Physical Characteristics

Pale brownish or orange body with a prominent paramedial pair of dark stripes of pigmentation on dorsum and irregular chain-link patterns medially. In its unfed state, it is normally 0.39-0.78 in (1-2 cm) in length and 0.16-0.19 in (4-5 mm) in width. When the leech is foraging and extended, cephalic somites form an obvious piriform (pear-shaped) shape like the head of a snake. Parabolic arc of 10 cephalic eyes arranged in five pairs. Three jaws in pharynx with fine denticles. Respiratory slits (auricles) are located along the sides near the caudal sucker.

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