Haswell's frog (''Paracrinia haswelli'') is a small ground

frog A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...

found around

coast A coast (coastline, shoreline, seashore) is the land next to the sea or the line that forms the boundary between the land and the ocean or a lake. Coasts are influenced by the topography of the surrounding landscape and by aquatic erosion, su ...

al swamps in eastern

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 ...

from around

Port Macquarie, New South Wales Port Macquarie, sometimes shortened to Port Mac and commonly locally nicknamed Port, is a coastal city on the Mid North Coast of New South Wales, Australia, north of Sydney, and south of Brisbane, on the Tasman Sea coast at the mouth of the ...

to the

Mornington Peninsula The Mornington Peninsula is a peninsula located in the south of Greater Melbourne, Victoria (state), Victoria, Australia. It is surrounded by Port Phillip to the west, Western Port to the east and Bass Strait to the south, and is connected to ...

Victoria Victoria most commonly refers to: * Queen Victoria (1819–1901), Queen of the United Kingdom and Empress of India * Victoria (state), a state of Australia * Victoria, British Columbia, Canada, a provincial capital * Victoria, Seychelles, the capi ...

. It is the only member of the

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

''Paracrinia''.

Description

This species of frog reaches in length. This frog varies from light grey-brown, pale brown to red-brown above with some darker flecks. There is normally a faint mid-dorsal stripe running down the back. There is also a dark band running from the back of the eye to the shoulder. The top half of the

iris Iris most often refers to: *Iris (anatomy), part of the eye * Iris (color), an ambiguous color term *Iris (mythology), a Greek goddess * ''Iris'' (plant), a genus of flowering plants * Iris (given name), a feminine given name, and a list of peopl ...

is silver. The thighs are red, which gives it another name, the red-groined froglet. The ventral surface of this species is light brown with white patches.

Ecology and behaviour

This species is associated with coastal

swamp A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in ...

s, particularly in

wallum Wallum, also known as the Wallum Sand Heaths or Wallum Country, is an Australian ecosystem of coastal south-eastern Queensland, extending into north-eastern New South Wales. It is characterised by flora-rich shrubland and heathland on deep, ...

swampland and heathland. This species also inhabits

dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aqua ...

pond A pond is a small, still, land-based body of water formed by pooling inside a depression (geology), depression, either naturally or artificiality, artificially. A pond is smaller than a lake and there are no official criteria distinguishing ...

s, and ditches in

sclerophyll forest Sclerophyll is a type of vegetation that is adapted to long periods of dryness and heat. The plants feature hard leaves, short internodes (the distance between leaves along the stem) and leaf orientation which is parallel or oblique to direct ...

and

woodland A woodland () is, in the broad sense, land covered with woody plants (trees and shrubs), or in a narrow sense, synonymous with wood (or in the U.S., the '' plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunli ...

. Males make an "annk" call from water or on land during most of the year, but most often after rain in autumn and winter.

Egg An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the ...

s are laid in water attached to sticks and leaves. The

tadpole A tadpole or polliwog (also spelled pollywog) is the Larva, larval stage in the biological life cycle of an amphibian. Most tadpoles are fully Aquatic animal, aquatic, though some species of amphibians have tadpoles that are terrestrial animal, ...

of this species has very deeply arched tail fins.

Metamorphosis Metamorphosis is a biological process by which an animal physically develops including birth transformation or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and different ...

occurs during spring and autumn after a tadpole life span of about 100 days. Metamorph frogs measure and resemble the adult, however, the thigh red colouration is not yet fully developed.

References

External links

*
Frogs Australia Network
frog call available here.
Frogs of Australia
*Anstis, M. 2002. Tadpoles of South-eastern Australia. Reed New Holland: Sydney. *Robinson, M. 2002. A Field Guide to Frogs of Australia. Australian Museum/Reed New Holland: Sydney. {{Taxonbar , from=Q2217463 Amphibians of New South Wales Amphibians of Victoria (state) Myobatrachidae Amphibians described in 1894 Frogs of Australia Taxa named by Joseph James Fletcher