''Glossamia aprion'' is a species of freshwater

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

from 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 ...

Apogonidae Cardinalfishes are a family, Apogonidae, of ray-finned fishes found in the Atlantic, Indian, and Pacific Oceans; they are chiefly marine, but some species are found in brackish water and a few (notably '' Glossamia'') are found in fresh water. ...

, the

cardinalfish Cardinalfishes are a family, Apogonidae, of ray-finned fishes found in the Atlantic, Indian, and Pacific Oceans; they are chiefly marine, but some species are found in brackish water and a few (notably '' Glossamia'') are found in fresh water. A ...

es, from northern Australia and New Guinea. In Australia, it is commonly known as the mouth almighty.

Description

''G. aprion'' has a creamy-brown background colour and six to eight irregularly shaped, broken markings which are similar to bars; these are darker olive-brown in colour and they reach the ventral side. They also have many irregular, darker brown spots and blotches, which vary in size, and a dark bar which runs from the eye to gills. The first

dorsal fin A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found ...

is sooty in colour, with the outer half much darker than the inner part, as are the

pelvic The pelvis (: pelves or pelvises) is the lower part of an anatomical trunk, between the abdomen and the thighs (sometimes also called pelvic region), together with its embedded skeleton (sometimes also called bony pelvis or pelvic skeleton). ...

and the inner parts of second dorsal and

anal fin Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported o ...

s. Also, dark spots and marbling are on these fins. This species grows to a maximum

standard length Fish measurement is the measuring of individual fish and various parts of fish anatomy, their anatomies, for data used in many areas of ichthyology, including Taxonomy (biology), taxonomy and fishery biology. Overall length Standard length (SL) is ...

of , although standard lengths of are normal.

Distribution

''G. aprion'' is widespread in northern Australia, where its occurs in rivers, creeks, and lagoons from the Fitzroy River in the

West Kimberley West Kimberley is a sub region of the Kimberley region of Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern T ...

region of

Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...

to the

Burnett River The Burnett River is a river in the Wide Bay–Burnett and Central Queensland regions of Queensland, Australia. Course and features The Burnett River rises in the Burnett Range, part of the Great Dividing Range, close to Mount Gaeta and east ...

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

. It is found in similar habitats in

New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...

Habitat and ecology

''G. aprion'' is native to still or slowly flowing fresh waters, where it shelters in aquatic vegetation growing in the shallows near the edges. It is a nocturnal species which ambushes its prey, mainly small

crustacea Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are traditionally a part of the subphylum Crustacea (), a large, diverse group of mainly aquatic arthrop ...

ns, insects, and smaller fish. The female lays a relatively small number of large eggs. These are brooded by the male in his mouth, and the larvae hatch at a quite advanced stage.

References

External links

Mouth Almighty video on Youtube

Wild footage of Mouth Almighty on YouTube
{{Taxonbar, from=Q5760098 mouth almighty Freshwater fish of New Guinea Freshwater fish of Australia Taxa named by John Richardson (naturalist) mouth almighty