303 
REPTILES 
A considerable number of snakes, chameleons, lizards, monitors 
and tortoises of several varieties, as well as three or four crocodiles, 
were examined in both the Gambia and in the Congo. Parasites 
were found only in the instances described below. 
SNAKES 
Trypanosomes. 
In stained smears of blood taken from a puff-adder caught in the 
Gambia, a single trypanosome-like object was seen. 
The measurements are as follows : 
Measurements:* 1 ... 6'0/a 
II ... 6'4/a 
III ... 2*4 /A 
IV ... 2I'6/a 
V ... 8'4/a 
VI ... o'6/a 
Total length of parasite 45-0 /a 
The body is long, narrow and tapers at each end to a pointed 
extremity. The body stains a light blue except for two areas between 
the blepharoplast and the nucleus, which stain dark blue. The first 
dark area, extending from the blepharoplast anteriorly, is 14/^ l° n g > 
the second, following a short interval, is 3/a long. I he nucleus is 
composed of red chromatin granules and occupies the entire width of 
the body. The flagellum is a very slender filament. Only a sug¬ 
gestion of an undulating membrane can be seen. 
Drepanidia. t 
Drepanidia of an ordinary type were frequently seen in the same 
snake. The nuclei of the cells containing them were displaced, but 
t In the present state of o 
cation of a Ilaemogregarine 
tec ie\v of what is known co 
eptiles, see Liihe; in Mense’s “ 
Leipzig. 
