Island Night lizard (Xantusia riversiana)

Federal Register | Recovery | Critical Habitat | Conservation Plans | Petitions | Life History

Listing Status:   

General Information

The Island Night lizard grows to be between 5 and 8 inches long. They are among the largest of the Night lizard Species. They have no eyelids and their pupils are vertical. Cool. They are gray to yellowish brown with dark spots. Some have a light stripe with dark edges. The Island Night lizard is referred to as a soft-skinned lizard, as the scales are generally small and appears to be loose around the neck.

  • States/US Territories in which the Island Night lizard, Entire is known to or is believed to occur:  California
  • US Counties in which the Island Night lizard, Entire is known to or is believed to occur:  View All
  • Additional species information
 
Current Listing Status Summary
Status Date Listed Lead Region Where Listed
09/12/1977 California/Nevada Region (Region 8) Entire

» Federal Register Documents

Federal Register Documents
Date Citation Page Title
08/22/2006 71 FR 48900 48903 Endangered and Threatened Wildlife and Plants; 90-Day Findings for Petitions To Delist the Island Night Lizard
11/03/2005 70 FR 66842 66844 Endangered and Threatened Wildlife and Plants; Extension of Comment Period for the Valley Elderberry Longhorn Beetle, Smith's Blue Butterfly, Delhi Sands Flower Loving Fly, Morro Shoulderband Snail, Giant Garter Snake, San Francisco Garter Snake, Island Night Lizard, California Least Tern, Least Bell's Vireo, Chinese Camp Brodiaea, Mariposa Pussypaws, San Clemente Island Indian Paintbrush, Spring-Loving Centaury, Springville Clarkia, San Clemente Island Larkspur, Santa Barbara Island Dudleya, Ash Meadows Gumplant, San Clemente Island Woodland Star, San Clemente Island Lotus, San Clemente Island Bush Mallow, Amargosa Niterwort, Eureka Valley Evening Primrose, Yreka Phlox, Hartweg's Golden Sunburst, San Joaquin Adobe Sunburst, Santa Cruz Island Rock-Cress, Keck's Checker-mallow, Eureka Dune Grass, Kneeland Prairie Pennycress, Hidden Lake Bluecurls, and Red Hills Vervain 5-Year Reviews.
08/11/1977 42 FR 40682 40685 Listing of Seven California Channel Island Animals and Plants; 42 FR 40682 40685 (San Clemente loggerhead shrike, Lanius ludovicianus mearnsi; San Clemente broom, Lotus scoparius; San Clemente bushmallow, Malacothamnus elementinus; San Clemente Island larkspur, Delphinium kinkiense; San Clemente Island Indian paintbrush, Castilleja grisea; island night lizard, Klauberina riversiana; San Clemente sage sparrow, Amphispiza belli clementae)
04/01/2013 78 FR 19510 19514 Initiation of 5-Year Reviews of 56 Species in California and Nevada; request for information
07/07/2005 70 FR 39327 39329 Endangered and Threatened Wildlife and Plants; Initiation of 5-Year Reviews of the Valley Elderberry Longhorn Beetle, Smith's Blue Butterfly, Delhi Sands Flower Loving Fly, Morro Shoulderband Snail, Giant Garter Snake, San Francisco Garter Snake, Island Night Lizard, California Least Tern, Least Bell's Vireo, Chinese Camp Brodiaea, Mariposa Pussypaws, San Clemente Island Indian Paintbrush, Spring-Loving Centaury, Springville Clarkia, San Clemente Island Larkspur, Santa Barbara Island Dudleya, Ash Meadows Gumplant, San Clemente Island Woodland Star, San Clemente Island Lotus, San Clemente Island Bush Mallow, Amargosa Niterwort, Eureka Valley Evening Primrose, Yreka Phlox, Hartweg's Golden Sunburst, San Joaquin Adobe Sunburst, Santa Cruz Island Rock-Cress, Keck's Checker-mallow, Eureka Dune Grass, Kneeland Prairie Pennycress, Hidden Lake Bluecurls, and Red Hills Vervain
02/14/2007 72 FR 7064 7084 Initiation of 5-Year Reviews of 58 Species in California and Nevada; Availability of Completed 5-Year Reviews in California and Nevada
04/01/2014 79 FR 18190 18210 Final Rule Removing the Island Night Lizard From the Federal List of Endangered and Threatened Wildlife
02/04/2013 78 FR 7907 7937 Proposed Rule: Removing the Island Night Lizard From the Federal List of Endangered and Threatened Wildlife; Availability of Draft Post-Delisting Monitoring Plan
05/21/2010 75 FR 28636 28642 Initiation of 5-Year Reviews of 34 Species in California and Nevada; Availability of 96 Completed 5-Year Reviews in California and Nevada
06/01/1976 41 FR 22073 22075 Proposed to Determine 2 Birds, 1 Lizard, 3 snails, and 1 Insect, all Indigenous to the California Channel Islands, To Be Endangered Species; 41 FR 22073 22075 (San Clemente loggerhead shrike, Lanius ludovicianus mearnsi; San Clemente sage sparrow, Amohispiza belli clementae; Island night lizard, Klauberina riversiana; Wreathed Island snail, Micrarionia redimita; Horseshoe snail, Micarionta intermisa; Gabb's snail, Micarionta gabbi; San clemente Coenonycha clemintina)

