316 - SPOROZOA. 



more than 30 merozoites in a corpuscle. Sometimes corpuscles 

 infected with both forms were seen in smears from peripheral 

 blood, and they regard this as suggestive of sexual dimorphism. 

 Habitat. — Blood of the jackal, Ganis aureus JAnn. : Ceylon (?) ; 

 Madras, Kurnool ; blood of the dog, Canis familiaris Linn. : 

 Ceylon (?) ; Madras ; Central Province. Body of 

 Hsema'physalis bispinosa Neumann : Madras, Madras. 



260. Babesia motasi Wenyon. (Fig. 155.) 



Babesia bigemina, Motas, 1903 a, pp. 1522-4 ; 1903 b, pp. 501-4. 

 Piroplasma ovis, Dschunkovski & Luhs, 1909, pp. 149-51 ; 



Lestoquard, 1925, pp. 140-5. 

 Babesia motasi, Wenyon, 1926, pp. 1005-6, fig. 414, 9-12. 

 ■[Babesia motasi, Aehar & Srikantiah, 1934, pp. 1-3, 2 pis. & 2 charts. 

 Babesia motasi, Sarwar, 1935, pp. 171-2 ; Thomson & Hall, 1933, 



pp. 218-220, figs. 1-6. 



Parasites are most frequently pear-shaped, though ovoid, 

 round or irregularly shaped forms are also met with. They 

 occur singly or in pairs, and the pairs always meet at an acute 



155. — Babesia motasi Wenyon. ( X 3000.) 

 (From Wenyon, after Lestoquard.) 



angle at their narrower ends. Chromatin often appears as 

 double. 



Dimensions. — 2-5-4/x in length by 1-2-3 /a in breadth. 



Remarks. — Motas (1903) found this parasite in sheep and 

 considered it to be identical morphologically with B. bigemina 

 of cattle. He also described the transmission of the infection 

 through the agency of the tick, Bhipicephalus bursa Canestrini 

 & Fanzega. The disease caused by this parasite also resembles 

 red-water fever of cattle, and is said to occur in acute or 

 chronic form. Lestoquard (1925) observed this parasite in 

 the blood of goats in Algeria, and showed that the parasites 

 were readily inoculable from one goat to another. He referred 

 to it as Piroplasma ovis, but as the name Babesia ovis is 

 already preoccupied for a piroplasm of sheep of intermediate 

 size, Wenyon (1926) re-named it B. motasi. 



Achar and Srikantiah (1934) have recorded the finding of 

 this species in sheep. They have conducted a few transmission 

 experiments, and report that the parasite was not transmissible 

 to goats. 



Habitat. — Blood of sheep, Ovis sp. : Mysore State. 



