOPODS. 



Some years since, when surface-dredging for Pteropods, &c., in the 

 Bay of Bengal and other parts, living Polycystina, together with 

 a few species of Foraminifera, were frequently found attached to 

 the nets. This induced me to systematically dredge the surface 

 of mid-ocean for these Ehizopods on the first opportunity that 

 afterwards presented itself. The regions chosen for these re- 

 searches were the Indian and Atlantic Oceans, where there were 

 few or no islands near, the washings from whose shores might 

 interfere with the results. 



The surface-dredgings were commenced near the Sandheads in 

 the Bay of Bengal, and in a longitude of about 90° east, until 

 we arrived at 10° south of the line, thence making nearly a direct 

 course for the Cape Land, passing Madagascar at a distance of 

 250 miles. They were resumed in the South Atlantic Ocean, near 

 the Cape of Good Hope, and continued in nearly a straight 



