Spotted paddle-tail newt
"Pachytriton" species are stout-bodied, smooth-skinned aquatic newts. Their heads are large and flattened, and they have conspicuous labial folds and short, stubby legs and toes. They breathe through both lungs and skin. 
"P. brevipes" ranges from 5.5 to 7.5 in as an adult. It has prominent labial folds, long digits, and smooth skin, which differs from the tuberculate skin typical of newts.
Italian crested newt
"T. carnifex" are ectotherms. This means that the internal forces of this newt that control the body temperature have almost no importance. They are traditionally called “cold-blooded” although blood has really nothing to do with how these animals thermoregulate. This means that "T. carnifex" will regulate in a way that depends more on behavior. When there is a large range of environmental temperatures, newts are very insensitive to a thermal gradient profile.