Magnified feeding cavity.
A (left). Magnified V-shaped cleavage in Fig. 3B. There are two sectioned mouthparts (arrows) in the feeding cavity (FC). They are disorderly scattered. Hematoxylin and eosin stain. Original magnification: x50.
B (right). Step section of Fig. 3B. A feeding cavity which is spindle-shaped, has several remnants (arrows) of the mouthparts. Hematoxylin and eosin stain. Original magnification: x50.