Liuixalus romeri
In 3 days ~20% in a week ~40%
Romer's tree frog (Liuixalus romeri) is a species of frog native to Hong Kong and a small portion of Guangxi, China. With an average snout-vent length of 1.5 – 2.5 cm, it is the smallest amphibian recorded in the territory. Despite its common name, it belongs to the family Rhacophoridae, instead of the Hylidae.
It is named for John Dudley Romer. The female frog is slightly larger than the male. The body is tan brown, with the underside white. An X-like marking, made up of two crooked black lines, can be seen on the dorsum. Sometimes, the lines do not meet medially, thus leading to a chevron marking posteriorly. Underneath the X-like marking lies another upside-down V-like marking. The skin is peppered with fine granules. A distinct fold extends from the eye to the foreleg.
Romer's tree frog has a triangular but blunt snout with brown-spotted lips. Between the eyes is a dark bar, which extends to the eyelids. The hind legs are long, slender, and barred with irregular brown-to-black cross-bands. All digits have small toe pads, which allow the frog to hang on tree branches or leaves.
The habitat of the frog is well-wooded areas near small streams... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hong Kong | 🇨🇳 China |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Ocean Park Hong Kong | 🇨🇳 China |
With luck
About 10% of wildlife watchers report a Romer's Tree Frog sighting in Hong Kong on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 13th most-seen of the 16 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
January–February, April and July–October
In those months about 10% of wildlife watchers report a Romer's Tree Frog in Hong Kong on a given day, against under 5% in March, May–June and November–December, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Romer's Tree Frog sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Hong Kong, in our data
Hong Kong is the only city on Wallace's Line with enough records to rate Romer's Tree Frog sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Romer's Tree Frog is recorded against all the amphibians logged in Hong Kong (28 verified sightings), 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.
