The toothless catfish (''Anodontiglanis dahli'') 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 ...

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, ...

(

order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...

Siluriformes) of 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 ...

Plotosidae. This fish originates from northern

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

, including

Fitzroy Fitzroy or FitzRoy may refer to: People As a given name *Several members of the Somerset family (Dukes of Beaufort) have this as a middle-name: **FitzRoy Somerset, 1st Baron Raglan (1788–1855) ** Henry Charles FitzRoy Somerset, 8th Duke of Beau ...

Daly Daly or DALY may refer to: Places Australia * County of Daly, a cadastral division in South Australia * Daly River, Northern Territory, a locality * Electoral division of Daly, an electorate in the Northern Territory * Daly, Northern Territory, ...

, East Alligator,

Roper Roper is a craftsman who makes ropes; a ropemaker. It may also refer to: Places *Roper, North Carolina, USA *Roper River, Northern Territory, Australia People * Roper (surname) Other *'' Roper v. Simmons'', a decision of the United States Sup ...

Mitchell Mitchell may refer to: People *Mitchell (surname) *Mitchell (given name) Places Australia * Mitchell, Australian Capital Territory, a light-industrial estate * Mitchell, New South Wales, a suburb of Bathurst * Mitchell, Northern Territo ...

, and Archer Rivers, in lentic and

lotic River ecosystems are flowing waters that drain the landscape, and include the Biotic component, biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions of its man ...

freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...

habitats. It grows up to about 40.0 centimetres (15.7 in) TL. The toothless catfish lives in clear, flowing waters. It has been reported to be solitary, but it also often forms aggregations around log snags or in deeper rock pools. It also occurs in sandy bottoms around the cover of woody debris and in flooded lagoons. This fish feeds on aquatic

insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs ...

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...

s, prawns, and bottom detritus by thrusting its snout into the sandy bottom. Nothing is specific is known about the breeding biology, but it probably spawns early in the wet season. This fish most definitely does have teeth (in its pharynx).

References

Plotosidae Freshwater fish of Australia toothless catfish {{catfish-stub