A few secrete colouring matters other than chlorophyll.
Then come the glandular surface (C), which is formed of smooth polished epidermis with numerous glands that secrete the fluid contents of the pitcher, and finally the detentive surface (D), of which the cells are produced into long and strong bristles which point A FIG.
Boutaric, Correspondance secrete de Louis X V.; Madame de Pompadour's Correspondance published by P. Malassi; Dietric, Les Mattresses de Louis X V.; and Fleury, Louis XV.
By P. Viollet, Paris pendant la Revolution d'apres les rapports de la police secrete, 1789-1800 (4 vols., 1880-1894); A.
It is very probable that in Scorpio they do not serve merely to secrete a digestive fluid (shown in other Arthropoda to resemble the pancreatic fluid), but that they also become distended by the juices of the prey sucked in by the scorpion - as certainly must occur in the case of the simple unbranched gastric caeca of the spiders.