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Lesser Bornean Narrow-mouthed Frog

Microhyla borneensis


A small frog with long hind limbs. Eardrum is mot visible with slightly pointed snout projecting beyound the mouth.Smooth skin with colouration of brown with dark brown mark down the centre of the back.Chest and belly faintly speckled with patches of tiny dark brown or black dots.


Lowland forest and breeds in Nephentes ampullaria.


Microhyla nepenthicola is a junior synonym to this species. Endemic to Borneo.

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triggsturner 2 years ago

Wonderful spotting and well deserved first place. Well done Bob.

Tukup 2 years ago

What a catch Bob! Congratulations!

bob5 2 years ago

Thank you LaurenZarate, and Sergio Monteiro.

Sergio Monteiro
Sergio Monteiro 2 years ago


LaurenZarate 2 years ago

Congratulations Bob! Amazing capture!

bob5 2 years ago

Thank you all. Greatly honoured by this.

Brian38 2 years ago

Congratulations Bob! Great spotting.

Mark Ridgway
Mark Ridgway 2 years ago

Amazing Bob. Congrats.

DanielePralong 2 years ago

Congratulations Bob, this spotting came first in our 2018 Best Wildlife Photo Competition, Amphibians category!



Jim Nelson
Jim Nelson 3 years ago

Nice spotting Bob, and well done with the photography!

Excellent spotting!

Michael Strydom
Michael Strydom 3 years ago

Great SOTW... Awsome find!

triggsturner 3 years ago


Mark Ridgway
Mark Ridgway 3 years ago


DanielePralong 3 years ago

Congratulations bob5, this tiny frog has been voted Spotting of the Week! Your complete notes with all fields filled in, together with capturing a scene that situates this frog in its unique habitat won you the vote. A whole story in one shot. Once you start learning about what goes on in pitcher plants you can't stop! As Mark said, well done!

"Our Spotting of the Week is one of dozens of species which call the pitcher plant Nepenthes ampullaria home! The tiny Matang Narrow-mouthed Frog (Microhyla borneensis) is endemic to the Matang Range in Sarawak on the island of Borneo, and spends most of its life cycle in the traps of Nepenthes ampullaria. This frog shares its pitcher habitat with fly and midge larvae, mites, ants, bacterial communities and a species of crab spider, Misumenops nepenthicola.
To learn more about the different inhabitants of Nepenthes and their relationship to the plant: "



Mark Ridgway
Mark Ridgway 3 years ago

Well done bob5.

DanielePralong 3 years ago

Your spotting has been nominated for the Spotting of the Week. The winner will be chosen by the Project Noah Rangers based on a combination of factors including: uniqueness of the shot, status of the organism (for example, rare or endangered), quality of the information provided in the habitat and description sections. There is a subjective element, of course; the spotting with the highest number of Ranger votes is chosen. Congratulations on being nominated bob!

Spotted by

Sarawak, Malaysia

Spotted on Jul 8, 2018
Submitted on Jul 9, 2018

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