BY T HARVEY JOHNSTON. 409 



vsome. The latter was situated at about one-third of the distance 

 from the centre of the posterior end, the nucleus lying between 

 it and the centre. A large vacuole appeared to be present in 

 the deeply staining protoplasm (using Leishnian's stain). Towards 

 each end this protoplasm was replaced by some deeply staining 

 :granules. 



There was no trace of any trypanosomes in any of the reptilian 

 blood-films examined by me. Trypdnosomi lewisi Kent, is fairly 

 commonly met with in our rats (Mas raUas Linn., M. alexandri- 

 nus Geoffr., and M. decumanus Pall.). Hcemogregarina muris 

 Balfour, also occurs in New South Wales, in Mus decumanus 

 Pall. Though T have examined films containing each of these, 

 no film has been seen with both of them present. There is most 

 probably no connection whatever between tliem. 



Literature. 



(1). Sambon, L. W., Trans. Path. Soe. Loncl., Iviii., 1907, p. 310. 



(2). Sambon, L. W , &SELIGMANN, C. G. , Pioc. Zool. So3. Loncl. , 1907, p. 284. 



(3;. Welsh, D., & Barling, Journ. Sydney Univ. Medical School See, i., 



(new series) 1908, p. 82. 

 (4). Welsh, D. A., Dalvell & Burfitt, Journ. Syd. Univ. Med. School 



Soc, i., 1908, p. 89. 

 (5). Balfour, A., Journ. Trop. Med., March, 1906; Second Report Wellcome 



Research Lab., Khartum, 1906, p. 110. 

 (6). Johnston, T. H., Rec. Austr. Mas., vii , p. 257, 1909. 

 (7). , Agrio. Gaz. N. S.Wales, July, 1909, p. 581; Proc. Linn. 



Soc. N. S. Whales, 1909, xxxiv., p. 2 18. 

 (8). Cleland, J. B., Journ. Trop. Medicine, 1906, p. 296; Austr. Assoc. 



Adv. Science, 1907, p. 516. 

 (9). Johnston, T. H., & Clel.a.nd, J. B., Journ Proc. Roy. Soc. N. S. 



Wales, xliii., 1909, p. 97. 

 (10). Johnson, E. A., Austr. Med. Gaz., xxvi, 1907, p. 26. 



e.\:planation of plates xxxrr.-xxxv. 



Plate xxxiv. 



Figs. 1-12. — Hremoare'jririnrt moretiiK, in erythrocytes of Python spilolea 

 var. uariegata. 

 42 



