Widemouth blindcat  (Satan eurystomus)

Due to the inaccessibility of its habitat, little is known about the widemouth blindcat. It is known to eat shrimp, amphipods, and isopods, and may also prey on the toothless blindcat, Trogloglanis pattersoni (5). The widemouth blindcat possesses a well-developed lateral line (a row of receptors that can detect movement via vibrations in water), which is thought to be the primary sense with which it locates prey (6). It is this, along with the frequent presence of crustacean skeletons in its gut, and its muscular stomach, that suggests that the widemouth blindcat may be the top carnivore in the Edwards Aquifer system (6).