introduced into Europe, and has apparently become para- 

 sitised by helminths which occur normally in other birds. 

 I am omitting the cestodes and nematodes from this list of 

 Australian avian entozoa. 



26. Anas superciliosa, Gmel., (M. 226, H. 753). The black 



duck. 



Cestoda:— i. Taenia cylindrica, Krefft, I.e., p. 220, (N.S.W. 

 or Queensland.) 



ii. Taenia Jlavescens, Krefft, l.c , p. 219. (N. S W. or 

 Queensland.) 



iii. Taenia bairdii, Krefft, I.e., p. 224. (N.S.W. or Queens- 

 land.) 



iv. Fimbriaria pediformis, Krefft, I.e., p. 222. (N.S.W. or 

 Queensland.) 

 Unfortunately none of Krefft's species are recognisable 

 from iiis figures anil descriptions, and but for the fact that 

 his types (or at any rate most of them) have been preserved, 

 one would lie justified in disregarding them. The three 

 first mentioned cestodes are very imperfectly described. 

 Their true generic position is unknown. The fourth species 

 which was described as Taen ia pediformis, also infests the 

 teal (Nettium castaneum, Eyton). Fuhrmann 1 suggests 

 that this species is probably a synonym of Fimbriaria 

 fasciolaris. Pall. A cursory examination of the single 

 specimen of T. pediformis now in the Australian Museum, 

 Sydney, leads me to think that Fuhrmann is right. A 

 thorough examination of Krefft's type would decide the 

 question of identity. Miss Sweet 2 wrongly quotes Krefft 

 in reference to the occurrence of Taenia malleus, G., (i.e. 

 Fimbriaria [aseiolaris, Pall.) in Australia. 



27. Nettium (Nettion) castaneum, Eyton, (syn. Anas 

 castaneum, Eyton). (M. 227, H. 754). Teal. 



