Hypsiglena ochrorhynchus
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~10% in a week ~20%
Hypsiglena ochrorhynchus, also known commonly as the coast night snake and the spotted night snake, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is native to California in the United States and to the Baja California Peninsula in Mexico. There are eight recognized subspecies.
H. ochrorhynchus is oviparous. Eight subspecies are recognized as being valid, including the nominotypical subspecies. Hypsiglena ochrorhynchus baueri Zweifel, 1958 Hypsiglena ochrorhynchus gularis W. Tanner, 1954 Hypsiglena ochrorhynchus klauberi W. Tanner, 1946
Hypsiglena ochrorhynchus martinensis W. Tanner & Banta, 1962 Hypsiglena ochrorhynchus nuchalata W. Tanner, 1943 Hypsiglena ochrorhynchus ochrorhynchus Cope, 1860 Hypsiglena ochrorhynchus tortugaensis W. Tanner, 1946 Hypsiglena ochrorhynchus venusta Mocquard, 1899
The subspecific name, baueri, is in honor of American entrepreneur Harry J. Bauer (1886–1960) for his support of the 1958 Puritan-American Museum expedition to Baja California. The subspecific name, klauberi, is in honor of American herpetologist Laurence Monroe Klauber. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Diego | 🇺🇸 United States | |
| 2 | Los Angeles | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Orange County Zoo | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Coast Night Snake sighting in San Diego on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 21st 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 Coast Night Snake in San Diego on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Coast Night Snake 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 cities where we can rate Coast Night Snake sightings, San Diego has the highest daily chance: under 5%. Next come Los Angeles (United States, under 5%).
Same family: Colubridae
The closest relatives of the Coast Night Snake that you can see in San Diego (family Colubridae, Colubrid Snakes) are Gopher Snake (about 10%), California King Snake (about 10%) and Striped Racer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Coast Night Snake is recorded against all the reptiles logged in San Diego (20 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.
