Fróðskaparrit - 31.12.2000, Page 183

SNIKAR A SEYðl IFØROYUM
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Fig. 20. Moniezia expansa.
Mynd 20. Moniezia expansa. Bendilormur.
Cysticercus tenuicollis
(Taenia hydatigena)
The tapeworm is found in the intestine of
dogs. The cysticerci, which are up to 8 cm,
are attached to the peritoneum of sheep.
The scolex is armed with 4 suckers and
hooks. (Fig. 22).
Dictyocaulus filaria
White worms, 3.5-9 cm in length, are found
in the bronchi and trachea. (Fig. 23). Lar-
vae (L, first-stage larva) isolated from
fresh faeces have a cuticular knob on the
anterior end. dark intestinal granulation,
and the tail is blunt and straight. (Fig. 24).
Muellerius capillaris
These are brown, hair-like worms, 1-3 cm
long. The tail of the larvae (L,) is charac-
terised by specific cuticular structures at
the posterior end. (Fig. 25).
Fasciola hepatica
The common liver fluke is 2-3 cm long, leaf
shaped, and grey-brown, with a conical an-
Fig. 21. Moniezia expansa, egg.
Fig. 22. Cysticercus tenuicollis, scolex with suckers
and hooks.
Mynd 22. Cysticercus tenuicollis, høvd við súgviskál-
um og krókum.
terior end and caudally converging edges.
(Fig. 26). It is found in the bile ducts and
gallbladder. The egg is oval, golden yellow
and 130-145 pm long.