Lichanura orcutti
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~10% in a week ~20%
Lichanura orcutti, also known as the rosy boa, the coastal rosy boa, or the northern three-lined boa, is a species of snake in the family Boidae. This species is found North of the US–Mexico border within San Diego County in California and along the coastal Peninsular Ranges, northward into the Mojave Desert and eastward in the Sonoran Desert of California and Arizona. Lichanura orcutti is one of four boa species native to the continental United States, the other three being the desert rosy boa (Lichanura trivirgata), and the two species of rubber boas (Charina).
Zoologist Leonhard Stejneger described the species in 1889. Lichanura taxonomy is not well understood; some taxonomists have challenged the Lichanura genus and suggest that these species be grouped with Charina, the rubber boas. L. orcutti was previously considered to be a subspecies of L. trivirgata; DNA analysis later identified L. orcutti as a distinct species. Confusion over scientific names is compounded by the fact that Lichanura species are popular as pets and reptile keepers frequently use outdated taxonomy.
Lichanura orcutti is a heavy-bodied snake with smooth scales and a tapered... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Joshua Tree National Park | 🇺🇸 United States | |
| 2 | Death Valley National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Diego | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Disney's Animal Kingdom | 🇺🇸 United States | |
| 2 | San Diego Zoo | 🇺🇸 United States | |
| 3 | Caldwell Zoo | 🇺🇸 United States | |
| 4 | Siam Serpentarium | 🇹🇭 Thailand | |
| 5 | Aquarium of the Bay | 🇺🇸 United States |
No species of the same family or order lives in San Diego, so these are its closest relatives here: other reptiles.
Rare
Under 5% of wildlife watchers report a Northern Three-lined Boa sighting in San Diego on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 23rd most-seen of the 29 reptiles we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Northern Three-lined Boa in San Diego on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Northern Three-lined Boa 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.
Only San Diego, in our data
San Diego is the only city on Wallace's Line with enough records to rate Northern Three-lined Boa sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Northern Three-lined Boa is recorded against all the reptiles logged in San Diego (18 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.
