Barisia imbricata
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~30% in a week ~60%
Barisia imbricata, also known commonly as the imbricate alligator lizard, the transvolcanic alligator lizard, and el escorpión de transvolcánico in Mexican Spanish, is a species of medium-sized lizard in the family Anguidae. The species is endemic to Mexico.
B. imbricata is found in the Mexican states of Aguascalientes, Chihuahua, Guanajuato, Guerrero, Hidalgo, Jalisco, México, Michoacán, Morelos, Nayarit, Oaxaca, Puebla, Veracruz, and Zacatecas. The preferred natural habitats of B. imbricata are forest and grassland, at altitudes of 1,200–3,000 m (3,900–9,800 ft).
B. imbricata is terrestrial. B. imbricata preys predominately upon insects but will also kill and eat small vertebrates. The mode of reproduction of B. imbricata has been described as viviparous and ovoviviparous. Litter size is up to 11 newborns.
Females demonstrate a summer/autumn activity pattern with follicular growth starting in spring (June) and ovulation occurring in Autumn (late August–September). Within the Río Frío, Mexico, Mexico area, ovarian activity is positively correlated with precipitation, however there is no correlation with... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toluca | 🇲🇽 México | |
| 2 | Mexico City | 🇲🇽 México | |
| 3 | Puebla | 🇲🇽 México |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Denver Zoo | 🇺🇸 United States |
No species of the same family or order lives in Mexico City, so these are its closest relatives here: other reptiles.
With luck
About 10% of wildlife watchers report a Transvolcanic Alligator Lizard sighting in Mexico City on a given day, based on 206 verified sightings from GBIF citizen-science data. It is the 5th most-seen of the 37 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.
July and October
In those months about 20% of wildlife watchers report a Transvolcanic Alligator Lizard in Mexico City on a given day, against under 5% in March, the lowest month. Those are among Mexico City's wettest months, with about 110 mm of rain a month against 5 mm in December.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Transvolcanic Alligator Lizard sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 3
Of the 3 cities where we can rate Transvolcanic Alligator Lizard sightings, Mexico City ranks 2nd at about 10%. The best odds are in Toluca (México, about 20%).
GBIF citizen-science records
It is estimated from how often the Transvolcanic Alligator Lizard is recorded against all the reptiles logged in Mexico City (206 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.