» Recovery

Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
01/26/1984 Recovery Plan for the Endangered and Threatened Species of the California Channel Islands View Implementation Progress Final
Other Recovery Documents
Date Citation Page Title Document Type
02/04/2013 78 FR 7907 7937 Proposed Rule: Removing the Island Night Lizard From the Federal List of Endangered and Threatened Wildlife; Availability of Draft Post-Delisting Monitoring Plan
  • Notice 12 month petition finding, Warranted
  • Notice Doc. Availability, Draft Post Delisting Monitoring Plan
  • Proposed Delisting, Recovered
02/14/2007 72 FR 7064 7084 Initiation of 5-Year Reviews of 58 Species in California and Nevada; Availability of Completed 5-Year Reviews in California and Nevada
  • Notice 5-year Review, Completion
04/01/2013 78 FR 19510 19514 Initiation of 5-Year Reviews of 56 Species in California and Nevada; request for information
  • Notice 5-year Review, Completion
05/21/2010 75 FR 28636 28642 Initiation of 5-Year Reviews of 34 Species in California and Nevada; Availability of 96 Completed 5-Year Reviews in California and Nevada
  • Notice 5-year Review, Initiation
04/01/2014 79 FR 18190 18210 Final Rule Removing the Island Night Lizard From the Federal List of Endangered and Threatened Wildlife
  • Final Delisting, Recovered
07/07/2005 70 FR 39327 39329 Endangered and Threatened Wildlife and Plants; Initiation of 5-Year Reviews of the Valley Elderberry Longhorn Beetle, Smith's Blue Butterfly, Delhi Sands Flower Loving Fly, Morro Shoulderband Snail, Giant Garter Snake, San Francisco Garter Snake, Island Night Lizard, California Least Tern, Least Bell's Vireo, Chinese Camp Brodiaea, Mariposa Pussypaws, San Clemente Island Indian Paintbrush, Spring-Loving Centaury, Springville Clarkia, San Clemente Island Larkspur, Santa Barbara Island Dudleya, Ash Meadows Gumplant, San Clemente Island Woodland Star, San Clemente Island Lotus, San Clemente Island Bush Mallow, Amargosa Niterwort, Eureka Valley Evening Primrose, Yreka Phlox, Hartweg's Golden Sunburst, San Joaquin Adobe Sunburst, Santa Cruz Island Rock-Cress, Keck's Checker-mallow, Eureka Dune Grass, Kneeland Prairie Pennycress, Hidden Lake Bluecurls, and Red Hills Vervain
  • Notice 5-year Review, Initiation
11/03/2005 70 FR 66842 66844 Endangered and Threatened Wildlife and Plants; Extension of Comment Period for the Valley Elderberry Longhorn Beetle, Smith's Blue Butterfly, Delhi Sands Flower Loving Fly, Morro Shoulderband Snail, Giant Garter Snake, San Francisco Garter Snake, Island Night Lizard, California Least Tern, Least Bell's Vireo, Chinese Camp Brodiaea, Mariposa Pussypaws, San Clemente Island Indian Paintbrush, Spring-Loving Centaury, Springville Clarkia, San Clemente Island Larkspur, Santa Barbara Island Dudleya, Ash Meadows Gumplant, San Clemente Island Woodland Star, San Clemente Island Lotus, San Clemente Island Bush Mallow, Amargosa Niterwort, Eureka Valley Evening Primrose, Yreka Phlox, Hartweg's Golden Sunburst, San Joaquin Adobe Sunburst, Santa Cruz Island Rock-Cress, Keck's Checker-mallow, Eureka Dune Grass, Kneeland Prairie Pennycress, Hidden Lake Bluecurls, and Red Hills Vervain 5-Year Reviews.
  • Notice 5-year Review
  • Notice Comment Period Extension
Five Year Review
Date Title
10/05/2012 Island Night Lizard (Xantusia riversiana) 5-Year Review (2012)
09/26/2006 Island Night Lizard 5-Year Review
Delisting Documents
Date Title
01/27/2014 Island Night Lizard (Xantusia riversiana) Final Post-Delisting Monitoring Plan
11/08/2012 Island Night Lizard Draft Post-Delisting Monitoring Plan

» Critical Habitat

No critical habitat rules have been published for the Island Night lizard.

» Conservation Plans

No conservation plans have been created for Island Night lizard.

» Petitions

» Life History

No Life History information has been entered into this system for this species.

» Other Resources

NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.