164 Journ. of the Asiat. Soc. of Bengali. [May & June, 1915] 
were present, but in rather smaller numbers than in the case of 
normal Ceylon specimens. In all except three instances these 
showed the mono-bothridial type figured in the Ceylon Reports 
of the bed on the same day; no others of the same species 
were subsequently found, though careful search was made. 
Each of these three larvae, when liberated from the enclosing 
cyst, was seen to be sub-spherical in form, one end marked 
as anterior by the presence of four prominent bilocular 
. bothridia set equidistant in the form of a square. At the 
posterior pole a small vesicular organ was present. (Figs. 1-3). 
The points of resemblance borne by the bothridial arrange 
ment and form in these larvae to those of the scolex head of the 
genus Prosthecobothrium are so well marked that I am satisfied 
these larvae belong to that genus; the particular species they 
resemble most closely is P. trygonis, S. and H., and as such 
I tentatively identify them. 
~-eNe _— eee ese 
