21. The syndrome, which affects the abalone's digestive glands , also has been found in pink, red, green and white abalone. 22. A digestive gland secretes enzymes into the stomach, but, unlike some other molluscs, does not digest the food directly itself. 23. The digestive gland in the cerata is red and there are large white spots all over the surfaces of the cerata. 24. In addition to the pericardial glands and nephridum, excretory cells are also present in the digestive glands opening into the stomach. 25. The nephridium is anterior and ventral of the digestive gland , and is in contact with the dorsal side of the foregut. 26. Upon capture of prey, the leaf curls around it to bring it into contact with as many digestive glands as possible. 27. In the Venus flytrap, this same molecule has been found to be responsible for the activation of the plant's digestive glands . 28. It is the sporocysts, which are long and tangled within the mollusk host's digestive gland , that cause parasitic castration of the host. 29. The digestive gland in the cerata is usually red and there is purple surface iridescence on the outer part of the cerata. 30. The gross signs of infection include colourless and translucent tissues because of resorption of the gonad and a pale yellow-brown digestive gland .
