The image is a black and white, detailed illustration of a "circlet of hooks on a scolex". It depicts a circular arrangement of numerous small, curved hooks radiating outwards from a central point. The hooks are densely packed and appear sharp, with a consistent shape and size. The overall impression is one of a biological specimen, likely a parasitic organism, with a specialized structure for attachment. The image is labeled with "FIG. 64." and "× 150.", indicating it is a magnified view of the scolex. The background is a pale yellow, and the image has a vintage, scientific illustration aesthetic.