Rotifera: General Summary. By J. Murray. 587 



GENERAL SUMMARY. 



The four short papers which have appeared in this Journal 

 during 1911 deal with all the Rotifera collected by the Shackleton 

 Antarctic Expedition of 1907-1909, except those collected actually 

 in the Antarctic. The report on the Antarctic Rotifera had ap- 

 peared at an earlier date. 



In the four papers 72 species of Bdelloida are enumerated : of 

 which there were 4b' in Australia, 42 in Canada, 15 in Fiji, 24 in 

 Hawaii, 41 in New Zealand, and 9 in South Africa. 



There are 18 new species described: 7 from Australia, 5 from 

 Canada, 2 from Fiji, 3 from New Zealand, and 1 from South Africa. 

 In addition to these, there is a large series of very distinct varieties 

 of several of the spiny Bdelloids — Pleuretra brycei, Gallidina multi- 

 spinosa, C. jmpillosa, etc. The series of varieties of P. brycei and 

 0. m-ultispinosa are of great interest in the study of the distribution 

 and development of the species of Bdelloida. 



Adding the Antarctic Bdelloida, in order to complete the account 

 of the Rotifera collected by the Expedition, we have a total of 

 77 species. In the Antarctic 11 species were obtained, 5 of them 

 new to science. 



The Rotifera other than Bdelloids were only casually collected 

 in one or two countries, and present little of interest. In these 

 papers 33 species are noted : 26 for New Zealand and 8 for 

 Australia. 



