308 



SPOROZOA. 



■\Piroplasina canis, Daggetty, 1904, pp. 67-8 ; Lingard & Jennings, 

 1904, pp. 161-5, pi. i, fig. 10 ; Stephens & Christophers, 1904, 

 pp. 334-5, fig. 74. 

 Piroplasma canis, Nuttall & Graham- Smith, 1905, pp. 237-49 ; 

 1906, pp. 586-651, pis. xi-xiii and 23 text-figs. ; 1907, pp. 232- 

 72, pis. i-iii. 

 ^Piroplasma canis, Webb, 1906, p. 1; Christophers, 1907 o, 



pp. 76-8 ; 1907 6, pp. 1-83, 3 pis. 

 Piroplasma canis, Nuttall & Graham-Smith, 1909, pp. 211-14, 



pi. ix. 

 ■^Piroplasma canis, Baldrey, 1910, pp. 569-79 ; Gaiger, 1910, p. 66 ; 

 Brandford, 1912, pp. 643-6. 

 Babesia canis, Schuberg & Reichenow, 1912, pp. 415-34, pi. ii. 

 Piroplasma canis, Minchin, 1912, pp. 382-3, 384-5, 387, figs. 161, 



162. 

 "^Piroplasma canis, deMello, de Sa, de Sousa, Dias, & Noronha, 1917, 



p. 16. 

 Piroplasma canis, Castellani& Chalmers, 1919, pp. 493-6, fig. 163 ; 

 Velu, 1922, pp. 224-40, figs. 29, 30 ; Hegner & Taliaferro. 1924, 

 pp. 303-4, fig. 114. 

 ■^Piroplasma canis, Rau, 1926, pp. 243—4. 

 Babesia canis, Wenyon, 1926, pp. 1012-20, pi. xviii ; figs. 410, 417, 

 418, 419, 421; KJaowles, 1928, pp. 446-50, figs. 103, 104; 

 Reichenow, 1929, pp. 1032-4, figs. 1016, 1018. 

 ■\Piroplasma [Babesia) canis, Stirluig, 1929, pp. 647-53. 

 Babesia canis, BeKtzer & Markoff, 1930, pp. 498-601 ; Regendanz, 

 1932, pp. 745-8 ; Regendanz & Reichenow, 1933, pp. 50-71, 

 2 pis., 1 fig. ; Reichenow, 1935, p. 378, fig. 31. 



The Cycle in the Dog. — Parasites typically pear-shaped, 

 rounded and bulbous at one end and pointed at the other, with 





Fig. 150. — Babesia canis, development in the dog ( x c. 3000). A, pear- 

 shaped form ; B, vacuolated form ; C, rounded form ; 

 D-G, stages in the process of budding ; H-J, ultimate 

 formation of pear-shaped individuals. (After Nuttall and 

 Graham-Smith. ) 



a vacuole in the cytoplasm ; 4-5-5;u, in length. In films 

 stained with Romanowsky's stain the nucleus is seen as a 

 deeply stained granule , situated near the pointed end, with 

 a string of fine granules extending from it. This tj^ical 



