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NOTE ON A CCENUBUS OF THE DUIKEEBOK. 
By Lewis H. Gough, Ph.D. 
(Bead March 17, 1909.) 
(With 1 Fig. in text.) 
A specimen of a Ccenurus, evidently closely related to, if not belonging 
to Ccenurus serialis Eailliet was found embedded in the muscles between 
the scapula and the vertebral column of a Duikerbok (Cephalophus 
grimmi Linn.) from Cradock, CO., which died in the Zoological Gardens 
of Pretoria on December 22, 1908. 
In view of the small number of intramuscular Ccenurus recorded 
from ruminants, and as the worm differs from Ccenurus serialis in some 
respects, I here give a short account of it : — 
The adventitious or host coat of the cyst was intimately connected 
with muscle fibres, rather irregular in shape, and measured 9 cm. by 3 cm. 
The cyst itself was of the same size, and of approximately the 
same shape, but possessed several diverticula and more or less deep 
constrictions and filled the outer envelope entirely. There were no 
daughter cysts. 
Seven groups of scolices could be seen through the membrane of the 
cyst, up to 60 scolices forming a group. These groups were not confined 
to any one zone of the cyst, but were irregularly distributed. In some of 
the groups the scolices had a tendency towards serial arrangement, in 
others they were arranged in no definite order. 
The scolices were almost all on the inner surface of the cyst — a few 
were, however, everted on the outer surface. 
Externally the position of the scolices was marked by a slight uneven- 
ness, best seen in reflected light. 
The heads were all very nearly of one size, but differed in maturity ; 
their average size was about IJ by 1 mm., the scolex proper only 
measuring f mm. wide, by f mm. long, neck about ^ mm. long. 
Although almost all the scolices were firmly planted on the walls of the 
cyst, a few were attached to it by a thin pedicle. 
