1.5 Euro Ring-tailed lemur

Spain's "Fauna en Peligro" series, under which this piece falls, has drawn criticism from collectors for prioritizing exotic and visually striking animals over the Iberian species the country actually has a conservation mandate to protect. The ring-tailed lemur — endemic to Madagascar, not Spain — has no obvious connection to the issuing authority beyond its appeal on the secondary market.

The 1.5 euro denomination itself is a legal tender fiction, calibrated to retail at a premium while remaining nominally spendable.