Like a cat's eye, venomous snakes have thin, black, vertical pupils surrounded by a yellow-green eyeball while non-venomous snakes have rounded pupils. Florida is home to about 50 species of native snakes, six of which are venomous . Although each of the six venomous species in Florida have unique characteristics that allow them to be readily identified by experts, there are many non-venomous species with which the venomous species may be confused. The most common type of venomous snake in the USA in the pit viper, so called because of the sensitive pit organs between each eye and nostril, which helps it sense and strike warm-blooded prey. Whether coiled or stretched out, they can quickly and accurately strike one-third or more of their body length from any position. Each species of snake exhibits different behaviors. There are key differences that separate venomous vs non-venomous snakes. The venom of cottonmouths destroys tissues, causing excruciating pain and swelling. Figure 7Identifying a venomous snake by its tail. Other structural features facilitate the process including the loose articulation and reduced number of the bones supporting the jaws, a protrusible glottis that permits breathing while the mouth is blocked by prey and sharp, back-pointing teeth which help manipulate and drive the victim irrevocably backward towards the stomach. Behavior is one component that may help identify snakes. Copperheads and timber rattlesnakes have a limited range in Florida. How many times can a cat-eyed snake strike in one attack? Identifying venomous snakes by eyes doesnt work for non-pit vipers, as is the case with the coral snake . Copperheads and cottonmouths can reproduce asexually through a process called parthenogenesis. The venomous species include five pit vipers and the coral snake. Slit pupils can help regulate the amount of light entering a snakes eye, so that they arent blinded when operating in unexpected sunlight.J. A venomous snake will have elliptical, slit-like eyes, resembling a cat, rather than having round pupils. Fun Facts The eastern diamondback rattlesnake is North America's longest, heaviest venomous snake! What kind of eyes do water moccasins have? You May Like: Are Lavender Plants Toxic To Cats. The venomous varieties can be grouped into four basic categories: coral snakes, copperheads, cottonmouths , and rattlesnakes. Required fields are marked *. Relative to their length, these species are heavy-bodied snakes. As weve seen above, nearly all snakes have triangular heads. All of Missouris venomous snakes are members of the pit viper family, and you easily can distinguish them from harmless snakes.