Speckled Dace - Rhinichthys osculusNative Fish
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NANFA 
FishNet 2 
USGS NAS| HUC Code | Watershed Name | Occurrence | Source |
| 13020208 | Plains of San Agustin | Current | NatureServe |
| 14010001 | Colorado Headwaters | Current | NatureServe |
| 14010005 | Colorado Headwaters-Plateau | Current | NatureServe |
| 14010006 | Parachute-Roan | Current | NatureServe |
| 14020002 | Upper Gunnison | Current | NatureServe |
| 14020004 | North Fork Gunnison | Current | NatureServe |
| 14020005 | Lower Gunnison | Current | NatureServe |
| 14020006 | Uncompahange | Current | NatureServe |
| 14030001 | Westwater Canyon | Current | NatureServe |
| 14030002 | Upper Dolores | Current | NatureServe |
| 14030003 | San Miguel | Current | NatureServe |
| 14030004 | Lower Dolores | Current | NatureServe |
| 14030005 | Upper Colorado-Kane Springs | Current | NatureServe |
| 14040101 | Upper Green | Current | NatureServe |
| 14040102 | New Fork | Current | NatureServe |
| 14040103 | Upper Green-Slate | Current | NatureServe |
| 14040104 | Big Sandy | Current | NatureServe |
| 14040105 | Bitter | Current | NatureServe |
| 14040106 | Upper Green-Flaming Gorge Reservoir | Current | NatureServe |
| 14040107 | Blacks Fork | Current | NatureServe |
| 14040108 | Muddy | Current | NatureServe |
| 14040109 | Vermilion | Current | NatureServe |
| 14050001 | Upper Yampa | Current | NatureServe |
| 14050002 | Lower Yampa | Current | NatureServe |
| 14050003 | Little Snake | Current | NatureServe |
| 14050004 | Muddy | Current | NatureServe |
| 14050005 | Upper White | Current | NatureServe |
| 14050006 | Piceance-Yellow | Current | NatureServe |
| 14050007 | Lower White | Current | NatureServe |
| 14060001 | Lower Green-Diamond | Current | NatureServe |
| 14060002 | Ashley-Brush | Current | NatureServe |
| 14060003 | Duchesne | Current | NatureServe |
| 14060004 | Strawberry | Current | NatureServe |
| 14060005 | Lower Green-Desolation Canyon | Current | NatureServe |
| 14060006 | Willow | Current | NatureServe |
| 14060007 | Price | Current | NatureServe |
| 14060008 | Lower Green | Current | NatureServe |
| 14060009 | San Rafael | Current | NatureServe |
| 14070001 | Upper Lake Powell | Current | NatureServe |
| 14070002 | Muddy | Current | NatureServe |
| 14070003 | Fremont | Current | NatureServe |
| 14070004 | Dirty Devil | Current | NatureServe |
| 14070005 | Escalante | Current | NatureServe |
| 14070006 | Lower Lake Powell | Current | NatureServe |
| 14070007 | Paria | Current | NatureServe |
| 14080101 | Upper San Juan | Current | NatureServe |
| 14080102 | Piedra | Current | NatureServe |
| 14080103 | Blanco Canyon | Current | NatureServe |
| 14080104 | Animas | Current | NatureServe |
| 14080105 | Middle San Juan | Current | NatureServe |
| 14080107 | Mancos | Current | NatureServe |
| 14080201 | Lower San Juan-Four Corners | Current | NatureServe |
| 14080202 | Mcelmo | Current | NatureServe |
| 14080203 | Montezuma | Current | NatureServe |
| 14080204 | Chinle | Current | NatureServe |
| 14080205 | Lower San Juan | Current | NatureServe |
| 15010001 | Lower Colorado-Marble Canyon | Current | NatureServe |
| 15010002 | Grand Canyon | Current | NatureServe |
| 15010003 | Kanab | Current | NatureServe |
| 15010005 | Lake Mead | Current | NatureServe |
| 15010006 | Grand Wash | Current | NatureServe |
| 15010008 | Upper Virgin | Current | NatureServe |
| 15010009 | Fort Pierce Wash | Current | NatureServe |
| 15010010 | Lower Virgin | Current | NatureServe |
| 15010011 | White | Current | NatureServe |
| 15010012 | Muddy | Current | NatureServe |
| 15010013 | Meadow Valley Wash | Current | NatureServe |
| 15020001 | Little Colorado Headwaters | Current | NatureServe |
| 15020002 | Upper Little Colorado | Current | NatureServe |
| 15020003 | Carrizo Wash | Historic | NatureServe |
| 15020004 | Zuni | Current | NatureServe |
| 15020005 | Silver | Current | NatureServe |
| 15020006 | Upper Peurco | Current | NatureServe |
| 15020008 | Middle Little Colorado | Current | NatureServe |
| 15020010 | Chevelon Canyon | Current | NatureServe |
| 15020015 | Canyon Diablo | Current | NatureServe |
| 15020016 | Lower Little Colorado | Current | NatureServe |
| 15030101 | Havasu-Mohave Lakes | Current | NatureServe |
| 15030201 | Big Sandy | Current | NatureServe |
| 15030202 | Burro | Current | NatureServe |
| 15030203 | Santa Maria | Current | NatureServe |
| 15040001 | Upper Gila | Current | NatureServe |
