Proc. Roy. Soc. Victoria, 21 (N.S.), Pt. II., 1908.] 



Art. XXII. — The Endoparasites of Australian Stock 

 and Native Fauna. 



Part T. 

 Introduction, and Censui^ of Forms recorded up to date. 



By GEORGINA SWEET, D.Sc, Melb. Univ., 

 Government Research Scholar. 

 [Read 10th December, 1908.] 



Introduction. 



The investigation of which the present papers form the first 

 records was begun this year (1908) in the Biological Laboratory 

 of the University of Melbourne. Tliis work, of which the extent 

 and difficulties can only be appreciated by those who know- 

 something of the subject, aims at making a systematic and 

 thorough enquiry into the nature of the internal parasites 

 infesting Australian animals, both native and domesticated, and 

 then into the life-history and conditions of increase and spread 

 of these injurious forms. So far but little of a methodical 

 and widespread nature has been done in Australia, although, as 

 will be seen from the accompanying census, a considerable 

 number of records are scattered about in various publications. 

 The valuable work of Dr. N. A. Cobb in New South Wales is the 

 principal series of records in this direction, the other States 

 of the Commonwealth being very far behind the mother State in 

 this respect. This, in a country so dependent on its live stock 

 industries as Australia, means a very great loss in revenue 

 annually from what are probably preventable causes. 



Doubtless we have here many of the more common forms of 

 the older civilised countries, which have been introduced, but 

 very probably, too, there are species unknown elsewhere and 

 just as objectionable as many of the better known kinds. My 



