The round goby is a euryhaline bottom-dwelling species of fish of the family Gobiidae. It is native to Central Eurasia, including the Black Sea and the Caspian Sea. Round gobies have established large non-native populations in the Baltic Sea, several major Eurasian rivers, and the North American Great Lakes.
The monkey goby is a species of goby native to the basins of the Black Sea and the Sea of Azov.
The racer goby is a species of goby native to fresh, sometimes brackish, waters, of the Black Sea basin. It is a Ponto-Caspian relict species. The species is placed a monotypic genus, Babka, which was once considered a subgenus of genus Neogobius, but was then elevated to genus-status based on the molecular analysis.
Ponticola kessleri, the bighead goby or Kessler's goby, is a species of goby native to Eurasia. The bighead goby is a Ponto-Caspian relict species. It inhabits the fresh and oligohaline waters, with mineralisation from 0-0.5‰ up to 1.5-3.0‰.
The western tubenose goby is a species of goby native to fresh waters of the Black Sea and Aegean Sea basins. It has recently spread as an invasive species to Central and Western Europe and to North America. Previously Proterorhinus semilunaris was considered as a junior synonym of Proterorhinus marmoratus, but was confirmed as a distinct species based on molecular analysis.
The mushroom goby is a species of goby native to the Black Sea where it can be found along the coasts from Bulgaria to the Crimea. Mostly a species of marine and brackish waters, it is known to enter fresh waters in the delta of the Danube River. This species prefers inshore waters with rocks or fallen trees. This species can reach a length of 20 centimetres (7.9 in) TL.
The tadpole-gobies (Benthophilus), also called pugolovkas, are a genus of Ponto-Caspian fishes in the family Gobiidae.
The stellate tadpole-goby is a species of gobiid fish native to the basin of the Sea of Azov where it occurs in the Gulf of Taganrog and limans of the eastern coast. It also lives in the lower Don River up to the Tsimlyansk Reservoir. It occurs in fresh and brackish waters of depths greater than 3 metres (9.8 ft), preferring shallow coastal lagoons and lowland rivers. Males can reach a length of 13.5 centimetres (5.3 in) TL while females only reach 11 centimetres (4.3 in) TL.
The Don tadpole-goby is a species of goby widespread in the basin of the Sea of Azov, specifically in the lower Don River and Tsimlyansk Reservoir. This species is found in rivers, reservoirs and river mouths, but is not known to enter seas. It is introduced and invasive upstream the Volga River, e.g. the Kuibyshev Reservoir. This fish can reach a length of 6.6 centimetres (2.6 in) SL. Life span is about one year.
The Azov tadpole goby is a species of goby native to the basin of the Sea of Azov, specifically in the near-estuary zone of the Kuban River, to west until Ukrainian part of the Taganrog Bay and the Strait of Kerch, in the Mius estuary, Yeya estuary, and Akhtanizovskii Liman. This species is only found on silty estuarine bottoms. It can reach a length of 8.4 centimetres (3.3 in) TL.
The Caspian tadpole goby is a species of goby which is widespread in the basin of the Caspian Sea, specifically in the near-estuary zone of the rivers and in small bays. It is a common species in the Volga River delta near Astrakhan, occurred in the deltas of rivers Terek, Ural, Samur. During the warmer months, this species prefers to live at depths of from .5 to 10 metres, moving in the colder months to depths of 20 to 25 metres. It can reach a length of 11.6 centimetres (4.6 in) TL.
The granular pugolovka is a species of gobiid fish widespread in the Caspian Sea. It is a small fish, with a length up to 5.6 centimetres (2.2 in) TL. It was listed as Least Concern by the IUCN in 2008: there are no known major threats. Granular pugolovkas are very abundant in their habitat due to their size and lack of natural predators. The common name 'pugolovka' is a Ukrainian word for tadpole.
Caspiosoma caspium is a species of Ponto-Caspian goby native to the deltas of rivers inflows to the north-western Black Sea: Dnieper up to Berislav, also in the Dnieper-Bug Estuary and Berezan Estuary, Danube, Dniester with the estuary, Cuciurgan Reservoir. Found in the delta of the Don River, Volga, central and northern parts of the Caspian Sea and rivers flowing into the Sea of Azov. It can be found at depths of from 2 to 8 metres. This species can reach a length of 4.5 centimetres (1.8 in) TL. It is currently the only known member of its genus.
The small-spine tadpole-goby is a species of goby, a small fish native to the eastern coasts of the Caspian Sea and the lower reaches of the Volga River up to Volgograd. In the sea it is recorded from the Cape Peschany to the Çeleken Peninsula and Ogurja Ada Island in the south. It is abundant the Volga River delta. This species can be found at depths down to 50 metres (160 ft) although the adults generally are not found deeper than 11 metres (36 ft). This species can reach a length of 6.6 centimetres (2.6 in) TL. The specific name honours the Azerbaijani ichthyologist A. A. Mahmudbekov, studied the fish of the Caspian Sea for much of his life.
Benthophilus pinchuki, Pinchuk's pugolovka, is a species of gobiid fish found along the eastern and western coasts of the Caspian Sea, but absent on the middle part. This species has been recorded along the western coast from the Absheron to Iran, and along the eastern coast near the Cape Bely Bugor, Turkmenistan.
The Caspian stellate tadpole-goby, also known as the starry goby, is a species of gobiid fish endemic to the Caspian Sea basin. It is widespread along all coasts of the Caspian Sea with exception of the central-eastern, and in the lowest part of the Volga River. In the southern part of the basin, it is mentioned near the Ogurja Ada, in the Gorgansky Bay, and in the Sefīd-Rūd River. This species can reach a length of 10 centimetres (3.9 in) SL.
Benthophilus svetovidovi is a species of goby native to the eastern coasts of the Caspian Sea: near the capes Sagandyk, Melovyi, Peschany, Karasyngyr, off Türkmenbaşy, probably near Ogurja Ada.
Benthophilus ragimovi is a deepwater species of gobiid fish found along the western coasts of the Caspian Sea, from the Chechen Island to Astara, Azerbaijan. It is one of the numerous species of benthophiline gobies endemic to the Ponto-Caspian region.
Benthophilus leptocephalus is a deepwater species of goby widespread along the central Caspian Sea from the mouth of the Samur River to Türkmenbaşy and Hasan-Kuli. This species can reach a length of 5.4 centimetres (2.1 in) TL.
