184 SPOLIA ZEYLANICA. 



Hcemogregarina leschenauUii, mihi. Figs. 4, 5, 6, 7. 



Hsemogregarine with two free motile forms always present in the 

 blood. (1) Slender free form with dense nucleus rather actively 

 motile ; no granules in the protoplasm ; length 26-28 /x. (2) Broad 

 massive granular form ; less active periods of movement succeeded 

 by periods of rest ; length about 26-28 ju. Two endocorpuscular 

 forms also present : (1) long recurved form corresponding exactly 

 with the slender free form, causes hypertrophy of blood corpuscle ; 

 this is always the prevailing type in any infection ; (2) broad form 

 with reticulate nucleus, grows to a large size, as much as 30 /^ 

 (specimen in the figure is not full grown) ; never very numerous even 

 in good infection. Schizogony occurs in the blood. Transmitting host 

 not known. Parasitic in the blood of Hemidactylus leschenauUii. 

 Found at Trincomalee, Ceylon, October, 1907. 



Trypanosoma leschenauUii, mihi. Figs. 8 and 9. 



Length of body of larger specimens 56-60 fi, length of free 

 flagellum, 17-22 m- Many specimens much smaller ; rod-shaped 

 kinetonucleus, well-developed membrane. Body extends a long 

 way behind the kinetonucleus ; actively motile, often revolving in 

 the figure of a wheel ; body very flexible. Parasitic in H. leschen- 

 auUii. Transmitting host not known. Found at Trincomalee 

 Ceylon, October, 1907. 



Trypanosoma pertenue, mihi. Fig. 13. 



Very delicate trypanosome; length of body 30-35 /^, length of 

 free flagellum 15-20 f^. Body very thin with very little proto- 

 plasm ; no granules ; small compact circular nucleus lying about 

 half way from the non-flagellate tip. Kinetonucleus very minute, 

 situated immediately behind the trophonucleus membrane, not 

 sharply marked o£f from body. Parasitic in both Hemidactylus 

 triedri and Tlemidactylus leschenauUii. Got at Trincomalee, in 

 Ceylon, October, 1907. Transmitting host not known. 



Hcemogregarina triedri, mihi. Figs. 10 and 11. 



Hsemogregarine with double capsule, dehcate inner capsule, and 

 loose outer capsule, with tendency to stain very deeply with Giemsa's 

 stain. The inner capsule has an opercular lid at one end. Long 

 slightly recurved specimens with elongated nuclei present, so 

 also broader rather bean-shaped forms. Both forms frequently 

 show an irregularly shaped body at one end, which stains a bright 

 red with Giemsa's stain. The young forms have no capsule. 

 Parasitic in Hemidactylus triedri. Got at Trincomalee in Ceylon, 

 October, 1907. Transmitting host not known. The length of this 

 ^orm is from 13-15 ^. 



