This has also been shown for the rough-skinned newt, "Taricha granulosa". The rough-skinned newt ("Taricha granulosa") is a newt known for its strong poison. The rough-skinned newt ("Taricha granulosa") produces the neurotoxin tetrodotoxin, the most toxic nonprotein substance known. The Taricha Granulosa, or Rough-Skinned Newt, is a salamander in the caudata order. The rough-skinned newt ("Taricha granulosa") is found at Marion Lake during the amphibian's breeding season. Other prominent amphibians within the range of "P. stormi" include the rough-skinned newt, "Taricha granulosa".