''Arius acutirostris'' is a species of

catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Ariidae The Ariidae or ariid catfish are a family of catfish that mainly live in marine waters with many freshwater and brackish water species. They are found worldwide in tropical to warm temperate zones. The family includes about 143 species. Taxonomy ...

. It is a fresh- and brackish-water species that inhabits lower reaches of tidal rivers and estuaries. It is known from the

Irrawaddy Irrawaddy may refer to: *Irrawaddy River, the main river of Burma *Irrawaddy Delta, a rice growing region of the country *Ayeyarwady Region, an administrative division of Burma *''The Irrawaddy'', a Burmese news publication based in Chiang Mai, Tha ...

and

Salween River , ''Mae Nam Salawin'' ( , name_etymology = , image = Sweet_View_of_Salween_River_in_Tang_Yan_Township,_Shan_State,_Myanmar.jpg , image_size = , image_caption = Salween River in Shan State, Myanmar , map ...

basins in

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

and from the

Kraburi River The Kraburi River ( th, แม่น้ำกระบุรี, , ; my, မြစ်ကြီးနား, BGN/PCGN: myitkyina, ''Kyan River''), also Kra ( th, กระ) or Pak Chan River ( th, แม่น้ำปากจั่น) is the ...

estuary in

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

. It grows to in

length Length is a measure of distance. In the International System of Quantities, length is a quantity with dimension distance. In most systems of measurement a base unit for length is chosen, from which all other units are derived. In the Interna ...

. ''A. acutirostris'' can be locally common and is caught in local fisheries.

References

acutirostris Fish of Myanmar Fish of Thailand Taxa named by Francis Day Fish described in 1877 {{ariidae-stub