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Anura · MantellidaeEntry 8,911 of 21,572
Sainte Marie Madagascar Frog, Guibemantis bicalcaratus

Amphibia · Anura

Guibemantis bicalcaratusBoettger, 1913

Sainte Marie Madagascar Frog

Photograph by Scott Loarie, CC0, via Wikimedia Commons

A tree-dwelling, dawn-and-dusk frog reaching 29 mm snout to vent.

AmphibiaAnuraMantellidaeGuibemantis

Grows to
29mm
greatest recorded
Active
Crepuscular
Lives up to
1years
Lives
Arboreal
Body length across Mantellidae

Longer than only 27% of all species in Mantellidae anyone has measured.

27% of 202 species are smaller73% larger
15.9 mmthe whole family, smallest to largest120 mm

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 15.9 to 120 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

23 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
1years

Size

Length snout to vent · greatest recorded
29mm1.25 in

snout-to-vent length, as this source reports for Anura

Length snout to vent · adult female mean
23.4mm0.9 in

mean adult female snout-to-vent length

Length snout to vent · adult male mean
21.2mm0.8 in

mean adult male snout-to-vent length

Body mass · greatestmeasured
1.2g0.04 oz

maximum adult body mass as recorded in the source

How it lives

Eats arthropods
Unknown

a blank flag in this source means unrecorded, not absent

Eats vertebrates
Unknown
Eats plant matter
Unknown
Active
Crepuscular
Where it lives
Arboreal
Active in
Wet and warm

Breeding

Reproduction
Oviparous
How the young develop
Through a larval stage
Average clutch
24.49

midpoint of the reported range — Pincheira-Donoso, Harvey, Cotter, Stark, Meiri, and Hodgson, 2021, Glob. Ecol. Biogeogr., 30:1299-1310

Clutches in a year
1per year
Hatchling length
1.9mm
Mature at
1years
Size at maturity
16mm

Naming and history

Described by
Boettger
Moved to another genus · since it was first described
Yes
Described in
1913

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

0kJ per day

Worked out for an animal of 1 g, the heaviest recorded for Sainte Marie Madagascar Frog — 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.

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 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
  • Smallest clutch recorded
  • Largest clutch recorded
  • 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
  • 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
  • Mainland or island
  • Lowest it lives · above sea level
  • Highest it lives · above sea level
  • Range size

Others in Mantellidae

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). Guibemantis bicalcaratus. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/guibemantis-bicalcaratus

@misc{guibemantis_bicalcaratus_2026,
  title  = {Guibemantis bicalcaratus},
  author = {{The Reptile & Amphibian Encyclopedia}},
  year   = {2026},
  url    = {https://www.allanglescreatures.com/species/guibemantis-bicalcaratus}
}

Sources

  1. Oliveira, B.F. et al. (2017). AmphiBIO, a global database for amphibian ecological traits. Scientific Data 4:170123. Used under CC BY 4.0.
  2. 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.
  3. GBIF Secretariat. GBIF Backbone Taxonomy. Used under CC BY 4.0. Common names aggregated from constituent checklists.
  4. Catalogue of Life (dataset 3LR), used under CC BY.
  5. Huang, N. et al. (2023). Amphibian traits database: a global database on morphological traits of amphibians. Global Ecology and Biogeography 32, 633-641. Used under CC BY 4.0.