Figs 73–78 in Sem Study Of Hooks In The Acanthocephala With Emphasis On Structural-Functional Relationships

Figs 73–78. SEM of proboscis and hooks of Nephridiacanthus major (Oligacanthorhynchidae): 73 — hook arrangement and prominent neck of N. major; 74 — a dorso-lateral view of proboscis showing slightly elevated surface of apical organ; 75 — dorsal view of a short posterior hook; 76 — a Gallium-cut section of a hook near its base with prominent ventral expansion similar to that in M. hirudinaceus with almost no cortical layer seen; 77 — a perfectly spherical Gallium cut cross section of another hook near its terminal end; 78 — a lateral Gallium-cut section of another hook showing the same core-cortical relationships as in figs 76 & 77. Note the continuity with the elaborate root.