Eudontomyzon lampreys were recently discovered in the Almopaios River’s main stem
approximately 30 river kilometers downstream of Aridea river tributary, where specimens
are known to have a stronghold in the past and have been collected recently as well.
Molecular analyses assert that these lampreys belong to the taxon provisionally named
Eudontomyzon sp. Almopaios, a brook lamprey; however, this species has not yet been
formally described. Our genetic analysis provided a firm phylogenetic position for
this population showing that their nearest relative is Eudontomyzon danfordi which
has a center of distribution in the mid-Danube tributary basin, the River Tisza’s
catchment area. With the discovery and molecular confirmation of new specimens, this
taxon’s known distribution is presented for the first time; and particularly, the
southernmost distribution area is located within a Natura 2000 protected area. However,
this area is planned to be altered by a dam and river diversion. Conservation initiatives
and steps towards further study are proposed.
