Figs 91–96 in Sem Study Of Hooks In The Acanthocephala With Emphasis On Structural-Functional Relationships

Figs 91–96. Proboscis and hooks of Southwellina hispida (Polymorphidae): 91 — a proboscis of a juvenile S. hispida showing the long anterior hooks, the shorter and thicker middle hooks at swelling, and the smaller posterior hooks; 92 — a few anterior hooks; 93 — shorter and more robust middle hooks at swelling; 94–95 — variations on the degree of vacuolation of the core of hooks with relatively thick cortical layer; 96 — a Gallium-cut section of a middle hook showing a thin cortical layer and solid core.