H^MOGKEGARINA. 



121 



46. Haemogregarina cantliei Sambon & Seligmann. (Fig. 47.) 



■\Hxmogregarina sp., Laveran, 1905 (as noted in Wenvon, 1926, 



p. 1392). 

 ■\Hsemogregarina cantliei, Sambon & Seligmann, 1907 a, p. 1650 : 



1907 6, p. 310. 

 ■fHxmogregarina sp., Patten, 1908, p. 318. 



Hsemogregarina cantliei, Dobell, 1908, p. 293 ; Phisalix, 1913, 

 pp. 304-7, 6 figs. ; Castellani & Chabners, 1919, p. 487 ; Wenvon, 

 1926, p. 1392. 

 Hsmogregarina sp., Wenyon, 1926, p. 1392. 



Adult sporonts club-shaped, the anterior third rounded or 

 globular and the rest of body tapering to a slender tail ; en- 

 closed within thick sausage-shaped capsules. Nucleus median 

 or nearer posterior extremity, oval or irregular in outline and 

 with chromatin frequently arranged in cross-strands. 



Fig. 47. — Heemogregarina cantliei Samb. & Selig. A, uninfected cor- 

 puscle ; B, intra-corpuscular form surrounded by a capsule ; 

 C, D, same without capsule ; E, free forms. (After Phisalix.) 



Dimensions. — Free sporonts, 16-18/x in length by 3-5jU, 

 in breadth ; tail 2-3 /x in length ; nucleus 4/x long by 3/^ 

 broad. 



Habitat. — Blood of the snake, £'r?/a; corners Schneid. {=^Gongy- 

 lophis conicus) : Madras, Madras. 



47. Hsemogregarina hankini Simond. (Fig. 48.) 



'\H8eniogregarina hankini, Simond, 1901 b, pp. 183-5 ; 1901 e, 



pp. 331-8, pi. vii. 

 'fHeemogregarina sp. (? H. hankini Simond), Dobell, 1910, pp. 68, 79, 



pi. ii, figs. 9, 10. 

 Hsemogregarina hankini, Castellani & Chalmers, 1919, p. 486 ; 



Wenyon, 1926, p. 1396. 



The parasite has two forms, vermicular and oval. The 

 vermicular forms are large, doubled-up in the red blood- 

 corpuscles in the circulating blood. Sometimes the two 

 Hmbs approximately equal in thickness, sometimes one 

 considerably thicker than the other. Nucleus a compact 

 mass of deep, purple granules (Giemsa-stained). The oval 



