Hamilton's Frog


Hamilton`s Frog



The Hamilton frog is a unique endangered amphibian to New Zealand. As we have studied the Hamilton frog for quite a while. We have learned about their habitat, physical appearance etc.


Physical Appearance:

The Hamilton frog has no web feet. Its skin color is brown with black patches on their back. It is usually a hundred millimeter’s long. And its head is V shaped and twenty five millimeters long. It also has no tail and its pupils are round compared to other frogs.



The Hamilton frog can be found on Stephens Island or around the Marlborough Sounds of New Zealand. They live in confined spaces, mainly around rocks and moisture. Many people are helping to increase the living area for the Hamilton frog as future generations of this kind of frog is limited.








And its own kind


Hamilton`s frog catches all their food with their tongue which reaches out and snaps up its prey.


The Hamilton Frog below    

Life cycle:

Adaptive features / special body parts or behaviors that help it feed and survive:

Non- webbed feet    
Long tongue    
Brown with black specks on his back    

Big eyes

Other human threats:


*Black market




Another human threat is due to human impact on pests.


Conversation Measures:

People have been protecting its amphibian species since 1921. A Tuatara proof fence has been put around the habitat of the Hamilton frog. There was also a new man made rock stack was made for the Hamilton frog in 1991.


Survival chance`s: 


The chances of it surviving and sustaining it`s self is very low due to the decrease in population of the Hamilton frog and the increase of the pest`s.


Competition for food:


The Hamilton frog competes for food between the


.Northern frog`s

.South frogs

.And it`s own kind




The Hamilton frog has many predator`s as it is small and very vulnerable. Their predator`s are dog’s, cat’s, mice, rat`s, other rodents, bird`s, possum`s, ferret`s, weasel`s.


Habitat destruction:


The Hamilton frog faces many difficult problems with their habitat like deforestation, pollution, pesticides, weeds, damming river`s, river pollution and draining swamps. This is causing a lot of trouble when it comes to breeding.




Interesting facts:


*The Hamilton frog has no webbed feet.

*It is only found in Stephens Island and Marlborough sounds.

*It is named after Harold Hamilton.

*The Hamilton frog is one of four primitive species belonging to New Zealand.

*Their pupils are round not slit like other primitive frogs.


*Don`t croak.

*It needs to stay damp and if it dries it will die.




 We believe that the Hamilton frog will not survive because of the increasing amount of waste entering their habitat. Also the Hamilton frog’s numbers are limiting fast and they may need our help in the future.












Maori name: Leiopelma hamiltoni