Fig. 2
Representative photographs of dissected abdomens showing silk glands. Aggregate glands (red) are large, multilobed, whitish structures that are only visible in web-building species, shown on the left. Major ampullate glands (green) are whitish but smaller, and have a distinctive duct shape that is easy to recognize. For simplicity, other glands are not labelled (or are too small to see). Yellowish lumps are adipose tissue. Left: Web builder, T. paludicola. Right: Spiny leg, T. brevignatha