234 MR EDWARD T. BROWNE ON 



The principal interest in this collection should be in the specimens taken in the 

 Antarctic Ocean. There is, however, a difference of opinion about the position of the 

 northern boundary line of the Antarctic Ocean, and I consider the Falkland Islands to 

 be outside the boundary line. 



It will be seen from the above list that only three species have been taken 

 indisputably within the Antarctic region. Halicreas papillosum, var. antarcticum, 

 may turn out to be a new species when better specimens have been examined. The 

 new genus Botrynema has a well-marked character in the arrangement of the margin 

 of the umbrella into lobes, and the tentacles into groups. Atolla ivyvillei had already 

 been recorded for the Antarctic. These three species probably live at a considerable 

 depth, and belong to the deep-sea medusae. Amongst the unrecognisable specimens 

 taken within the Antarctic region are a Ber'oe, and a Pleurobrachia, or an allied 

 genus. 



During the stay of the Scotia in Stanley Harbour, Falkland Islands, a new species 

 of Staurophora was secured, very much like the North Atlantic species, and also a fine 

 specimen of Desmonema chierchiana, which I have but little doubt has been described 

 under several other names, and is a common Cyaneid of the Magellan Straits and the 

 Falklands. In the large bottle containing the Desmonema were some macerated 

 specimens of Hippocrene macloviana, Willia mutabilis, and Phialidium simplex, all 

 of which are common medusae in Stanley Harbour. 



The occurrence of Phacellophora ornata in the South Atlantic is of geographical 

 interest, as it has only been previously recorded from Eastport (Maine, U.S.A.), on the 

 North Atlantic coast of America. The finding of Aurelia solida at a mid-North 

 Atlantic station is also of interest, because quite recently it was described as a new 

 species from the Indian Ocean. 



HYDROMEDUS^E. 

 ANTHOMEDUS.E. 



Family Margelid^;. 

 Hippocrene macloviana (Lesson), 1829. 



Hippocrene macloviana, Haeckel, 1879, p. 103, Taf. v. fig. 1-2; Browne, 1902, p. 278. 



Station. — Stanley Harbour, Falkland Islands, 7th January 1903. 



Two adult specimens in a macerated condition were found in the bottle containing 

 Desmonema chierchiana. 



H. macloviana is a very common medusa in Stanley Harbour, and has not been 

 recorded from any other locality. 



