Management Recommendations: Mollusks

General Information

• Amendments to Survey and Manage Management Recommendations Designed to Facilitate Certain National Fire Plan Activities - Second Group: Red Tree-Vole, Certain Mollusks and Amphibians - 2003 (PDF)
• Applies to the following species:
• Helminthoglypta hertleini, Oregon Shoulderband Snail
• Helminthoglypta talmadgei, Trinity Shoulderband Snail
• Monadenia chaceana, Siskiyou Sideband Snail
• Monadenia fidelis minor, Dalles Sideband Snail
• Monadenia troglodytes troglodytes, Shasta Sideband Snail
• Monadenia troglodytes wintu, Wintu Sideband Snail
• Prophysaon coeruleum, Blue-Gray Taildropper Slug
• Vespericola Shasta, Shasta Hesperian Snail
• Megomphix hemphilli, Oregon megomphix Snail
• Oreohelix n. species, snail
• Pristiloma arcticum crateris, Crater Lake Tightcoil Snail
• Attachment 1 - Survey and Manage Management Recommendation Amendments for Fuel Hazard Reduction Treatments Around At-Risk Communities (Group 2) (PDF)
• Attachment 2 - Survey and Manage Additional Clarifying Questions and Answers (Group 2) About MR Amendments for Fuel Hazard Reduction Treatments Around At-Risk Communities (PDF)
• Attachment 3 - Taxa Leads and Experts Contact List (PDF)
• Attachment 4 - Map of Washington Showing General application area (PDF)
• Attachment 5 - Map of California Showing General Application Area (PDF)
• Attachment 6 - Map of Oregon Showing General Application Area (PDF)
• IM-OR-2000-003 - Terrestrial Mollusks (PDF)
  • Attachment 1 - Management Recommendations for Survey and Manage Terrestrial Mollusks (PDF)
• IM-OR-2000-015 - Terrestrial Mollusks (PDF)
• Applies to the following species:
• Cryptomastix devia
• Megomphix hemphilli
• Prophysaon coeruleum
• Prophysaon dubium
• Attachment 1 - Management Recommendations for Terrestrial Mollusk Species: Cryptomastix devia, the Puget Oregonian (PDF)
• Attachment 2 - Management Recommendations for Terrestrial Mollusk Species: Megomphix hemphilli, the Oregon Megomphix (PDF)
• Attachment 3 - Management Recommendations for Terrestrial Mollusk Species: Prophysaon coeruleum, Blue-Gray Taildropper, & Prophysaon dubium, Papillose Taildropper (PDF)
• IM-OR-99-038 - Aquatic Mollusks (PDF)
  • Attachment 1 - Management Recommendations (PDF)
  • Attachment 2 - General Guidance for Use of Survey & Manage Management Recommendations (PDF)

Individual Species, Aquatic Mollusks

Colligyrus convexus, Canary Duskysnail (previously Lyogyrus n. sp. 3)

• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 1, Klamath Pebblesnail

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 2, Tall Pebblesnail

• Conservation Assessment for Species Associated with Springs and Spring Runs - 2005 (PDF)
• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 3, Klamath Rim Pebblesnail

• Conservation Assessment for Species Associated with Springs and Spring Runs - 2005 (PDF)
• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 11, Fredenburg Pebblesnail

• Conservation Assessment for Species Associated with Springs and Spring Runs - 2005 (PDF)
• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 15, Flat-Top Pebblesnail

• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 16, Shasta Pebblesnail

• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 17, Disjunct Pebblesnail

• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 18, Globular Pebblesnail

• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola n. sp. 20, Lost Creek Pebblesnail

• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola seminalis, Nugget Pebblesnail

• Management Recommendations for Aquatic Mollusks - 1998

Fluminicola umbilicatus, Umbilicate Pebblesnail

• Management Recommendations for Aquatic Mollusks - 1998

Juga (o) n. sp. 2, Basalt Juga

• Conservation Assessment for Species Associated with Springs and Spring Runs - 2005 (PDF)
• Management Recommendations for Aquatic Mollusks - 1998

Juga (o) n. sp. 3, Cinnamon Juga

• Management Recommendations for Aquatic Mollusks - 1998

Lyogyrus n. sp. 1, Columbia Duskysnail

• Conservation Assessment for Species Associated with Springs and Spring Runs - 2005 (PDF)
• Management Recommendations for Aquatic Mollusks - 1998

Lyogyrus n. sp. 2, Washington Duskysnail

• Conservation Assessment - 2005 (PDF)

Vorticifex klamathensis sinitsini, Sinitsin Rams-Horn

• Conservation Assessment for Species Associated with Springs and Spring Runs - 2005 (PDF)
• Management Recommendations for Aquatic Mollusks - 1998

Vorticifex n. sp. 1, Knobby Rams-Horn

• Management Recommendations for Aquatic Mollusks - 1998

Individual Species, Terrestrial Mollusks

Ancotrema voyanum, Hooded Lancetooth

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Cryptomastix devia, Puget Oregonian

• Conservation Assessment - 2005 (PDF)
• Management Recommendations - 2000

Cryptomastix hendersoni, Columbia Gorge Oregonian

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Deroceras hesperium, Evening Fieldslug

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Helminthoglypta hertleini, Oregon Shoulderband

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Helminthoglypta talmadgei, Trinity Shoulderband

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Hemphillia burringtoni, Keeled Jumping-Slug

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Hemphillia glandulosa, Warty Jumping-Slug

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Hemphillia malonei, Malone Jumping-Slug

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Hemphillia pantherina, Panther Jumping-Slug

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Megomphix hemphilli, Oregon Megomphix (South of south boundary of Lincoln, Benton, and Linn Counties, Oregon)

• Management Recommendations - 2000

Megomphix hemphilli, Oregon Megomphix (North of south boundary of Lincoln, Benton, and Linn Counties, Oregon)

• Management Recommendations - 2000

Monadenia chaceana, Chace Sideband

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Monadenia churchi, Church's Sideband

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Monadenia fidelis minor, Dalles Sideband

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Monadenia infumata ochromphalus, Yellow-Base Sideband (previously Monadenia fidelis)

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Monadenia troglodytes troglodytes, Shasta Sideband

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Monadenia troglodytes wintu, Wintu Sideband

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Oreohelix sp. nov., Chelan Mountainsnail

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Pristiloma arcticum crateris, Crater Lake Tightcoil

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)
• Species Fact Sheet - 2010

Prophysaon coeruleum, Blue-Gray Taildropper (In California and Washington)

• Conservation Assessment - 2005 (PDF)

Trilobopsis roperi, Shasta Chaparral

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Trilobopsis tehamana, Tehama Chaparral

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Vertigo n. sp., Hoko Vertigo

• Conservation Assessment - 2005 (PDF)
• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Vespericola pressleyi, Big Bar Hesperian

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)

Vespericola shasta, Shasta Hesperian

• Management Recommendations for Terrestrial Mollusks - 1999 (PDF)