164 ME. A. W. WATEKS ON 



must belong to another species ; however, Norman includes 

 figs. 47-49. 



The present paper was practically written, and the drawings 

 for the plates prepared, before I commenced the examination 

 and description of the collection from the Antarctic made by the 

 ' Belgica,' but it was kept back for comparisons to be made with 

 the Antarctic fauna. The collection alluded to proved to be a 

 very considerable one, containing 86 Antarctic forms besides a 

 few Subantarctic. Of the Antarctic forms, 57 are considered 

 new ; but although the number of new species is so large, many 

 of them are closely allied to known forms from the Southern 

 hemisphere, the greatest resemblance naturally being with Sub- 

 antarctic and South Temperate forms. No species of the Chilo- 

 stomata is considered to be identical with Arctic forms. 



There are 15 species of Antarctic Cyclostomata, and for the 

 most part they are not satisfactory, as few contain ovicells ; but 

 nearly all of them, or close allies, have a very wide range of 

 distribution, and three have been found in the Arctic, but these 

 three may all be considered cosmopolitan. 



The Bryozoa, so far as they are known at present, certainly 

 do not seem to give any support to the Bipolar theory; but as I 

 have entered more fully into the geographical distribution in my 

 memoir * on the Antarctic Bryozoa, it is not necessary to deal 

 with it here. I have also in the same work protested against 

 the use that has been made of the term Antarctic, when Sub- 

 antarctic was meant, for, until the last few years, our knowledge 

 of the Antarctic fauna has been most scanty ; nevertheless, long 

 lists of animals have been drawn up and called Antarctic, whereas 

 they really were Subantarctic. By including Subantarctic with 

 Antarctic, the area is made about twice as large as that which 

 we call Arctic. Comparisons thus made have to be set aside, 

 but no doubt before long a complete comparison of the Arctic 

 and Antarctic faunas will be possible, as the various Expeditions 

 may be expected to bring back important collections. 



There was only one species of Ctenostomata brought back by 

 the Belgian Expedition ; however, it was interesting, as we 

 know so few Alcyonidia from the Southern hemisphere, but the 

 species described b}' me makes the third from the extreme south. 

 They all have numerous tentacles, whereas most of the European 

 ones have only 13-17 tentacles. 



* E^sultats du Voyage du S. Y. 'Belgica' en 1897-1898-1899: Bryozoa, 

 1904. 



