For last week's Tuesday Tetrapod, we look at Taricha rivularus, or the Red-Bellied newt:
T. rivularis is a plethodontid salamander, which, like other members of the subfamily Pleurodelinae, are sometimes called "newts". They transition to a smooth-skinned morph during their aquatic/breeding stage.
Like many other salamandrids, when stressed they can excrete a whitish neurotoxin on their skin, tetrodotoxin (TTX) which is very potent and can kill an adult human.
T. rivularis is IUCN "Least Concern" and can be found in northern california. The photographed specimen was found in Medecino county.
You can see more photos at CaliforniaHerps.
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