bullock published a vast array of papers. other than the species previously mentioned, he also studied the nervous systems of corals, sea urchins, spirunculids, "limulus", "aplysia", starfish, rattlesnakes, rays, sharks, porpoises, sea lions, cuttlefish, catfish, sloths, manatees, salamanders, frogs, turtles, hagfish, crayfish, tuna, ratfish, bats, crabs, octopodes, snakes, rats and humans. in 1965 together with adrian horridge, bullock published the seminal two-volume “bible of invertebrate neurobiology”: "structure and function in the nervous system of invertebrates".