texas toad: nocturnal burrowing toad of mesquite woodland and prairies of the United States southwest
true toad: tailless amphibian similar to a frog but more terrestrial and having drier warty skin
heliobacter pylori: the type species of genus Heliobacter; produces urease and is associated with several gastroduodenal diseases (including gastritis and gastric ulcers and duodenal ulcers and other peptic ulcers)