Laemanctus serratus
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~30% in a week ~60%
Laemanctus serratus, also known commonly as the serrated casquehead iguana, is a species of lizard in the family Corytophanidae. The species is native to southeastern Mexico and Central America. There are two recognized subspecies.
Laemanctus serratus is found in the Mexican states of Campeche, Chiapas, Hidalgo, Oaxaca, Puebla, Querétaro, Quintana Roo, San Luis Potosí, Tamaulipas, Veracruz, and Yucatán, and also in the countries of Belize, Guatemala, and Honduras.
The preferred natural habitat of Laemanctus serratus is forest Laemanctus serratus has enlarged triangular scales along the posterior margin of the head casque, and a serrated middorsal crest. Laemanctus serratus is diurnal and arboreal.
Laemanctus serratus is oviparous. Two subspecies are recognized as being valid, including the nominotypical subspecies. Laemanctus serratus alticoronatus Cope, 1866 Laemanctus serratus serratus Cope, 1864 Cope ED (1864). "Contributions to the Herpetology of Tropical America". Proceedings of the Academy of Natural Sciences of Philadelphia [16]: 166... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Calakmul Biosphere Reserve | 🇲🇽 Mexico | |
| 2 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | San Diego Zoo | 🇺🇸 United States | |
| 2 | Chester Zoo | 🇬🇧 United Kingdom | |
| 3 | Faunia | 🇪🇸 Spain |
With luck
About 10% of wildlife watchers report a Serrated Casquehead Iguana sighting in Calakmul Biosphere Reserve on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 26th most-seen of the 46 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.
August
In that month about 30% of wildlife watchers report a Serrated Casquehead Iguana in Calakmul Biosphere Reserve on a given day, against under 5% in September to April, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Serrated Casquehead Iguana sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 2 parks where we can rate Serrated Casquehead Iguana sightings, Calakmul Biosphere Reserve has the highest daily chance: about 10%. Next come Ría Lagartos Biosphere Reserve (Mexico, about 10%).
Same family: Corytophanidae
The closest relatives of the Serrated Casquehead Iguana that you can see in Calakmul Biosphere Reserve (family Corytophanidae, Helmeted Lizards) are Brown Basilisk (about 40%), Helmeted Iguana (about 20%) and Hernandez’s Helmeted Basilisk (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Serrated Casquehead Iguana is recorded against all the reptiles logged in Calakmul Biosphere Reserve (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.
