Opisthorchis species--O. viverrini and O. felineus (continued)
OVA
SIZE: 30 x 15 mcm (small) (12 end to end per HPF).
SHAPE: Vaselike.
COLOR: Yellowish-brown.
OPERCULUM: Present, pronounced.
CONTENT: Miracidium.
ADULT
SIZE: 7 to 11 mm long x 2 to 3 mm wide (medium).
SHAPE: Oval, elongated
COLOR: Grey to brown
INTESTINAL CECA: Straight
TESTES: Lobed and oblique
Figure 3-21. Stages of Opisthorchis species.
MD0842
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