San Marino presents a value featuring the Triturus carnifex, crested newt, an urodelo amphibian about 15 centimeters long whose males, in breeding season, are characterized by a dorsal crest and conspicuously colorful livery. Larvae sometimes suspend metamorphosis by becoming adults but retaining "neotenic" features such as gills.
Contact
Poste San Marino – Philatelic and Numismatic Division
