MALARIA EXPEDITION TO NIGERIA 
231 
Other H 
A EM AM OKI! I DA E 
Haemamoebidae danilewskii was found in a large number of birds, viz. : — 
Columba livia (The common pigeon) 
Turtur senegalensis (The wild dove) 
Passer diffusus 
Ceryle rudis (Black and white kingfisher) 
Cypselus ajfinis (Humming bird) 
Alcedo guentkeri (Blue and red kingfisher) 
At Old Calabar a flock of pigeons (common tame pigeon), obtained from the 
native town, were found infected with Halteridium throughout, while at a European 
factory among pigeons which had been in the country for nine months none were 
found to be infected. The factory was at some distance from native dwellings, and 
the pigeons had never mixed with any from the native town. Similarly some 
pigeons from Bugama, which had been in the country some eighteen months, were 
not infected — they had no opportunity of contact with pigeons from the native town, 
which is some two miles distant. 
At Lokoja a number of tame pigeons were examined — they were obtained 
from different sources : some were infected, others not — they had lived in contact 
some weeks. 
Our own collection of pigeons, some of which were infected, were together in 
a wooden cage for some three or four months, but infection remained limited to 
those originally infected. 
Attempts were made to cultivate Halteridium in mosquitoes of both genera, but 
they failed completely. 
Haemamoebidae relicta — Proteosoma was never found, although hundreds of 
birds of many different kinds were examined. 
Other blood parasites — Numerous domestic fowls and a number of small bats 
were examined, but no blood parasites were found. 
