Cyprinus carpio Linnaeus, 1758

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 : 195

Cyprinus carpio Linnaeus, 1758 , Common Carp.

Cyprinus carpio Linnaeus 1758: 320 — Kottelat and Freyhof 2007: 148.

Material examined. Table 1.

Presence of two pairs of barbels and 15–20 branched dorsal-fin rays. According to our observations, it was found only in storage reservoirs; however, artificial stock- ing of this species in ponds is known, as well as rare cases when it is caught in the Moksha River and its oxbows.

Gobio volgensis Vasil’eva, Mendel, Vasil’ev, Lusk & Lusková, 2008, Volga Gudgeon.

Gobio volgensis — Mendel et al. 2008: 1073.

Gobio gobio — Reshetnikov et al. 2003a: 250.

Material examined. Table 1.

Presence of two pairs of maxillary barbels, naked thorax between pectoral fins, and by the speckled dorsal and caudal fins. This species was recently recognized as valid, formerly considered junior synonym of G. gobio ( Mendel et al. 2008) , and inhabits rivers, ponds, and water reservoirs. In many shallow rivers, this species together Barbatula barbatula reach the upper streams. The share in catches decreases according to the increase in the river size. This species was rather common for rivers, accounting for over half of the cases in all types of rivers, and was rarely found and not abundant in landlocked oxbows.