Amphibia · Anura
Osornophryne cofanorumMueses-Cisneros, Yánez-Muñoz, Guayasamin, 2010
Cofán Toadlet
No photograph of this species exists under a license anyone may reuse. It gets the same page regardless.
A nocturnal toad reaching 34 mm snout to vent.
Also called Cofan Plump Toad.
Amphibia › Anura › Bufonidae › Osornophryne
- Grows to
- 34.4mm
- greatest recorded
- Active
- Nocturnal
- Red List
- Critically Endangered
Longer than only 26% of all toads anyone has measured.
The bar is the rank itself: its length is the share of the family this animal exceeds. The chart below is the family’s real spread, on a logarithmic scale because body length here runs from 13 to 250 mm. The solid rule is this animal. Every bar is a count of real species, and nothing on this figure is estimated.
What is known
7 sourced facts, each taken from a named scientific dataset. How to read these.
Cited from a dataset unless a row is marked otherwise.
Standing in the world
- Conservation status
- Critically Endangered
- Population trend
- Decreasing
as reported by the IUCN Red List
Size
- Length snout to vent · greatest recorded
- 34.4mm1.25 in
snout-to-vent length — Mueses-Cisneros, Yánez-Muñoz, and Guayasamin, 2010, Pap. Avulsos Zool., 50:269-279
How it lives
- Active
- Nocturnal
Naming and history
- Described by
- Mueses-Cisneros, Yánez-Muñoz, Guayasamin
- Moved to another genus · since it was first described
- No
- Described in
- 2010
Keeping one
Cofán Toadlet is assessed as Critically Endangered on the IUCN Red List. Species at risk in the wild are often covered by CITES and by national law, which decide what may be bought, sold, moved across a border or kept at all — and captive-bred and wild-caught animals are usually treated differently. Check the rules where you are before acquiring one. Nothing below is a judgement about keeping this species; it is what a published welfare standard says about space, and what the animal itself was measured doing.
- Land
- 17 × 17cm
- Water, at least 2 cm deep
- 7 × 3cm
Minimum, and for two animals — which is how the standard states it. Bigger is always better. Around 14 cm tall on average.
The standard gives 5 × 5 body lengths of land and 2 × 1 of water, for two animals.
For each further animal the standard asks for another 7 × 7 cm of land and 3 × 3 cm of water.
Swiss Tierschutzverordnung (TSchV), SR 455.1, Anhang 2, Tabelle 6 — legally binding minimum enclosure sizes for amphibians, given as multiples of total body length and stated for two animals.
From this animal’s own snout-vent length, which for a frog is its body length of 1.25 in (34.4 mm) — how this is worked out.
Cofán Toadlet
What nobody knows
These are not gaps in our research. No scientific dataset records them for this species — and saying so is information you cannot get from a reference that simply leaves a field out.
- — Still living
- — Length snout to vent · adult female mean
- — Length snout to vent · adult male mean
- — Length snout to vent · adult mean
- — Length nose to tail · greatest recorded
- — Female length · mean, nose to tail
- — Length nose to tail · adult male mean
- — Length nose to tail · adult mean
- — Largest female · snout to vent
- — Largest male · snout to vent
- — Largest female · shell length
- — Largest male · shell length
- — Hatchling length · snout to vent
- — Hatchling length · nose to tail
- — Largest juvenile · snout to vent
- — Largest juvenile · shell length
- — Egg length
- — Egg width
- — Body mass · greatest
- — Body mass · a typical adult
- — Body mass · adult female, mean
- — Body mass at hatching
- — Longest recorded life
- — Preferred body temperature · chosen in a laboratory gradient
- — Body temperature when active · measured in the wild
- — Diet
- — Eats arthropods
- — Eats vertebrates
- — Eats plant matter
- — How it hunts
- — Where it lives
- — Reproduction
- — How the young develop
- — Gestation or incubation
- — Average clutch
- — Smallest clutch recorded
- — Largest clutch recorded
- — Mean clutch · smallest reported
- — Mean clutch · largest reported
- — Clutches in a year
- — Clutches a year · fewest
- — Clutches a year · most
- — First breeds from · youngest recorded
- — First breeds by · oldest recorded
- — Hatchling length · smallest recorded
- — Hatchling length · largest recorded
- — Age at first breeding · female
- — Mature from · youngest recorded
- — Mature by · oldest recorded
- — Size at maturity · smallest recorded
- — Size at maturity · largest recorded
- — Venomous
- — Fangs
- — Body temp in the wild · lowest mean recorded
- — Body temp in the wild · highest mean recorded
- — Limbs
- — Colour on the back
- — Pattern on the back
- — Pupil
- — Sex decided by
- — Status assessed · the year the Red List last looked
- — Red List criteria
- — Region
- — Biome
- — Active season · shortest recorded
- — Active season · longest recorded
- — Density · lowest recorded
- — Density · highest recorded
- — Home range · largest recorded
- — Suborder
- — Infraorder
- — Subspecies
- — Type locality
- — Habitat
- — Active in
- — Mainland or island
- — Lowest it lives · above sea level
- — Highest it lives · above sea level
- — Range size
Others in Bufonidae
Take this data
Everything on this page is available as data under CC BY 4.0 — use it freely, credit it, no permission needed.
This species as JSON · the whole dataset
Cite this page
The Reptile & Amphibian Encyclopedia (2026). Osornophryne cofanorum. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/osornophryne-cofanorum
@misc{osornophryne_cofanorum_2026,
title = {Osornophryne cofanorum},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/osornophryne-cofanorum}
}Sources
- Moura, M. R. et al. TetrapodTraits: a database of 33,281 tetrapod species. Used under CC BY 4.0. Observed values only; this encyclopedia does not publish its imputed predictions.
- GBIF Secretariat. GBIF Backbone Taxonomy. Used under CC BY 4.0. Common names aggregated from constituent checklists.
- Catalogue of Life (dataset 3LR), used under CC BY.