344 Transactions of the Boyal Society of South Africa. 
The number of hooks is 26-31; they are arranged in two rows, the 
hooks of the two rows differing in size and shape. 
The hooks of the minor row measure in a mature scolex : total length 
128 fi, measured in a straight line from tip to tip, length of blade from tip 
to notch separating handle from blade 88 fx, length of handle 40 ju. 
The guard projects from hook 20 ju, and is bifid, the distance apart of 
the right and left tips of the guard 32 
In a less mature scolex : total length 85 ju, handle 12 ^, guard 16 /u, 
scarcely bifid. 
The hooks of the major row measure in a mature scolex : total length 
168 to 176 blade 120 /x, handle 48-56 ju, guard simple, projecting 
28-32 ^. 
In the less mature scolex already referred to the measurements were : 
total length 176 fi, length of blade 112 ji, handle 56 fx, guard 28 fx. 
Apparently the larger hooks arrive at their full size sooner than the 
lesser ones. 
The diameter of the crown of hooks is about 430 ju. There are four 
suckers, whose diameter is about 250-320 /x. 
The calcareous bodies are very densely arranged in the neck ; they 
measure on the average 10-12 fi in diameter. 
The cysts evidently belong to the type of Ccenurm serialis Eailliet, 
differing from Ccenurus cerehralis Eud. by the bifid guard of the minor 
hooks, and the seat in the muscles. 
S. H. Gaiger described in 1907 two cases of Ccenurus serialis Eailliet 
in goats in India, and was able to rear adults for the identification of the 
species. Apart from his cases, the worm has always been found in 
rodents, except one case in equines (Stiles). 
