In some marine species of snail, those teeth have evolved into a virtual dart gun the snail shoots at his prey which is so venomous it kills can kill a human in 15 minutes. The red-bellied snake diet is composed mainly of slugs however they also feed on snails, beetle larvae, earthworms, other insects, and occasionally even smaller frogs or tiny salamanders. About 64% of snail species in freshwater habitats are in some level of imperilment and another 10% are considered extinct. Their bite is painful. Austin: Texas Parks and Wildlife Press, 1998 (out of print, 2005) Tennant, Alan. Photo credit: Joe Raedle/Getty Images. Unfortunately, dogs and other animals are also attracted to these pellets, and when they eat them they can also die. 1/4 to 2" They trap air under their wings to breathe underwater. However, the Texas snail fauna consists of at least 400 marine, 42 freshwater, and 165 terrestrial species. A Field Guide to Texas Snakes. Snail Poison Warning. … The number of species in Texas is difficult to estimate due to incomplete knowledge of the fauna. The softball-sized beast is also a considerable pest. Snails In Texas Have Been Misidentified As Giant African Land Snails: USDA (UPDATE) UPDATE: May 9 -- Tanya Espinosa, a spokeswoman for the USDA's Animal and Plant Health Inspection Service, told The Huffington Post that the snails have potentially been misidentified, and that they are in fact Rosy Wolf snails, a species native to the region. Insect. They reproduce rapidly and can lay 1,200 eggs a year. Stay away from snail killing pesticides that include metaldehyde as an ingredient. Lists can be downloaded for use in reports or analyses. The Giant African Snail has been spotted in Texas. Diving Beetle. Researchers said they are channeled apple snail eggs, which carry a toxin that can cause serious health issues. This is the first known possible spotting of a giant snail in Texas and no one knows how it got here. Ad. Some of them breathe air from a "lung," an air-filled cavity so they can live in water with little oxygen. Mollusk. Excellent, current information on Texas snakes and particularly the venomous snakes, can be found in a number of good books. Snail habitats reflect the variety of landforms and water bodies in Texas. Diving beetles eat small aquatic animals. It comes in may forms (usually pellets) that attract the snails to eat them. Snails. 1/4 to 1" Snails eat diatoms, plants, and algae. The species contains some special adaptations to its teeth and jaws, which enables them to eliminate snails from their shell rather easily. Some suggested reading includes: Price, Andrew H. Poisonous Snakes of Texas. At this website, one can view lists of native freshwater snails by state or province boundary, and plot distributions of snails by political boundaries. The inch-long, rare, venomous 'blue dragons' sea slugs were spotted by a seven-year-old boy vacationing with at Texas' Padre Island National Seashore earlier this month.