Figure 3
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Ventral surface of thoracic and abdominal segments. Microscopic observation (A) and SEM (B). The maxillae (mouth hooks) of third instar Gasterophilus intestinalis. The mouth hook of the third stage showing polygonal plates (PP), angled plates (AP), and shield tip (ST). Dorsal portion of each mandible is extended into serrated lobe (Asterisk *).
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