with their present classification and generic synonymy, and 

 connection with malaria. 



Transmission experi- 

 ments. 

 Cycle observed o( — 

 M.T. Malignant tertian, 

 s. T. Simple tertian, 



Q. Quartan ; 



of z. to zygote stage, 



and s, to sporozoite 



stage 



Obser\ations regarding 



transmission in nature. 



(z) Zygote and 



(s) Sporozoite stage 



observed 



Epidemiological 

 evidence of 

 transmission 



Newstead, 

 Dutton & 

 Todd, (T) 



Possibly = .-4 . vigrifasciatus var. 

 = ^4. punctulatus Donitz. 

 = (?) yl. macuHpennis. 



— A. aitkeni James (?). 



= A. mauritianus Grandpre. 

 -A. sinensis. 



= A. pseudopictus Grassi. 

 = A. pseudopictus Grassi. 

 = A . hispaniola. 



-A. sinensis. 



Cruz, (t) 



Darling, m.t. 

 (s) 



Only slightly concerned in trans- 

 mission in Canal Zone (Darling). 

 I2'9 °,'o of those fed by DarUng 

 became infected. 



= A . maculatus. 



Hirschberg, 



(F) 



Stephens & 

 Christophers, 



Q. M.T. 



Laveran, 



James, Stephens & Little relation 

 Christophers, (f) ; 

 Bentley, Staunton 



■ A. bigotii. 



= A. macuHpennis (American). 



Apparently transmit very little, if at 

 all, in nature, though commonest 

 Indian species. 



=A . indepnata Ludlow. 



= ? ^. sinensis. 



Unlikely to be Hill species, 

 transmitter 

 from distribu- 

 tion. 



