''Padogobius nigricans'', the Arno goby, is a species 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 ...

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...

. It occurs in streams, staying to well-vegetated edge areas. Males of this species reach a length of TL while the females only reach TL.

References

Padogobius Freshwater fish of Europe Endemic fauna of Italy Fish described in 1867 Taxonomy articles created by Polbot Taxobox binomials not recognized by IUCN {{Gobiidae-stub