''Marilyna darwinii'', known as the Darwin toadfish, is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of pufferfish in the family

Tetraodontidae Tetraodontidae is a family of marine and freshwater fish in the order Tetraodontiformes. The family includes many familiar species variously called pufferfish, puffers, balloonfish, blowfish, blowers, blowies, bubblefish, globefish, swellfish, ...

. It is native to the Western Pacific, where it is known from

Papua New Guinea Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean n ...

and reported from

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

. It inhabits tropical marine and brackish waters and reaches 9.5 cm (3.7 inches) SL.

References

* Darwin Toadfish, Marilyna darwinii (Castelnau 1873) @ fishesofaustralia.net.au
/small> Tetraodontidae Fish of Papua New Guinea Fish described in 1873 {{Tetraodontiformes-stub