Psammophis crucifer
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~40% in a week ~70%
Psammophis crucifer, the cross-marked grass snake or the cross-marked sand snake and Montane grass snake, is a species of mildly venomous snake belonging to the genus Psammophis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | De Hoop Nature Reserve | 🇿🇦 South Africa | |
| 2 | West Coast National Park | 🇿🇦 South Africa | |
| 3 | Table Mountain National Park | 🇿🇦 South Africa | |
| 4 | Garden Route National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cape Town | 🇿🇦 South Africa |
Possible
About 20% of wildlife watchers report a Cross-marked Grass Snake sighting in De Hoop Nature Reserve on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 17th most-seen of the 18 reptiles we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
July and November
In those months about 40% of wildlife watchers report a Cross-marked Grass Snake in De Hoop Nature Reserve on a given day, against under 5% in August–September and December–June, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Cross-marked Grass Snake sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 parks where we can rate Cross-marked Grass Snake sightings, De Hoop Nature Reserve has the highest daily chance: about 20%. Next come West Coast National Park (South Africa, about 10%) and Table Mountain National Park (South Africa, about 10%).
GBIF citizen-science records
It is estimated from how often the Cross-marked Grass Snake is recorded against all the reptiles logged in De Hoop Nature Reserve (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.
