UNIVERSITY OF FLORIDA BLY. 362.-Insect Biology. 2 hours, and 6 hours laboratory or field work. 4 credits. Prerequisite: BLY. 161-162. Offered 2. The morphology, classification and natural history of insects, with special emphasis on the local fauna. BLY. 373.-General Animal Physiology. 2 hours, and 6 hours laboratory. 4 credits. Prerequisite: BLY. 161-162. Graduate major credit. Offered 2, 3. An introduction to the general and comparative physiology of animals. BLY. 401.-lchthyology. 1 hour, and 6 hours laboratory and field work. 3 credits. Prerequisite: BLY. 161-162. Offered 1. An introduction to the biology of fishes. Designed to provide a knowledge of the morphology, taxonomy, life history, geographic distribution and evolution of the fishes with special reference to the fresh water fishes of Florida. BLY. 404.-Herpetology. 1 hour and 6 hours laboratory and field work. 3 credits. Prerequisite: BLY. 161-162. An introduction to the biology of the amphibians and reptiles. Designed to pro- vide a knowledge of the morphology, taxonomy, life history, geographic distribution and evolution of the amphibians and reptiles, with special reference to the Florida forms. BLY. 410.-Mammalian Anatomy and Physiology. 2 hours, and 6 hours laboratory. 4 credits. Prerequisite: BLY. 209. Offered 2. Lectures on the physiology ard anatomy of the mammalian body supplemented by individual dissections of the cat. BLY. 415.-Mammalogy. 1 hour, and 6 hours laboratory or field work. 3 credits. Prerequisite: BLY. 161-162. Offered 1. An introduction to the biology of mammals, dealing with the morphology, tax- onomy and distribution of mammals of the world, with special emphasis on the natural history of those of the southeastern states. BLY. 416.-Animal Parasitology. 3 hours, and 3 hours laboratory. 4 credits. Prerequisites: BLY. 208-209. Offered 2. Graduate major credit. The animal organisms, especially the Protozoa and worms, that cause disease in man and the higher vertebrates. BLY. 420.-Ornithology. 1 hour, and 6 hours laboratory or field work. 3 credits. Prerequisite: BLY. 161-162. Offered 2. An introduction to the biology of birds. Designed to provide some knowledge of the morphology, taxonomy, distribution and adaptations of the birds of the world, with particular emphasis on the local avifauna. BLY. 425.-Freshwater Ecology. 2 hours, and 6 hours field or laboratory work. 4 credits. Prerequisite: BLY. 208. Offered 2. Graduate major credit. Character and occupants of freshwater animal habitats in Florida. Recognition of the common aquatic animals and plants is required and class work is a seminar-type approach to pertinent general ecological principles. BLY. 426.-Terrestrial Ecology. 2 hours, and 6 hours field or laboratory work. 4 credits. Prerequisite: BLY. 208. Offered 1. Graduate major credit. A survey of terrestrial animal habitats in Florida, their occupants and methods of studying them. Recognition of the common animals and plants forming the land communities is required. Class work is a seminar-type approach to pertinent general ecological principles. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.