304 
Tapeworms of Poultry 
as a rather wide indistinct parenchymatous tube filled with eggs and ends 
blindly in the parenchyma. In a proglottis at this stage of development the 
anterior half is already full of fertilised eggs; in the stage immediately pre¬ 
ceding, the uterine tube has more definite walls but still ends blindly, while 
but few eggs are visible in the proglottis. In proglottides ready for detach¬ 
ment, the eggs fill the entire segment, extending laterally to the excretory 
vessels almost to the margin of the segment. Adjacent proglottides are sepa¬ 
rated only by a thin plate of parenchyma. The egg is ellipsoidal, measuring 
0-63 mm. x 0-583 mm. and the onchosphere 0-288 mm. x 0-249 mm. 
COTUGNIA BROTOGERYS (Meggitt, 1915). 
This species from a parakeet, Brotogerys tirica, has already been described 
in detail (Meggitt, 1915). Revision of the material has recently shown that 
this description is inaccurate in one respect. It has been stated (p. 54) that 
the parenchymatous capsules each contain several ova. This is not correct. 
In young segments the eggs lie singly in separate capsules. As the proglottis 
matures the number of eggs increases and the capsules become packed so closely 
together that in many cases the walls separating them disappear. The capsules 
thus appear each to contain several ova. 
The testes surround the longitudinal excretory vessel except on the dorsal 
surface, a condition exactly opposite to that in C. digonophora. Antero- 
posteriorly, the band of testes consists of five rows; dorso-ventrally they lie 
in the centre of the proglottis. 
COTUGNIA FASTIGATA n. sr. 
Amongst a large number of H. coronula (Duj.) from domestic ducks, 
Rangoon, were found several complete specimens of a Cotugnia. Upon ex¬ 
amination these proved to represent a new species for which I propose the 
name Cotugnia fastigata n. sp. and which may be identified by the key 
attached to the following description. 
The length is 30 mm., the breadth 6 mm., and all the proglottides are 
broader than long. In shape the strobila (PI. XVI, fig. 4) is triangular, widest 
at the base and narrowing gradually towards the head. The scolex is 
0-5-0-6 mm. diameter, and is provided Vith four unarmed suckers and an 
armed rostellum. The latter is 0-29 mm. diameter, and bears approximately 
200 hooks, 0-02 mm. long, arranged in a double row, the hooks of the two 
rows alternating. It proved impossible to ascertain the exact shape of the 
hooks owing to the difficulty of isolating them; one figured in Text-fig. 1 is 
from a section and has obviously been cut at the place marked x. The base 
of each hook (PL XVII, fig. 8) has a fine sheath of muscle (m.) surrounding it. 
Posteriorly this merges into a fine muscle strand 0-5yu diameter which, uniting 
with adjacent muscle strands, ultimately joins the body longitudinal muscles. 
Externally to the hooks and surrounding the rostellum is a thin sheath of 
transverse muscles. 
