REPORT OF TRAVELLING PATHOLOGIST AND PROTOZOOLOGIST 
135 
dimensions as the original ones which entered, hut they were altered in other respects. The 
same organs were present, but the long pointed tail was lost and replaced by what in side 
view appeared to be a short blunt tail terminating in two lobes, the ventral lobe being larger 
and continued further back than the dorsal. Within the body of the cyclops I was not able 
to make out the presence of any membrane or sheath enclosing the embryos. These 
observations confirm in every essential point the results obtained by Dr. Leiper. I was 
unfortunately prevented from feeding monkeys with infected cyclops owing to the untimely 
death of all my material, and the early fall in the -Tur Eiver which necessitated my leaving 
Wan earlier than I had intended. 
.\t Nasser, on die Sobat, and again at Bor, on the Jebel, I saw single cases of guinea worm, 
hut these gave only dead embryos, which of course were useless for experimental purposes. 
Trypanosomiasis in Domestic Animals 
Camels 
I first saw trypanosomiasis in camels returning from the Bahr-El-6hazal Pro\nnce in 
April. Four camels survived to return to Taufikia out of about seventy which had left 
Khartoum for telegraphic transport three or tour months before. After leaving the river the 
following route had been followed in the Bahr-El-Ghazal Province—Shektombi to Alyab, 
thence along telegraphic line to M'volo, from there to Eumbek and back to the river at Shambe. 
The first of the camels died at Bufi between M’volo and Shektombi. The majority died at 
Shambe, after the transport work was finished. What information I could get as to the biting 
flies that attacked the camels was too indefinite to be of use. Judging from the four camels 
that survived to return to Taufikia, three of which revealed trypanosomes on blood examination, 
it is probable that all the camels died of trypanosomiasis. In the same transport the donkeys 
and mules suffered, but to a less extent. Of these animals about 25 per cent, died probably from 
the same cause. I was, however, unable to examine any of the surviving donkeys and mules. 
The much higher death rate among the camels is due probably to the fact that these 
animals are not indigenous to this part of the Bahr-El-Ghazal Province, and that they are 
brought in to do special work and prove to be highly susceptible. 
The country consists of grass-land, bush, swamp, and river, and is naturally unsuitable 
for camels. The death-rate is always high, but the camels survive long enough to carry out 
the work for which they were introduced. Trypanosomiasis in the case of these animals is 
of quite a different nature to the trypanosomiasis occurring in camels in countries where 
camels are indigenous. In the case of donkeys and mules—animals which are commonly seen 
in this part of the Bahr-El-Ghazal —the trypanosomes found in the blood of infected animals 
are of the Trypanosoma pecaudi type, and one would expect that camels becoming infected in 
the same district would show the same trypanosome. In the case of the camels at present 
under discussion, unfortunately, no experimental animals were inoculated, but the various forms 
of the trypanosome found in the stained blood films are figured in Plate X., figs. 10-14. 
IMorphologically there are some differences between this trypanosome and the forms met with 
in the blood of donkeys (Plate L, fig. 1) and other animals, but these are only slight variations. 
The broad forms (Plate X., fig. 12) are not so broad, and the long forms (figs. II and 14) have 
a shorter free flagellum. The three main types occur, however, in both cases—viz., the small 
tadpole forms (fig. 10), the broad forms (fig. 12), and the long form with free flagellum 
(fig. 14). The vacuole situated near the micronucleus which is so characteristic of the 
trypanosomes as they occur in other animals is found here also, so that I would 
suggest that the slight morphological differences are merely due to the difference in the host 
Trypanoso¬ 
miasis in 
domestic 
animals 
Trypanoso¬ 
miasis in 
camels in the 
Bahr-EI- 
Ghazal 
