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Squamata · SphaerodactylidaeEntry 8,765 of 21,572
Trinidad Gecko, Gonatodes humeralis

Reptilia · Squamata

Gonatodes humeralisGuichenot, 1855

Trinidad Gecko

Photograph by Philipp Hoenle, CC0, via Wikimedia Commons

A tree-dwelling, day-active, meat-eating gecko from the Neotropic region, reaching 47 mm snout to vent.

Also called South American Clawed Gecko.

Once published as Gonatodes ferrugineus — those names reach this page.

ReptiliaSquamataSphaerodactylidaeGonatodes

Grows to
47mm
greatest recorded
Eats
Carnivorous
Active
Diurnal
Lives
Arboreal
Body length across Sphaerodactylidae

Longer than 81% of all species in Sphaerodactylidae anyone has measured.

81% of 230 species are smaller19% larger
17 mmthe whole family, smallest to largest150 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 17 to 150 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

40 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

Still living
Extant
Conservation status
Least Concern
Status assessed · the year the Red List last looked
2014
Population trend
Stable

The animal itself

Limbs
Four legs
Venomous
No
Fangs
None
Preferred body temperature · chosen in a laboratory gradientmeasured
25.7°C
Body temp in the wild · mean, when active
28.4–30.3°C83–87 °F

body temperature of active animals in nature

Size

Length snout to vent · greatest recorded
47mm1.75 in

max 47 mm SVL (Feldman et al. 2016)

Length snout to vent · adult female mean
35.3mm1.5 in
Hatchling length · snout to vent
17mm0.7 in
Body mass · greatestcomputed
2.56g0.09 oz

computed from length by a family-level allometric equation, not weighed

Body mass at hatchingmeasured
0.2g0.01 oz

How it lives

Diet
Carnivorous

Invertebrates (e.g., gastropods and arthropods, Miranda and Andrade 2003) / omnivorous (Daza et al. 2009)/arthropods (de Figueiredo et al. 2020, details in de Oliveira et al. 2021b, Uchoa et al. 2022)

How it hunts
Sit and wait

e.g., Mesquita et al. 2016, Fenker et al. 2020

Active
Diurnal

Diurnal and nocturnal with artificial lighting (Dixon and Soini 1986), Diurnal (Higham et al. 2017, Moraes et al. 2016, Fenker et al. 2020, Senaris et al. 2018, de Oliveira et al. 2021b, Diaz-Florez and Alarcon-Naforo 2021, Uchoa et al. 2022)

Where it lives
Arboreal

Saxicolous and Arboreal / arboreal (Mesquita et al. 2016, Higham et al. 2017, Fenker et al. 2020, de Oliveira et al. 2021b) / partially arboreal (Moraes et al. 2016), semi arboreal mostly on tree trunks (Uchoa et al. 2022)

Habitat
Forest
Biome
Tropical & Subtropical Moist Broadleaf Forests
Active season · months of the year
12months
Region
Neotropic
Mainland or island
Mainland
Highest it lives · above sea level
1000m

27-38 (Uchoa et al. 2022)

Range size
7,917,263km²
Density
12.3per hectare

Breeding

Reproduction
Oviparous
Sex decided by
Genes, XX/XY
Average clutch
1.34eggs
Eggs or young per clutch
1–2eggs

I had 1 egg as average, Avila-Pires et al. 2010 write "2 at a time", Torres-Carvajal and Salazar-Valenzuela 2013: can have 2 in the oviduct - but in different stages, 1 (Vitt et al. 2008, Fenker et al. 2020, Senaris et al. 2018, de Oliveira et al. 2021b), means 1-1.68 (Mesquita et al. 2016), usually 1 (Uchoa et al. 2022)

Mean clutch
1–1.68eggs
Clutches a year
1–14per year
First breeds at
12months

Naming and history

Suborder
Sauria
Infraorder
Gekkota
Subspecies
No
Described by
Guichenot
Moved to another genus · since it was first described
Yes
Described in
1855
Type locality
Peru

Keeping one

7.5 in × 4.75 in × 7.5 in(19 × 12 × 19 cm)

Minimum length × width × height, for one animal. Bigger is always better.

The standard sizes climbing species at 4 × 2.5 × 4 times snout-vent length.

Lives in vegetation, so height and climbing structure matter more than floor space.

Mindestanforderungen an die Haltung von Reptilien (Sachverständigengutachten), German Federal Ministry for Nutrition, Agriculture and Forestry, Animal Welfare Division, 10 January 1997. The standard states these floor areas are recommendations rather than binding limits.

From this animal’s own snout-vent length of 1.75 in (47 mm), at 4 × 2.5 × 4 times it, following the German federal welfare standard — how this is worked out.

In a laboratory thermal gradient this species settled at 78 °F (25.7 °C).

Preferred body temperature, recorded in a laboratory gradient where the animal could choose freely. A measurement of the animal, not a setting for a thermostat.

Feeding

A prey item should be no wider than the space between the animal's eyes.

Widely used across reptile husbandry references. The stated reason is that the gap approximates the width of the throat, so wider prey is associated with impaction. This is established practice, not a measurement.

0kJ per day

Worked out for an animal of 3 g, the heaviest recorded for Trinidad Gecko — 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.

  • 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 · 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
  • Longest recorded life
  • Body temperature when active · measured in the wild
  • Eats arthropods
  • Eats vertebrates
  • Eats plant matter
  • How the young develop
  • Gestation or incubation
  • Clutches in a year
  • 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
  • Colour on the back
  • Pattern on the back
  • Pupil
  • Red List criteria
  • Home range · largest recorded
  • Active in
  • Lowest it lives · above sea level

Others in Sphaerodactylidae

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). Gonatodes humeralis. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/gonatodes-humeralis

@misc{gonatodes_humeralis_2026,
  title  = {Gonatodes humeralis},
  author = {{The Reptile & Amphibian Encyclopedia}},
  year   = {2026},
  url    = {https://www.allanglescreatures.com/species/gonatodes-humeralis}
}

Sources

  1. Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
  2. Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.
  3. Catalogue of Life (dataset 3LR), used under CC BY.