Trimorphodon quadruplex
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~40% in a week ~70%
Trimorphodon quadruplex, the Central American lyre snake, is a species of snake of the family Colubridae. The snake is found in Nicaragua, Honduras, El Salvador. and Costa Rica. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santa Rosa National Park | 🇨🇷 Costa Rica | |
| 2 | Palo Verde National Park | 🇨🇷 Costa Rica | |
| 3 | Ostional Wildlife Refuge | 🇨🇷 Costa Rica | |
| 4 | Las Baulas Marine National Park | 🇨🇷 Costa Rica | |
| 5 | Cabo Blanco Absolute Nature Reserve | 🇨🇷 Costa Rica |
Possible
About 20% of wildlife watchers report a Central American Lyresnake sighting in Las Baulas Marine National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 10th most-seen of the 13 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.
April
In that month about 40% of wildlife watchers report a Central American Lyresnake in Las Baulas Marine National Park on a given day, against under 5% in May and July–February, the lowest months. That is one of Las Baulas Marine National Park's driest months, with about 70 mm of rain against 480 mm in October.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Central American Lyresnake sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
4th of 5
Of the 5 parks where we can rate Central American Lyresnake sightings, Las Baulas Marine National Park ranks 4th at about 20%. The best odds are in Santa Rosa National Park (Costa Rica, about 40%), Palo Verde National Park (Costa Rica, about 40%) and Ostional Wildlife Refuge (Costa Rica, about 20%). All parks ranked.
Same family: Colubridae
The closest relatives of the Central American Lyresnake that you can see in Las Baulas Marine National Park (family Colubridae, Colubrid Snakes) are Black-banded Cat-eyed Snake (about 20%) and Rhombic Cat-eyed Snake (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Central American Lyresnake is recorded against all the reptiles logged in Las Baulas Marine National Park (8 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.
