Eutropis rugifera
Silhouette: PhyloPic
In 3 days ~30% in a week ~50%
Eutropis rugifera, variously known as Nicobar Island skink or rough-scaled sun skink, is a species of skink from southeastern Asia. Snout short, obtuse. Lower eyelid scaly. Nostril behind vertical of suture between rostral and first labial; no postnasal; anterior loreal not deeper but much smaller than second; frontonasal broader than long, largely in contact with the rostral and with the frontal: the latter shield longer than the frontoparietals and interparietal together, in contact with the first and second supraoculars; 4 supraoculars, second largest; 6 supraciliaries, first largest; fronto-parietals distinct, larger than the interparietal; a pair of nuchals; 5 (or 4) labials anterior to the subocular, which is large and not narrower below. Ear-opening very small, oval, horizontal, with projecting granules round its border. Dorsal, nuchal, and lateral scales very strongly quinquecarinate; 26 scales round the body, of which 8 or 10 are smooth. The hind limb reaches the elbow of the adpressed fore limb. Subdigital lamellae smooth. Scales on upper surface of tibia bicarinate. Tail 1.6 times the length of head and body. Dark olive-brown above, greenish-white inferiorly... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 2 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 3 | Bako National Park | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bandung | 🇮🇩 Indonesia | |
| 2 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 3 | Singapore | 🇸🇬 Singapore |
With luck
About 10% of wildlife watchers report a Rough-scaled Sun Skink sighting in Bako National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 20 reptiles we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report a Rough-scaled Sun Skink in Bako National Park on a given day, against under 5% in March, May–July, September and November–January, the lowest months.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most Rough-scaled Sun Skink sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
3rd of 3
Of the 3 parks where we can rate Rough-scaled Sun Skink sightings, Bako National Park ranks 3rd at about 10%. The best odds are in Taman Negara National Park (Malaysia, about 20%) and Gunung Leuser National Park (Indonesia, about 10%).
GBIF citizen-science records
It is estimated from how often the Rough-scaled Sun Skink is recorded against all the reptiles logged in Bako National Park (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
