Biology of the Antarctic Seas XIX V47

Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 47.

A systematic study was made of the calanoid copepod genus Haloptilus found in Isaacs-Kidd midwater trawl and Bongo plankton Subantarctic seas and adjacent waters. A total of 799 adult copepods representing eight species of Haloptilus were found, of which only one species (H. ocellatus) was truly endemic to the Antarctic, occurring exclusively in waters south of the Antarctic Convergence. Three other species that were also found in the Antarctic were H. fons, H. oxycephalus, and H. longicirrus, of which the last is a new record and the first two are known as more or less cosmopolitan species. Four warmwater species found at stations just north to the Subantarctic were H. spiniceps, H. ornatus, H. longicornis, and H. paralongicirrus, of which the last is a new record. All species are redefined with pertinent descriptions and illustrations. A key is presented for identification of the species.