1. For review see: Fleissner, G., Fleissner, G., in: Neurobiology of Arachnids (ed. F.G. Barth). Berlin: Springer (in press);
2. Root, T., in: Biology of Scorpions (ed. G. Polis). Stanford Univ. Press (in press)
3. Machan, L.: S. Afr. J. Sci. 63, 512 (1967);
4. Carricaburu, P., Cherrak, M.: Z. vergl. Physiol. 61, 386 (1968);
5. Fleissner, G.: Verh. dtsch. Zool. Ges. 1968, 375; Yinon, U.: Comp. Biochem Physiol. 30, (989) (1969)