1. Albrecht, H. (1962) Die Mitschattierung. Experientia, 18, 284–6.
2. Ali, M.A. (ed.) (1978) Sensory Ecology: Review and Perspectives, Plenum Press, New York and London.
3. Ali, M.A. (ed. (1980) Environmental Physiology of Fishes, Plenum Press, New York and London.
4. Appleby, S.J. and Muntz, W.R.A. (1979) Occlusable yellow corneas in Tetraodontidae. J. Exp. Biol., 83, 249–59.
5. Arnott, H.J., Best, A.C.G., Ito, S. and Nicol, J.A.C. (1974) Studies on the eyes of catfishes with special reference to the tapetum lucidum. Proc. R. Soc., B, 186, 13–36.