BY T. HARVEY JOHNSTON. 515 



"" Entozoa." The numbers in thick type refer to literature 

 indicated in the bibliography, in which the forms are mentioned. 



MONOTREMATA. 



I.Ornithorynchus anatinus Shaw(syn. 0. paradoxals Blumenb.). 



Distomum ornithorhynchi S. J. Jnstn.(21) (N.S.W.). This is 

 the only endoparasite described from the Platypus. Dr. Cobb 

 mentioned that he found one, but did not indicate to what class 

 it belonged. 



2.Tachyglossus aculeatus ^hdLw[Echidna hystrix Home). 



Linstowia echidnce Thompson(37)(N.S.W., Queensland). 



TcBTiia phoptica Cobbold(12)(Queensland 1). 



Linstowia echidnce was originally described as Tcenia echidnce 

 •by Thompson, (37) from material taken from New South Wales to 

 Xondon by Prof. Anderson Stuart. Prof. Zschokke(45), however, 

 rgave a much fuller account, based on specimens collected by Dr. 

 ."Semon in Queensland, making it the type of a new genus, 

 Linstowia. 



Cobbold{12) in his book '^ Parasites : a Treatise on the Entozoa, 

 •etc.," mentioned that he had examined some cestodes collected 

 by Dr. Bancroft of Queensland, from the common Australian 

 Echidna, Tachyglossus setosus (which is only a variety of T. 

 ■aculeatus). The strobilse of these averaged three inches in length, 

 the segments being very narrow, and closely set. By the term 

 narrow, he apparently referred to their length, as he stated that 

 the greatest width was three-eighths of an inch. He gave the 

 name Tcenia j)hnptica. The above-mentioned characters agree 

 fairly closely with those of L. echidncB, and there is little doubt 

 but that the two names refer to the same species, which is a 

 common and rather abundant parasite of the Echidna. Cobbold's 

 description is so meagre that I think that the worm should still 

 be known as Linstowia echidnce instead of Linstowia phoptica. 

 ■Cobbold's name is little more than a riomeii nudum. 



References to L. echidnce,, 12,20,34,37,40,41,42,43,44,45. 



