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Wikipedia: The olm, or proteus (Proteus anguinus), is a blind amphibian endemic to the subterranean waters of caves of the Dinaric karst of southern Europe. It lives in the waters that flow underground through this extensive limestone region including waters of the Soča river basin near Trieste in Italy, through to southern Slovenia, southwestern Croatia, and Herzegovina. The olm is the only species in its genus Proteus, the only European species of the family Proteidae, and the only European exclusively cave-dwelling chordate.
![[A coin depicting the olm, in the old Slovenian national currency tolar.]](http://images.ookaboo.com/photo/s/SVN001_s.jpg "A coin depicting the olm, in the old Slovenian national currency tolar.")
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![[The olm, Proteus anguinus]](http://images.ookaboo.com/photo/s/P_anguinus_head1_s.jpg "The olm, Proteus anguinus")
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 from B25es |
 from :sl:Arne Hodalič |
![[The olm swims by serpentine bending of the body.]](http://images.ookaboo.com/photo/s/P_anguinus1_s.jpg "The olm swims by serpentine bending of the body.")
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![[Sketch of the olm in Specimen Medicum, Exhibens Synopsin Reptilium Emendatam cum Experimentis circa Venena by...]](http://images.ookaboo.com/photo/s/Proteus_Laurenti_s.jpg "Sketch of the olm in Specimen Medicum, Exhibens Synopsin Reptilium Emendatam cum Experimentis circa Venena by...")
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from :sl:Arne Hodalič |
from Yerpo |
![[The Black Proteus, a subspecies, has a shorter head with more]](http://images.ookaboo.com/photo/s/P_anguinus_parkelj_head_s.jpg "The Black Proteus, a subspecies, has a shorter head with more")
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![[The research vent]](http://images.ookaboo.com/photo/s/Researchventhole_s.jpg "The research vent")
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from :sl:Arne Hodalič |
from BORIS BL |
![[Disproportionately elongated head with gills.]](http://images.ookaboo.com/photo/s/P_anguinus_head_s.jpg "Disproportionately elongated head with gills.")
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from :sl:Arne Hodalič |
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