Preface 1 Retinal Structure Ellengene H. Peterson 2 Retinal Function in Turtles Alan M. Granda and David F. Sisson 3 Comparative Analysis of the Primary Visual System of Reptiles Jacques Reperant, Jean-Paul Rio, Roger Ward, Stephane Hergueta, Dom Miceli, and Michel Lemire 4 Optic Tectum Philip S. Ulinski, Dennis M. Dacey, and Martin I. Sereno 5 Anatomy and Physiology of Infrared Sensitivity of Snakes Gerard J. Molenaar 6 Muscle Spindles, Tendon Organs, and Joint Receptors Alan Crowe 7 The Cerebellum Hans J. ten Donkelaar and Gesineke C. Bangma 8 Neuropeptides in the Nervous System Anton J. Reiner