510 NOTES ON SOME PARASITIC PROTOZOA, 



Sarcosporidia in Pigs, Sheep, Cattle and 

 Rodents. 



Tlie following Sarcosporidia have been met with by us. Some 

 of these, we believe, are recorded for the first time in Australia. 

 Sarcocystis meischeriana Kiihn, in the musculature of pigs in 

 West Australia; Sarcocystis (Balbiania) gigantea Raill., in the 

 oesophagus of sheep in New South AVales and West Australia (in 

 the latter case probably imported from Victoria); Sarcocystis 

 tenella RailL, from the muscles of cattle in New South Wales; and 

 Sarcocystis muris Blanch., in Mits rattus and M. decuma^ius in 

 Sydney. 



Trypanosoma lewisi Kent. 



As in other parts of the world, T. lewisi is not uncommon in 

 M}iS rattus and J/, decumanus in Sydney, Its presence has 

 already beeu recorded in Australia by Pound from Brisbane, and 

 ourselves from Perth, West Australia, and from Sydney. 



Cnntrosomes in the Erythrocytes of Tortoises. 



(Plate xlviii., figs.U, 18.) 



In the red blood-corpuscles of certain tortoises, Chelodina longi- 

 collis from Sydney, and C. oblo7iga{1} Gray, from near Perth, 

 W^est Australia, we have seen bodies resembling the centrosomes 

 described by Ross, Moore and Walker. In the case of the 

 former, the structure consisted of irregularly disposed threads 

 surrounded V)y a rather lighter staining area (fig. 14), whilst in the 

 latter there were four or five well defined masses arranged some- 

 what like a rosette (fig. 18). 



Basophile Granulations (Plehn's Bodies) in the 

 Red Corpuscles of Cows suffering from 

 Endemic Hasmaturia of Vesical Origin. 



In certain parts near the coast-line of New South Wales, cases 

 of endemic hsematuria, due to weeping from vascular papillomata 

 of the bladder, are often met with in cattle. (5) No parasitic 

 worms have been found causative of these papillomata, and no 



