H^MOGKEGARINA. 



139 



Haemogregarine with double capsule, a delicate inner capsule 

 and a loose outer one, with tendency to stain very deeply with 

 Giemsa's stain. The inner capsule has an opercular lid at 

 one end. Two forms present : (1) broad, rather bean-shaped 

 form ; (2) long, slightly recurved specimens, with elongate 

 nuclei. Both forms frequently show at one end an 

 irregularly shaped body which stains a bright red with 

 Giemsa's stam. The young forms have no capsule. 

 Transmitting host not known. 



Dimensions. — 13-1 5 |U, in length. 



Habitat. — Blood of the lizard, Hemidactylus triedrus 

 (Daudin) : Ceylon, Trincomalee. 



65. Haemogregarina vittatse Robertson. (Fig. 64.) 



"fHeemogregarina vittatee, Robertson, 1908, pp. 179, 180, 183, figs. 2-3. 

 Hsemogregarina vittatse, Castellani& Chalmers, 1919, p. 487, figs. 149, 



157, 158. 

 '\Hssmogregarina vittatee, Donovan (first recorded in Wenyon, 



1926, p. 1395). 

 ■\Hg&mogregarina vittatse, de MeUo, 1932, pp. 1417-18, pi. i, figs. Rl, 



R2. 



Hsemogregarine infection associated almost mvariably with 

 Trypanosoma vittat^. Two forms present : (1) broad massive 

 form ; (2) recurved form mth pale cytoplasm, the two limbs 



Fig. 64. 



-Hsemogregarina vittatse Robertson. A, elongate, recurved 

 form ; B, broad massive form. (After de Mello.) 



being equally long ; nucleus dense. Broad form shows reticu 

 late dense cytoplasm and rather delicate loose nucleus ; the 

 larger forms have two red-staining plastid (?)-lLke bodies at 

 one end. Schizogony occurs in the spleen and Hver ; eight 

 merozoites are formed ; these are enclosed in pairs in a 

 delicate boat-shaped capsule. Transmitting host probably 

 GlossipJionia. 



Dimensions. — Recurved form 22-26 /x in total length. 



Habitat. — Blood of the tortoise, Lissemys punctata granosa 

 (SchoepiBF.) : Ceylon ; Portuguese India, Nova Goa. 



