1. Arcadi, J. A. (1968). Tissue response to the injection of charcoal into the pulmonate gastropod Lehmania poirieri. J. Invertebr. Pathol., 11, 59–62.
2. Bayne, C. J. (1973). Molluscan internal defense mechanism: the fate of 14C-labeled bacteria in the land snail Helix pomatia (L.). J. Comp. Physiol., 86, 17–25.
3. Bayne, C. J. and Kime, J. B. (1970). In vivo removal of bacteria from the hemolymph of land snail Helix pomatia (Pulmonata: Stylommatophora). Malacol. Rev., 3, 103–113.
4. Cheng, T. C. (1967). Marine molluscs as hosts for symbioses. Adv. Mar. Biol., 5, 1–424.
5. Cheng, T. C. (1975). Functional morphology and biochemistry of molluscan phagocytes. Arm. N.Y. Acad. Sci., 266, 343–379.