Reptilia · Squamata
Sphaerodactylus macrolepisGünther, 1859
“Cotton ginner”
Photograph by Sara Lovotti, CC BY, via iNaturalist
A ground-dwelling, day-active, meat-eating gecko from the Neotropic region, reaching 28 mm snout to vent.
Also called Big-scaled Dwarf Gecko, Big-scaled Least Gecko.
Reptilia › Squamata › Sphaerodactylidae › Sphaerodactylus
- Grows to
- 27.5mm
- greatest recorded
- Eats
- Carnivorous
- Active
- Diurnal
- Lives
- Terrestrial
Longer than only 15% of all species in Sphaerodactylidae 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 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
37 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
- 2015
- Population trend
- Stable
The animal itself
- Limbs
- Four legs
- Venomous
- No
- Fangs
- None
- Preferred body temperature · chosen in a laboratory gradientmeasured
- 25.3–27.6°C78–82 °F
- Body temperature when active · measured in the wild
- 29.3°C85 °F
- Body temp in the wild · mean, when active
- 29.3–30.5°C85–87 °F
mean body temperature of active individuals in nature
body temperature of active animals in nature
Size
- Length snout to vent · greatest recorded
- 27.5mm1 in
- Hatchling length · snout to vent
- 12.91mm0.5 in
- Largest juvenile · snout to vent
- 13mm0.5 in
- Body mass · greatestcomputed
- 0.52g0.02 oz
Shai Meiri, unpublished
largely converted from length by allometry in the source
How it lives
- Diet
- Carnivorous
- How it hunts
- Sit and wait
- Active
- Diurnal
- Where it lives
- Terrestrial
- Habitat
- Forest, Shrubland
- Biome
- Tropical & Subtropical Moist Broadleaf Forests
- Region
- Neotropic
- Mainland or island
- Found only on islands
- Highest it lives · above sea level
- 840m
- Range size
- 9158km²
- Density · highest recorded
- 67,600per hectare
Arthropods (see "Sources (general)")
Banfi et al. 2023
(Rodda et al. 2001, Huey et al. 2009) mostly in the afternoon: "Gecko activity away from deep shade was low (essentially zero on sunny days) until 1600 when it increased dramatically (Fig. 8).", inferred from Allen and Powell 2014 - their own observations stopped at 17:00, presumably went to the pub: "We did not collect data before sunrise or after dark, so we cannot say whether activity continued into or through the night,") / "at times active at dusk or even diurnal" (Schwartz and Henderson 1991)
Leaf litter (see Sources (general) column)
Breeding
- Reproduction
- Oviparous
- Sex decided by
- Genes, XX/XY
- Average clutch
- 1eggs
- Eggs or young per clutch
- 1eggs
- Mean clutch
- 1eggs
Naming and history
- Suborder
- Sauria
- Infraorder
- Gekkota
- Subspecies
- No
- Described by
- Günther
- Moved to another genus · since it was first described
- No
- Described in
- 1859
- Type locality
- Puerto Rico
Keeping one
4.25 in × 4.25 in × 2.75 in(11 × 11 × 7 cm)
Minimum length × width × height, for one animal. Bigger is always better.
The standard sizes ground-dwelling species at 4 × 4 × 2.5 times snout-vent length.
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 in (27.5 mm), at 4 × 4 × 2.5 times it, following the German federal welfare standard — how this is worked out.
In a laboratory thermal gradient this species settled at 78–82 °F (25.3–27.6 °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 1 g, the heaviest recorded for “Cotton ginner” — 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 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 · nose to tail
- — Largest juvenile · shell length
- — Egg length
- — Egg width
- — Body mass · a typical adult
- — Body mass · adult female, mean
- — Body mass at hatching
- — Longest recorded life
- — Eats arthropods
- — Eats vertebrates
- — Eats plant matter
- — How the young develop
- — Gestation or incubation
- — 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
- — Colour on the back
- — Pattern on the back
- — Pupil
- — Red List criteria
- — Active season · shortest recorded
- — Active season · longest recorded
- — Density · lowest recorded
- — 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). Sphaerodactylus macrolepis. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/sphaerodactylus-macrolepis
@misc{sphaerodactylus_macrolepis_2026,
title = {Sphaerodactylus macrolepis},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/sphaerodactylus-macrolepis}
}Sources
- Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
- Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.
- Catalogue of Life (dataset 3LR), used under CC BY.