''Arius acutirostris'' is a species of

catfish Catfish (or catfishes; order (biology), order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are common name, named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, though not ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Ariidae The Ariidae or ariid catfish are a family (taxonomy), family of catfish that mainly live in Marine (ocean), marine waters with many freshwater and brackish water species. They are found worldwide in tropical to warm temperate zones. The family i ...

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

Salween River The Salween is a Southeast Asian river, about long, flowing from the Tibetan Plateau south into the Andaman Sea. The Salween flows primarily within southwest China and eastern Myanmar, with a short section forming the border of Myanmar and Tha ...

basins in

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

and from the Kraburi River estuary in

Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...

. It grows to in

length Length is a measure of distance. In the International System of Quantities, length is a quantity with Dimension (physical quantity), dimension distance. In most systems of measurement a Base unit (measurement), base unit for length is chosen, ...

. ''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