their gut. These are of two kinds, possibly more, 
(i) F. grayi c? very slender and very long compressed 
nucleus ; blepharoplast anterior, free flagellum long 
(Fig. 108). ? bulky, protoplasm containing many 
staining granules (chromidia), nucleus oval or round, 
blepharoplast variable in situation, free flagellum very 
short. Young and indifferent forms, many of the 
Fig. 108 (i) F. gambiense, $ ; ( 2 ) F. gambiense , 2 ; 
( 3 ) F . gambiense (indifferent form); ( 4 ) F. grayi , encysted stage ; 
( 5 ) F. grayi , $ ; (6) 2 ; (7) indifferent; (8) dividing form 
latter being round and also containing chromidia. 
Dividing forms are characterized by the fact that one is 
much larger than the other; the smaller having the 
blepharoplast anterior to the nucleus, while the larger 
has it posterior. 
