Pseudotriton ruber

The red eft stage of the red-spotted newt contains toxic, bad-tasting chemicals in its skin. As a result, many potential predators learn to avoid this animal, and will not eat red efts. The range of the red salamander Pseudotriton ruber) overlaps part of the larger range of the red-spotted newt in the eastern United States. It appears that the superficially similar but non-toxic red salamander may be a mimic of the color of the red eft, taking advantage of the fact that many predators avoid this animal as food. 

Found in the skin secretions of the red salamander (Pseudotriton ruber). A high-MW toxin ca. 200 000. Effects like tetrodotoxin qv. 

Paracentrotus lioidus, 350 Peromyscus maniculatus, 223 Phaseolus coccineus, 114, 115 Phaseolus vulgaris, 114 Phormia regina, 341, 367 Pieris hrassicae, 349 Plethodon, 100 Plethodon cinereus, 101, 107 Plethodon jordani melaventris, 107 Plethodon vehiculum, 107 PleuTodeles waltlii, 36, 286 Pseudotriton ruber schencki, 107... 

Brandon, R. A., Labanick, G. M. and Huheey, J. E. (1979) Relative palatability, defensive behavior, and mimetic relationships of Pseudotriton ruber, P. montanus, and red efts. Herpetologica, 35, 289-303. 

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