Utah Valvata snail (Valvata utahensis)

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

Listing Status:   

General Information

The Utah (desert) valvata snail (Valvata utahensis) is a small freshwater gastropod found primarily in the main stem Snake River of Idaho. The shell has up to four whorls (curls or turns in the shell) and reaches a maximum size of about 4 millimeters. The lifespan of the Utah valvata snail is about one year. Populations of the species vary largely across its range. The Utah valvata snail was listed as an endangered species on December 14, 1992 due to threats from proposed hydroelectric development, operation of existing hydroelectric dams, degraded water quality, diversion of water for irrigation and aquaculture, lack of regulatory protections for spring habitats, and invasion of the introduced New Zealand mudsnail. In 1995 the Service described the distribution of the Utah valvata at Snake River mile 585, just below the Thousand Springs Preserve, to Snake River mile 709, just below American Falls Dam. Recent surveys indicate the species is now known to be more widespread than thought at the time of listing, and it is tolerant of a variety of habitat conditions such as reservoirs, springs and riverine habitats without spring influence. The species occurs on a variety of substrate types, and has been collected at a range of water depths and temperatures. Today, it is known to occur in the Snake River from RM 585 to the confluence of the South Fork and Henry’s Fork, Snake River at RM 837. The species is also known from portions of Box Canyon Creek and the Big Wood River in southern Idaho.

  • States/US Territories in which the Utah Valvata snail is known to or is believed to occur:  Idaho , Utah
  • US Counties in which the Utah Valvata snail is known to or is believed to occur:  View All
 
Current Listing Status Summary
Status Date Listed Lead Region Where Listed
12/14/1992 Pacific Region (Region 1)

» Federal Register Documents

Federal Register Documents
Date Citation Page Title
07/16/2009 74 FR 34539 34548 12-Month Finding on a Petition To Remove the Utah (Desert) Valvata Snail (Valvata utahensis) From the List of Endangered and Threatened Wildlife and Proposed Rule
08/25/2010 75 FR 52272 52282 Removal of the Utah (Desert) Valvata Snail From the Federal List of Endangered and Threatened Wildlife
12/14/1992 57 FR 59244 59257 ETWP; Determination of Endangered or Threatened Status for Five Aquatic Snails in South Central Idaho; 57 FR 59244 59257
06/06/2007 72 FR 31264 31268 90-Day Finding on a Petition To Remove the Utah (Desert) Valvata Snail (Valvata utahensis) from the List of Endangered and Threatened Wildlife
12/18/1990 55 FR 51931 51936 ETWP; Proposed Endangered Status for Five Idaho Aquatic Snails; 55 FR 51931 51936

» Recovery

Other Recovery Documents
Date Citation Page Title Document Type
08/25/2010 75 FR 52272 52282 Removal of the Utah (Desert) Valvata Snail From the Federal List of Endangered and Threatened Wildlife
  • Final Delisting, Original Data in Error - New information discovered
07/16/2009 74 FR 34539 34548 12-Month Finding on a Petition To Remove the Utah (Desert) Valvata Snail (Valvata utahensis) From the List of Endangered and Threatened Wildlife and Proposed Rule
  • Notice 12 month petition finding, Warranted
  • Proposed Delisting, Original Data in Error - Erroneous data
Five Year Review
Date Title
07/13/2009 Utah Valvata 5-Year Review

» Critical Habitat

No critical habitat rules have been published for the Utah Valvata snail.

» Conservation Plans

No conservation plans have been created for Utah Valvata snail.

» 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.