Echinostoma species (continued)
OVA
SIZE: 90 x 60 mcm (large, smaller than F. hepatica).
SHAPE: Hen's egg, similar to F. hepatica.
COLOR: Straw.
OPERCULUM: Present, indistinct.
CONTENT--Yolk mass.
ADULT
SIZE: 5 to 20 mm long by 2 to 5 mm wide (medium).
SHAPE: Oval, elongated.
COLOR: Reddish-gray
INTESTINAL CECA: Straight
TESTES: Lobate and tandem.
CIRCUMORAL DISK: Circlet of spines around the oralsucker.
Figure 3-35. Stages of Echinostoma species.
MD0842
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