Psammophis crucifer
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~30% in a week ~60%
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 |
With luck
About 10% of wildlife watchers report a Cross-marked Grass Snake sighting in West Coast National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th 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 60%, if each day is a fresh chance.
October and November
In those months about 30% of wildlife watchers report a Cross-marked Grass Snake in West Coast National Park on a given day, against under 5% in February–August and December, the lowest months. Those are among West Coast National Park's driest months, with about 15 mm of rain a month against 70 mm in June.
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.
2nd of 4
Of the 4 parks where we can rate Cross-marked Grass Snake sightings, West Coast National Park ranks 2nd at about 10%. The best odds are in De Hoop Nature Reserve (South Africa, about 20%).
Same genus: Psammophis
The closest relatives of the Cross-marked Grass Snake that you can see in West Coast National Park (genus Psammophis, Sand Racers) are Cape Sand Snake (about 20%) and Karoo Sand Snake (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cross-marked Grass Snake is recorded against all the reptiles logged in West Coast National Park (7 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.
