Petromyzontidae

Artaev, Oleg & Ruchin, Alexander B., 2017, The ichthyofauna of the Moksha River, a tributary of the Volga river basin, Russia, Check List 13 (4), pp. 185-202 : 190

Family Petromyzontidae

Eudontomyzon mariae ( Berg, 1931) , Ukrainian Brook Lamprey

Lampetra mariae Berg 1931: 94 .

Eudontomyzon mariae — Levin et al. 2016: 64.

Material examined. Table 1.

Presence of a bicuspid endolateral tooth and spadelike caudal fin. This species was found in the southeastern portion of the Moksha River, which is the northeastern extent of the species’ range. The Moksha River is one of the few tributaries of the Volga River drainage where this species inhabits (Artaev et al. 2013). During spring spawning, this lamprey is observed on almost all pebble shoals in the upper reaches of the Moksha River and its tributaries ( Fig. 4).