OLM

(Proteus anguinus), blind salamander belonging to the family Proteidae (order Caudata) and found in caves of the Carpathian Mountains in southeastern Europe. It grows to about 30 cm (12 inches) long and has a normally white (unpigmented) body, tiny limbs, red gill plumes, narrow head, and a blunt snout. The olm's vestigial but light-sensitive eyes are covered with skin. It usually lays eggs but sometimes bears its young alive.