Non-Listed Species Precluded from Listing Due to Conservation

  • Provides a list of non-listed species (status is one of the following Resolved Taxon, Status Undefined, or Species of Concern) that were precluded from listing due to Conservation Efforts.
  • The species will need to have received a Notice of Candidate Removal due to Conservation Efforts OR Proposed Withdrawal due to Conservation Efforts via the ECOS Federal Register module before it will show up in this report.
  • Species that have received this determination historically, but are now listed are not represented in this report. In addition, only non-listed species that received this determination AFTER the 1996 CNOR (published in late February 1996) are represented in this report.
Scientific Name Common Name Reason for Removal/Withdrawal (Removal/Withdrawal Date)
Castilleja aquariensis Aquarius paintbrush - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 12,2006)
Thymallus arcticus Arctic grayling - Upper Missouri River DPS Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (August 20,2014)
Cimicifuga arizonica Arizona bugbane - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 30,2001)
Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 20,2000)
Lupinus aridus ssp. ashlandensis Ashland Lupine - Wherever found 12m petition finding: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (February 07,2003)
Erigeron basalticus Basalt daisy - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (December 06,2007)
Pseudanophthalmus major Beaver Cave beetle - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 11,2006)
Opuntia X multigeniculata Blue Diamond cholla - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 30,2001)
Phacelia stellaris Brand's phacelia - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (November 22,2013)
Fallicambarus gordoni Camp Shelby burrowing crayfish - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (May 11,2005)
Rumex orthoneurus Chiricahua dock - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (August 09,1999)
Castilleja christii Christ's paintbrush - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (November 21,2012)
Astragalus oophorus clokeyanus Clokey's egg-vetch - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 25,1999)
Oncorhynchus clarkii clarkii Coastal cutthroat Trout - Southwestern WA/Columbia River DPS Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (February 25,2010)
Rana luteiventris Columbia spotted frog - Great Basin DPS Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 08,2015)
Rana luteiventris Columbia spotted frog - Wasatch Front pop. UT 12m petition finding: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (April 02,1998)
Rana luteiventris Columbia spotted frog - West Desert pop. UT 12m petition finding: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (April 02,1998)
Pterodroma cookii Cook's petrel - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (January 05,2010)
Nerodia erythrogaster neglecta Copperbelly water snake - Illinois, Kentucky, and Indiana south of 40 degrees north latitude Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (January 29,1997)
Cicindela albissima Coral Pink Sand Dunes tiger beetle - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 02,2013)
Gila bicolor vaccaceps Cow Head tui chub - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 11,2006)
Downingia concolor brevior Cuyamac Lake downingia - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (February 06,1997)
Sceloporus arenicolus Dunes sagebrush lizard - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (June 19,2012)
Oncorhynchus mykiss aquilarum Eagle Lake rainbow Trout - Wherever found 12m petition finding: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (July 06,2016)
Pyrgulopsis notidicola Elongate mud meadows Springsnail - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (November 21,2012)
Phrynosoma mcallii Flat-tailed horned lizard - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (March 15,2011)
Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (July 15,1997)
Boechera pusilla Fremont County rockcress - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 20,2000)
Symphyotrichum georgianum Georgia aster - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 18,2014)
Allium gooddingii Goodding's onion - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 30,2001)
Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 20,2000)
Astragalus anserinus Goose Creek milkvetch - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 08,2015)
Penstemon grahamii Graham beardtongue - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (August 06,2014)
Pseudanophthalmus pholeter Greater Adams Cave beetle - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (December 08,2005)
Centrocercus urophasianus Greater sage-grouse - Columbia basin DPS Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 02,2015)
Centrocercus urophasianus Greater sage-grouse - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 02,2015)
Horkelia hendersonii Henderson's horkelia - Wherever found 12m petition finding: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (February 07,2003)
Cicindelidia highlandensis Highlands tiger beetle - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 06,2016)
Pseudanophthalmus holsingeri Holsinger's Cave Beetle - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (May 11,2005)
Astragalus equisolensis Horseshoe milk-vetch - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 12,2006)
Heuchera maxima Island alumroot - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (July 31,1997)
Iotichthys phlegethontis Least chub - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (August 26,2014)
Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (July 29,1999)
Pseudanophthalmus catorycetes Lesser Adams Cave beetle - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (December 08,2005)
Polites mardon Mardon skipper - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 04,2012)
Oncorhynchus mykiss ssp. McCloud R. redband trout - McCloud R. Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 20,2000)
Clarkia lingulata Merced clarkia - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 19,1997)
Charadrius montanus Mountain plover - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (May 12,2011)
Cordylanthus nidularius Mt. Diablo bird's-beak - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (February 28,1996)
Ambrysus funebris Nevares Spring naucorid bug (=Furnace Creek) - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 08,2015)
Sylvilagus transitionalis New England cottontail - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 15,2015)
Coccoloba rugosa No common name - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (March 04,1997)
Gulo gulo luscus North American wolverine - NEXP Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (August 13,2014)
Hazardia orcuttii Orcutt's hazardia - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (November 22,2013)
Astragalus cusickii var. packardiae Packard's milkvetch - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (December 05,2014)
Sidalcea hickmanii parishii Parish's checkerbloom - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 12,2006)
Limnanthes gracilis parishii Parish's meadowfoam - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (February 06,1997)
Abronia alpina Ramshaw Meadows sand-verbena - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 08,2015)
Lithobates onca Relict leopard Frog - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 06,2016)
Oncorhynchus clarkii virginalis Rio Grande cutthroat trout - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 01,2014)
Euphydryas anicia cloudcrofti Sacramento Mountains checkerspot Butterfly - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (December 21,2004)
Dudleya blochmaniae insularis Santa Rosa Island dudleya - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (July 31,1997)
Astragalus lentiginosus micans Shining milk-vetch - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 06,1998)
Calochortus persistens Siskiyou Mariposa lily - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 08,2015)
Astragalus lentiginosus sesquimetralis Sodaville milk-vetch - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 06,1998)
Potentilla basaltica Soldier Meadows Cinquefoil - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (August 02,2013)
Urocitellus endemicus Southern Idaho ground Squirrel - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 08,2015)
Dudleya sp. Sp. nov. ined. (munchkin) dudleya - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (July 31,1997)
Euphilotes ancilla cryptica Spring Mountains dark blue butterfly - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 19,2013)
Euphilotes ancilla purpura Spring Mountains dark blue butterfly - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 19,2013)
Paysonia stonensis Stones River bladderpod - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 25,1999)
Eriogonum argophyllum Sulphur Springs buckwheat - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 20,2000)
Pseudanophthalmus inexpectatus Surprising Cave beetle - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (December 06,2007)
Rorippa subumbellata Tahoe yellow cress - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 08,2015)
Calochortus umpquaensis Umpqua mariposa Lily - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 20,2000)
Zaitzevia thermae Warm Springs Zaitzevian riffle beetle - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (December 06,2007)
Urocitellus washingtoni Washington ground squirrel - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 21,2016)
Nysius wekiuicola Wekiu bug - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (October 26,2011)
Penstemon scariosus albifluvis White River beardtongue - Wherever found Withdrawal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (August 06,2014)
Aliciella caespitosa Wonderland Alice-flower - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 12,2006)
Synthliboramphus hypoleucus Xantus'sMurrelet - Wherever found Candidate Removal: Due to the species being in a conservation agreement and the best available information on biological vulnerability and threats is insufficient to support a conclusion that the species warrants listing as a threatened species or an endangered species (September 21,2016)