Snail habitats reflect the variety of landforms and water bodies in Texas. Unfortunately, dogs and other animals are also attracted to these pellets, and when they eat them they can also die. The Giant African Snail has been spotted in Texas. 1/4 to 2" They trap air under their wings to breathe underwater. Mollusk. About 64% of snail species in freshwater habitats are in some level of imperilment and another 10% are considered extinct. At this website, one can view lists of native freshwater snails by state or province boundary, and plot distributions of snails by political boundaries. Some suggested reading includes: Price, Andrew H. Poisonous Snakes of Texas. Snail Poison Warning. Some of them breathe air from a "lung," an air-filled cavity so they can live in water with little oxygen. Researchers said they are channeled apple snail eggs, which carry a toxin that can cause serious health issues. 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. This is the first known possible spotting of a giant snail in Texas and no one knows how it got here. Snails. It comes in may forms (usually pellets) that attract the snails to eat them. The species contains some special adaptations to its teeth and jaws, which enables them to eliminate snails from their shell rather easily. Stay away from snail killing pesticides that include metaldehyde as an ingredient. Ad. Diving Beetle. The softball-sized beast is also a considerable pest. Diving beetles eat small aquatic animals. Austin: Texas Parks and Wildlife Press, 1998 (out of print, 2005) Tennant, Alan. Their bite is painful. 1/4 to 1" Snails eat diatoms, plants, and algae. 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. 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. However, the Texas snail fauna consists of at least 400 marine, 42 freshwater, and 165 terrestrial species. They reproduce rapidly and can lay 1,200 eggs a year. Lists can be downloaded for use in reports or analyses. Photo credit: Joe Raedle/Getty Images. Excellent, current information on Texas snakes and particularly the venomous snakes, can be found in a number of good books. Insect. 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. A Field Guide to Texas Snakes. … The number of species in Texas is difficult to estimate due to incomplete knowledge of the fauna.