Reptilia · Squamata
Eulamprus tympanumLönnberg & Andersson, 1915
Highland Water Skink
Photograph by Donald Hobern from Copenhagen, Denmark, CC BY, via Wikimedia Commons
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A day-active, meat-eating skink from the Australo-Pacific region, reaching 100 mm snout to vent.
Also called Cool-temperate Water-skink.
Once published as Sphenomorphus tympanum — those names reach this page.
Reptilia › Squamata › Scincidae › Eulamprus
- Grows to
- 100.1mm
- greatest recorded
- Eats
- Carnivorous
- Active
- Diurnal
- Lives up to
- 15years
Longer than 78% of all skinks 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 24 to 500 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
43 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
- 2017
- Population trend
- Stable
The animal itself
- Limbs
- Four legs
- Venomous
- No
- Fangs
- None
- Longest recorded life
- 15years
- Preferred body temperature · chosen in a laboratory gradientmeasured
- 29.5°C
- Body temperature when active · measured in the wild
- 28.8°C84 °F
- Body temp in the wild · mean, when active
- 26.1–31.5°C79–89 °F
Dubey et al. 2013: 15; usually 5-6 (Pengilley 1972, nature), up to 15 (Robertson and Coventry 2019)
mean body temperature of active individuals in nature
body temperature of active animals in nature
Size
- Length snout to vent · greatest recorded
- 100.1mm4 in
- Length snout to vent · adult female mean
- 88.1mm3.5 in
- Largest female · snout to vent
- 88.1mm3.5 in
- Hatchling length · snout to vent
- 35.5mm1.5 in
- Largest juvenile · snout to vent
- 35.5mm1.5 in
- Body mass · greatestcomputed
- 21.34g0.75 oz
- Body mass at hatchingmeasured
- 0.99g0.03 oz
max 100.1 mm SVL (Feldman et al. 2016)
snout-vent length; the source column mixes this with straight carapace length
computed from length by a family-level allometric equation, not weighed
How it lives
- Diet
- Carnivorous
- How it hunts
- Active foraging
- Active
- Diurnal
- Where it lives
- Arboreal, terrestrial
- Habitat
- Forest, Wetlands
- Biome
- Temperate Broadleaf & Mixed Forests
- Region
- Australo-Pacific
- Mainland or island
- Mainland
- Elevation · above sea level
- 10–1720m
- Range size
- 244,014km²
Omnivorous: Invertebrates and some vertebrates and plant material (Greer 2005) / insectivorous (Huey and Bennett 1987) / arthropods and small lizards (Michael and Lindenmayer 2010, Hutchinson et al. 2001), invertebrates, small lizards and frogs - arthropods and some plant material in marnieae (Robertson and Coventry 2019)
active (Hutchinson et al. 2001)
(basking, Swan et al. 2017), E. t. marnieae heliotherm (Robertson and Coventry 2019), Diurnal (e.g., Swan 2020)
Terrestrial and Arboreal / Semi aquatic (Bauer and Jackman 2008) / close to creeks, swamps and lagoons (Swan 2020)
500-1040 (Pengilley 1972)
Breeding
- Reproduction
- Viviparous
- Sex decided by
- Temperature
- Average clutch
- 3.28eggs
- Eggs or young per clutch
- 1–9eggs
- Mean clutch
- 2.7–3.86eggs
- Clutches in a year
- 0.75per year
- Clutches a year
- 0.5–1per year
- First breeds at
- 24–48months
2-5 (Hutchinson et al. 2001), 3-9 (Brown 2012), Pengilley 1972 (1-5, means 2.7-3.1), 3-4 (Dave Chapple pers. comm., 27.2.2019; n=2), 1-8 (Robertson and Coventry 2019)
Naming and history
- Suborder
- Sauria
- Infraorder
- Scincoidea
- Subspecies
- Eulamprus tympanum marnieae HUTCHINSON & RAWLINSON 1995 Eulamprus tympanum tympanum (LÖNNBERG & ANDERSSON 1915)
- Described by
- Lönnberg & Andersson
- Moved to another genus · since it was first described
- Yes
- Described in
- 1915
- Type locality
- Australia
Keeping one
15.5 in × 15.5 in × 15.5 in(40 × 40 × 40 cm)
Minimum length × width × height, for one animal. Bigger is always better.
The standard sizes ground species at 4 × 4 × 2.5 and climbing species at 4 × 2.5 × 4 times snout-vent length.
Recorded both on the ground and climbing, so this is the larger of the two rules in every dimension.
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 4 in (100.1 mm), at 4 × 4 × 4 times it, following the German federal welfare standard — how this is worked out.
In a laboratory thermal gradient this species settled at 85 °F (29.5 °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.
3kJ per day
Worked out for an animal of 21 g, the heaviest recorded for Highland Water Skink — 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 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
- — Eats arthropods
- — Eats vertebrates
- — Eats plant matter
- — How the young develop
- — Gestation or incubation
- — 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
- — Density · highest recorded
- — Home range · largest recorded
- — Active in
Others in Scincidae
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). Eulamprus tympanum. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/eulamprus-tympanum
@misc{eulamprus_tympanum_2026,
title = {Eulamprus tympanum},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/eulamprus-tympanum}
}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.