502 



TELOSPORIDIA 



Genus Rangelia Carini and|Maciel, 1914. 



Definition. — Piroplasmidae, often in pairs, With rounded, oval, or 

 pyriform appearance. With easily visible cytoplasm. Schizogony in 

 endothelial cells in internal organs. Merozoites very numerous. 



Type Species. — Rangelia vitalli Pestana, 1910.' ^ 



Rangelia vitalli Pestana, 1910. 

 This is the cause of a disease in dogs in Brazil called nambiavu. 



Genus Rossiella Nuttall, 1910. 



Definition. — Piroplasmidae of unusual type, with voluminous 

 cytoplasm, not pigmented; rounded form and rounded nucleus, 

 which is not peripherally placed. Schizogony in red cells, division 

 first into two and subsequently in more merozoites. 



Type Species. — Rossiella rossi Nuttall, 1910. 



Rossiella rossi Nuttall, 1 910. 

 Parasite of Canis adustus in Africa. 



Genus Elleipsisoma Franga, 1910. 



Definition. — Piroplasmidae of unusual type, with voluminous 

 cytoplasm., not pigmented; living in red blood cells which become 

 dehsemoglobinized. Schizogony in the lungs. 



Type S^^ecies,— Elleipsisoma thomsoni Franga, 1910. 



Elleipsisoma thomsoni Fran9a, 1910. 

 Parasite of Talpa europcea and T. cceca. 



Genus Bartonella Strong, Tyzzer, Brues, Sellards, and Gastiaburu, 



1915. 



Definition.— Piroplasmidse with rounded or rod-shaped dividing 

 forms, sometimes in chains; reproduction by binary division, 

 cytoplasm and chromatinic substance often differentiated with 

 difficulty. Motile. Habitat, red blood-corpuscles. 



Type and Only Species. — Bartonella hacilliformis Strong, Tyzzer, 

 Brues, Sellards, and Gastiaburu, 1915. 



Bartonella bacilliformis Strong, Tyzzer, Brues, Sellards, and 

 Gastiaburu, 191 5. 



Definition. — Bartonella with the characters of the genus. 



History. — In 1901 and 1902 Barton found an organism in Oroya 

 fever which Tamayo and Gastiaburu identified as belonging to the 

 paratyphoid group. 



In 1905 Barton described bacillary-like bodies in the red cells of 

 persons suffering from malignant fever. In 1909 he noted these 

 bodies in fourteen additional cases, and stated that they Were 



