Ponticola bathybius
   HOME

TheInfoList



OR:

''Neogobius bathybius'' is a
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
goby Goby is a common name for many species of small to medium sized ray-finned fish, normally with large heads and tapered bodies, which are found in marine, brackish and freshwater environments. Traditionally most of the species called gobies have b ...
endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...
to the
Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia ...
, where it occurs in depths down to . It is strictly confined to the brackish-water basin and does not enter fresh waters. It can grow up to a length of TL. The species was transferred to the
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
'' Ponticola'' from '' Neogobius'' on the basis of relationship revealed in molecular investigations.Neilson M.E., Stepien C.A. (2009) Escape from the Ponto-Caspian: Evolution and biogeography of an endemic goby species flock ( Benthophilinae:
Gobiidae Gobiidae or gobies is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising more than 2,000 species in more than 200 genera. Most of gobiid fish are relatively small, typically less than in length, and the ...
:
Teleostei Teleostei (; Greek ''teleios'' "complete" + ''osteon'' "bone"), members of which are known as teleosts ), is, by far, the largest infraclass in the class Actinopterygii, the ray-finned fishes, containing 96% of all extant species of fish. Te ...
). Molecular Phylogenetics and Evolution, 52(1): 84-10

/ref> On the other hand, recent molecular studies have proven that this species belongs entirely to the genus '' Neogobius''.


References

Neogobius Fish of the Caspian Sea Fish of Western Asia Taxa named by Karl Kessler Fish described in 1877 Endemic fauna of the Caspian Sea {{Gobiidae-stub