The olm or proteus is an aquatic salamander which is the only species in the genus Proteus of the family Proteidae and the only exclusively cave-dwelling chordate species found in Europe; the family's
Proteus anguinus Postojnska Jama Slovenija
The olm as depicted by the French biologist Gaston Bonnier in 1907
The front part of the olm's head carries sensitive chemo-, mechano-, and electroreceptors.
The olm swims by serpentine bending of the body.
The family Proteidae is a group of aquatic salamanders found today in the Balkan Peninsula and North America. The range of the genus Necturus runs from southern central Canada, through the midwestern
Olm
…The olm (German: ) or proteus (Proteus anguinus) is an aquatic salamander which is the only species in the genus Proteus of the family Proteidae and the only exclusively cave-dwelling chordate species found in Europe; the family's other extant genus is Necturus. In contrast to most amphibians…
Necturus maculosus maculosus