the olm or proteus proteus anguinus, der grottenolm or covjecja ribica - the grotta baredine or baredine cave, istria

albino amphibia amphibian ancient anguinus animal antique aquarium aquatic attraction background baredine biology blind cave caves closeup covjecja creature cute darkness der drawing endangered endemic engraved engraving environment etching europe exotic fish grotta grottenolm habitat head hrvatska human isolated istra istria jama natural nature neotenic nova old olm picture proteidae proteus ribica salamander slovenia snake spilja stone swimming travel underwater vas vertebrate vintage water white wildlife