All Angles Creatures
Squamata · ScincidaeEntry 7,905 of 21,572

Reptilia · Squamata

Eugongylus unilineatusde Rooij, 1915

Papuan Shark Skink

No photograph of this species exists under a license anyone may reuse. It gets the same page regardless.

A skink from the Australo-Pacific region, reaching 118 mm snout to vent.

Also called One-striped Sheen-skink.

Once published as Lygosoma unilineatum — those names reach this page.

ReptiliaSquamataScincidaeEugongylus

We do not have enough on this species yet

Catalogue of Life records this animal’s name, its family and where it sits in the tree of life. Beyond that, only 25 facts are on record — no diet, no lifespan, nothing we would be willing to publish as an entry.

So this page waits here rather than pretending to be one. It is not listed and not submitted to search engines. If you know this animal and can point us at a published source, we would rather have it right than have it soon.

Grows to
118mm
greatest recorded
Weighs up to
35.76g
greatest
Red List
Least Concern
Body length across Scincidae

Longer than 86% of all skinks anyone has measured.

86% of 1,710 species are smaller14% larger
24 mmthe whole family, smallest to largest500 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 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

25 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

The animal itself

Limbs
Four legs
Venomous
No
Fangs
None

Size

Length snout to vent · greatest recorded
118mm4.75 in

max 118 mm SVL (Feldman et al. 2016)

Hatchling length · snout to vent
57.5mm2.25 in
Largest juvenile · snout to vent
57.5mm2.25 in
Body mass · greatestcomputed
35.76g1.3 oz

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

Body mass · adult female, meanmeasured
19.4g0.68 oz

How it lives

Habitat
Forest
Biome
Tropical & Subtropical Moist Broadleaf Forests
Region
Australo-Pacific
Mainland or island
Found only on islands
Highest it lives · above sea level
200m
Range size
81,114km²

Breeding

Average clutch
4eggs

Naming and history

Suborder
Sauria
Infraorder
Scincoidea
Subspecies
No
Described by
De Rooij
Moved to another genus · since it was first described
Yes
Described in
1915
Type locality
Papua New Guinea

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 at hatching
  • Longest recorded life
  • Preferred body temperature · chosen in a laboratory gradient
  • Body temperature when active · measured in the wild
  • Diet
  • Eats arthropods
  • Eats vertebrates
  • Eats plant matter
  • How it hunts
  • Active
  • Where it lives
  • Reproduction
  • How the young develop
  • Gestation or incubation
  • Smallest clutch recorded
  • Largest clutch recorded
  • Mean clutch · smallest reported
  • Mean clutch · largest reported
  • 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
  • Body temp in the wild · lowest mean recorded
  • Body temp in the wild · highest mean recorded
  • Colour on the back
  • Pattern on the back
  • Pupil
  • Sex decided by
  • Population trend
  • Red List criteria
  • Active season · shortest recorded
  • Active season · longest recorded
  • Density · lowest recorded
  • Density · highest recorded
  • Home range · largest recorded
  • Active in
  • Lowest it lives · above sea level

Others in Scincidae

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.