A FEW NOTES ON THE PROTOZOA PARASITIC IN Bllfo TPflularif 



361 



A. C Stetbnbon 5-f^/j, =20 ft 



Fift. 107. — Flaftellate3 iQ Intestine of Brt/^7 rcgitlaris 

 a-/.— Trichomonas I'nhxfiorum g-n.—Octoii:iliis ^Hrxniiiitiis) diijanllni 



Ciliates 

 Nyctotherus cordiformis and a Balantidium are both common, but instead of Opalina we 

 have another organism something of the same class though it differs in its nuclear 

 arrangement. The largest specimens of this are about 80/j by 60/1, while the smallest are 



iiiiiiiiffiMuttifci, 



Ciliates 



A. C. Stkvkms 



Fi5. 103, — Dnnamed organism in Hufo regitlaris (Khartoum Toad) 



X 450 dia 



about 60/[( by 16/li. They are covered by cilia of a uniform length, have no apparatus 

 for ingestion or egestion, and the nucleus usually consists of two pear-shaped bodies 

 connected by a definite narrow strand (Fig. 108). Up to the present I have not identified 

 this. It is characterised by having a definite spine at one end, especially in the smallest 

 and middle-sized forms. 



I cannot conclude without expressing my deep thanks for the help and kindness 

 I received from Dr. Balfour, ^Ir. Currie, and any official of the Sudan Government, from 

 the Sirdar downwards, with whom I came in contact. 



