San Clemente Night Lizard

San Clemente Night Lizard

Xantusia riversiana

Silhouette: Beth Reinke · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
Daily sighting probability <5% · Rare
at Channel Islands National Park
8 Verified sightings at Channel Islands National Park From 2019 to 2026
8 Verified sightings across 1 park From 2019 to 2026
February Best month highest sighting rate

About the San Clemente Night Lizard

The island night lizard (Xantusia riversiana) is a species of lizard in the family Xantusiidae. The species is native to three of the Channel Islands of California: San Nicolas Island, Santa Barbara Island, and San Clemente Island. A small population of the island night lizard also lives on Sutil Island, near Santa Barbara Island.

The specific name, riversiana, is in honor of James John Rivers (1824–1913), a London-born physician and naturalist, who was Curator of Natural History at the University of California. The San Clemente Island population is a subspecies which is recognized as being valid.

Xantusia riversiana reticulata H.M. Smith, 1946 – San Clemente night lizard The island night lizard was listed as a threatened species under the Endangered Species Act (ESA) in the United States since 1977; the International Union for Conservation of Nature (IUCN) lists the species as vulnerable. In 2006, the US Fish and Wildlife Service, the administrating agency for the ESA, removed the San Clemente subspecies from the ESA. Better control of munitions-sparked wildfires may have been a reason. In March 2014, the US Fish and Wildlife... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Channel Islands National Park 🇺🇸 United States
<5%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a San Clemente Night Lizard in Channel Islands National Park?

Under 5% of wildlife watchers report a San Clemente Night Lizard sighting in Channel Islands National Park, based on 8 verified sightings from GBIF citizen-science data.

When is the best time to see San Clemente Night Lizard in Channel Islands National Park?

February has the highest sighting rate for San Clemente Night Lizard in Channel Islands National Park in our monthly data.

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