---
title: "File-eared Tree Frog"
description: "Polypedates otilophus — Amphibians. Polypedates otilophus (also known as the file-eared tree frog, Borneo eared frog, or bony-headed flying frog) is a species of frog in the family Rhacophoridae."
canonical: https://animalchecklist.com/animal/file-eared-tree-frog
last_updated: 2026-09-20
---

# File-eared Tree Frog

> Polypedates otilophus — Amphibians. Polypedates otilophus (also known as the file-eared tree frog, Borneo eared frog, or bony-headed flying frog) is a species of frog in the family Rhacophoridae.

- Scientific name: *Polypedates otilophus*
- Category: `amphibians` (Amphibians)
- Habitats: `forest` (Forest), `jungle` (Jungle)
- iNaturalist observations: 1129
- Wikidata: [Q2701156](https://www.wikidata.org/wiki/Q2701156)
- iNaturalist taxon: [26597](https://www.inaturalist.org/taxa/26597)

## Names

- en: File-eared Tree Frog
- de: Hornlappen-Ruderfrosch

## Countries with the most observations

MY (946), ID (101), BN (10)

## Summary

Polypedates otilophus (also known as the file-eared tree frog, Borneo eared frog, or bony-headed flying frog) is a species of frog in the family Rhacophoridae. It is endemic to Borneo where it is widespread and found in Brunei, Indonesia, and Malaysia, typically in the lowlands but sometimes as high as 1,100 m (3,600 ft) above sea level. This species has prominent, sharp ridges behind the eye, above the ear, referred to in its names.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Polypedates_otilophus

## Photo

![File-eared Tree Frog](https://animalchecklist.com/img/animals/file-eared-tree-frog/medium.jpg)

Photo: Marius Burger · CC0 · inaturalist — https://www.inaturalist.org/observations/113213925

## Machine access

`GET https://animalchecklist.com/api/v1/animals/file-eared-tree-frog?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).