Ponticola bathybius
Neogobius bathybius from the Bandar-e Anzali Shore, Caspian Sea, Iran
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gobiiformes
Family: Gobiidae
Genus: Ponticola
Species:
P. bathybius
Binomial name
Ponticola bathybius
(Kessler, 1877)
Synonyms
  • Gobius bathybius Kessler, 1877
  • Neogobius bathybius (Kessler, 1877)
  • Chasar bathybius (Kessler, 1877)

Neogobius bathybius is a species of goby endemic to the Caspian Sea, where it occurs in depths down to 200 metres (660 ft). It is strictly confined to the brackish-water basin and does not enter fresh waters. It can grow up to a length of 25 centimetres (9.8 in) TL.[1]

The species was transferred to the genus Ponticola from Neogobius on the basis of relationship revealed in molecular investigations.[2] On the other hand, recent molecular studies have proven that this species belongs entirely to the genus Neogobius.[3][4]

References

  1. ^ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Neogobius bathybius" in FishBase. June 2013 version.
  2. ^ Neilson M.E., Stepien C.A. (2009) Escape from the Ponto-Caspian: Evolution and biogeography of an endemic goby species flock (Benthophilinae: Gobiidae: Teleostei). Molecular Phylogenetics and Evolution, 52(1): 84-102.[1]
  3. ^ Zarei, Fatah; Esmaeili, Hamid Reza; Schliewen, Ulrich K; Abbasi, Keyvan; Sayyadzadeh, Golnaz (2021). "Mitochondrial phylogeny, diversity, and ichthyogeography of gobies (Teleostei: Gobiidae) from the oldest and deepest Caspian sub-basin and tracing source and spread pattern of an introduced Rhinogobius species at the tricontinental crossroad". Hydrobiologia. 848 (6): 1267–1293. doi:10.1007/s10750-021-04521-0. S2CID 233900590. Retrieved 22 February 2021.
  4. ^ Tajbakhsh, Fatemeh; Rajabi-Maham, Hassan; Abdoli, Asghar; Stepien, Carol A; Kiabi, Bahram H (2022). "DNA Sequence Support for Reclassification of the Endemic Southern Caspian Sea Deepwater Goby as Neogobius bathybius (Formerly Ponticola; Perciformes: Gobiidae) and Recent Population Expansion of a Continuous Population". Ichthyology & Herpetology. 110 (1): 13–21. doi:10.1643/i2020015. S2CID 245916452. Retrieved 20 January 2022.


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