Amphibia · Anura
Agalychnis callidryasCope, 1862
Red-eyed Treefrog
Photograph by Red-eyed Tree Frog (Agalychnis callidryas) 3.jpg: Geoff…, CC BY, via Wikimedia Commons
_1.png){kind=link}
A nocturnal frog reaching 77 mm snout to vent.
Amphibia › Anura › Phyllomedusidae › Agalychnis
- Grows to
- 77.2mm
- greatest recorded
- Active
- Nocturnal
- Lives up to
- 7.95years
- Lives
- Aquatic, arboreal, terrestrial
Longer than 72% of all species in Phyllomedusidae 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 31 to 135 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
19 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
- Least Concern
- Population trend
- Decreasing
as reported by the IUCN Red List
The animal itself
- Longest recorded life
- 7.95years
Ricklefs, 2010, Proc. Natl. Acad. Sci. USA, 107:10314-10319
Size
- Length snout to vent · greatest recorded
- 77.2mm3 in
- Body mass · greatestmeasured
- 12g0.42 oz
snout-to-vent length, as this source reports for Anura
maximum adult body mass as recorded in the source
How it lives
- Eats arthropods
- Unknown
- Eats vertebrates
- Unknown
- Eats plant matter
- Unknown
- Active
- Nocturnal
- Where it lives
- Aquatic, arboreal, terrestrial
a blank flag in this source means unrecorded, not absent
Breeding
- Reproduction
- Oviparous
- How the young develop
- Through a larval stage
- Average clutch
- 151.8
- Eggs or young per clutch
- 19–265eggs
- Clutches in a year
- 1per year
- Hatchling length
- 3.2mm
an average — Briggs, 2013, Herpetol. J., 23:131-138
Naming and history
- Described by
- Cope
- Moved to another genus · since it was first described
- Yes
- Described in
- 1862
Keeping one
No enclosure size is given here
Swiss law sets amphibian enclosure sizes family by family, and this family is not among the ones its table names. No figure is given rather than one borrowed from a different kind of animal.
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.
Feeding
2kJ per day
Worked out for an animal of 12 g, the heaviest recorded for Red-eyed Treefrog — so it is the top of the range, not a figure for a particular animal. Weigh yours and the number will be lower.
An upper estimate, not a feeding target, and not veterinary advice. The equation covers only what an animal burns staying alive, so a growing, gravid or recovering animal needs more — and it was measured on wild animals, which move far more than one in an enclosure. Body condition and a vet who knows the species are what a feeding decision should rest on. Where this comes from.
Morphs
0 with peer-reviewed genetics behind them, 1 resting on breeder consensus. Most references present both with the same confidence.
- Locality colourbreeder consensus
How blue or purple the flanks are, how orange the feet, and how much barring shows. This follows the population an animal descends from rather than a gene.
Worth knowing. A resting red-eyed tree frog closes its eyes, tucks its limbs under and goes plain green — the red eyes and blue flanks are what it shows when startled or active. An animal bought on a photograph spends most of the day looking like a green leaf, which is what the colouring is for.
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 · a typical adult
- — Body mass · adult female, mean
- — Body mass at hatching
- — Preferred body temperature · chosen in a laboratory gradient
- — Body temperature when active · measured in the wild
- — Diet
- — How it hunts
- — Gestation or incubation
- — Mean clutch · smallest reported
- — Mean clutch · largest reported
- — Clutches a year · fewest
- — Clutches a year · most
- — First breeds from · youngest recorded
- — First breeds by · oldest 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 Phyllomedusidae
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). Agalychnis callidryas. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/agalychnis-callidryas
@misc{agalychnis_callidryas_2026,
title = {Agalychnis callidryas},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/agalychnis-callidryas}
}Sources
- Oliveira, B.F. et al. (2017). AmphiBIO, a global database for amphibian ecological traits. Scientific Data 4:170123. Used under CC BY 4.0.
- 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.