Craspedocephalus gramineus
Silhouette: Vijay Karthick · PhyloPic
In 3 days ~30% in a week ~50%
Craspedocephalus gramineus, known as the bamboo pit viper, Indian green pit viper, or common green pit viper, is a venomous pit viper species found in the southern and north eastern parts of India. No subspecies are currently recognized.
The rostral scale is as deep as broad or broader than deep. The upper head-scales are small, smooth, imbricate; supraocular scale narrow, rarely broken up. The internasals are contact or separated by one or two scales. There are 8 to 13 scales on a line between the supraoculars; usually one or two, rarely three, series of scales between the suboculars and the labials; 9 to 12 upper labials, second usually forming the anterior border of the loreal pit, third largest; temporal scales smooth. The dorsal scales are more or less distinctly keeled, in 21 (rarely 19 or 23) rows; ventrals 145–175; anal scale entire; subcaudals in two rows 53–76.
The upper parts are usually bright green, rarely yellowish, greyish, or purplish brown, with or without black, brown, or reddish spots; usually a light, white, yellow, or red streak along the outer row of scales; end of tail frequently yellow or red; lower parts green, yellow, or whitish.
It grows... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kanha National Park | 🇮🇳 India |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mumbai | 🇮🇳 India |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Nehru Zoological Park | 🇮🇳 India | |
| 2 | Kadoorie Farm and Botanic Garden | 🇭🇰 Hong Kong SAR China | |
| 3 | Rajiv Gandhi Zoological Park | 🇮🇳 India |
With luck
About 10% of wildlife watchers report a Common Bamboo Viper sighting in Mumbai on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 9th most-seen of the 23 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.
July–August and November–December
In those months about 20% of wildlife watchers report a Common Bamboo Viper in Mumbai on a given day, against under 5% in January–May and September, the lowest months. Those are among Mumbai's wettest months, with about 370 mm of rain a month against almost none in January.
Between 4 and 7 pm
Across all the parks we cover, that three-hour window holds the most Common Bamboo Viper sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Only Mumbai, in our data
Mumbai is the only city on Wallace's Line with enough records to rate Common Bamboo Viper sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Common Bamboo Viper is recorded against all the reptiles logged in Mumbai (18 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.