| 15040002 | Upper Gila-Mangas | Current | NatureServe |
| 15040004 | San Francisco | Current | NatureServe |
| 15040005 | Upper Gila-San Carlos Reservoir | Current | NatureServe |
| 15040006 | San Simon | Current | NatureServe |
| 15040007 | San Carlos | Current | NatureServe |
| 15050202 | Upper San Pedro | Current | NatureServe |
| 15050203 | Lower San Pedro | Current | NatureServe |
| 15050301 | Upper Santa Cruz | Current | NatureServe |
| 15050302 | Rillito | Current | NatureServe |
| 15060101 | Black | Current | NatureServe |
| 15060102 | White | Current | NatureServe |
| 15060103 | Upper Salt | Current | NatureServe |
| 15060104 | Carrizo | Current | NatureServe |
| 15060105 | Tonto | Current | NatureServe |
| 15060106 | Lower Salt | Current | NatureServe |
| 15060201 | Big Chino-Williamson Valley | Current | NatureServe |
| 15060202 | Upper Verde | Current | NatureServe |
| 15060203 | Lower Verde | Current | NatureServe |
| 15070102 | Aqua Fria | Current | NatureServe |
| 16010101 | Upper Bear | Current | NatureServe |
| 16010102 | Central Bear | Current | NatureServe |
| 16010201 | Bear Lake | Current | NatureServe |
| 16010202 | Middle Bear | Current | NatureServe |
| 16010203 | Little Bear-Logan | Current | NatureServe |
| 16010204 | Lower Bear-Malad | Current | NatureServe |
| 16020101 | Upper Weber | Current | NatureServe |
| 16020102 | Lower Weber | Current | NatureServe |
| 16020201 | Utah Lake | Current | NatureServe |
| 16020202 | Spanish Fork | Current | NatureServe |
| 16020203 | Provo | Current | NatureServe |
| 16020204 | Jordan | Current | NatureServe |
| 16020301 | Hamlin-Snake Valleys | Current | NatureServe |
| 16020302 | Pine Valley | Current | NatureServe |
| 16020303 | Tule Valley | Current | NatureServe |
| 16020305 | Skull Valley | Current | NatureServe |
| 16020306 | Southern Great Salt Lake Desert | Current | NatureServe |
| 16020308 | Northern Great Salt Lake Desert | Current | NatureServe |
| 16030001 | Upper Sevier | Current | NatureServe |
| 16030002 | East Fork Sevier | Current | NatureServe |
| 16030003 | Middle Sevier | Current | NatureServe |
| 16030004 | San Pitch | Current | NatureServe |
| 16030005 | Lower Sevier | Current | NatureServe |
| 16030006 | Escalante Desert | Current | NatureServe |
| 16030007 | Beaver Bottoms-Upper Beaver | Current | NatureServe |
| 16030008 | Lower Beaver | Current | NatureServe |
| 16030009 | Sevier Lake | Current | NatureServe |
| 16040201 | Upper Quinn | Current | NatureServe |
| 16040203 | Smoke Creek Desert | Current | NatureServe |
| 16040204 | Massacre Lake | Current | NatureServe |
| 16050101 | Lake Tahoe | Current | NatureServe |
| 16050102 | Truckee | Current | NatureServe |
| 16050201 | Upper Carson | Current | NatureServe |
| 16050301 | East Walker | Current | NatureServe |
| 16050302 | West Walker | Current | NatureServe |
| 16060004 | Northern Big Smoky Valley | Current | NatureServe |
| 16060005 | Diamond-Monitor Valleys | Current | NatureServe |
| 16060007 | Long-Ruby Valleys | Current | NatureServe |
| 17010214 | Pend Oreille Lake | Current | NatureServe |
| 17010216 | Pend Oreille | Current | NatureServe |
| 17010301 | Upper Coeur D Alene | Current | NatureServe |
| 17010304 | St. Joe | Current | NatureServe |
| 17010305 | Upper Spokane | Current | NatureServe |
| 17010306 | Hangman | Current | NatureServe |
| 17010307 | Lower Spokane | Current | NatureServe |
| 17010308 | Little Spokane | Current | NatureServe |
| 17020001 | Franklin D. Roosevelt Lake | Current | NatureServe |
| 17020002 | Kettle | Current | NatureServe |
| 17020003 | Colville | Current | NatureServe |
| 17020004 | Sanpoil | Current | NatureServe |
| 17020005 | Chief Joseph | Current | NatureServe |
| 17020006 | Okanogan | Current | NatureServe |
| 17020008 | Methow | Current | NatureServe |
| 17020010 | Upper Columbia-Entiat | Current | NatureServe |
| 17020011 | Wenatchee | Current | NatureServe |
| 17020012 | Moses Coulee | Current | NatureServe |
| 17020013 | Upper Crab | Current | NatureServe |
| 17020014 | Banks Lake | Current | NatureServe |
| 17020015 | Lower Crab | Current | NatureServe |
| 17020016 | Upper Columbia-Priest Rapids | Current | NatureServe |
| 17030001 | Upper Yakima | Current | NatureServe |
| 17030002 | Naches | Current | NatureServe |
| 17030003 | Lower Yakima | Current | NatureServe |
| 17040101 | Snake Headwaters | Current | NatureServe |
| 17040102 | Gros Ventre | Current | NatureServe |
| 17040103 | Greys-Hobock | Current | NatureServe |
| 17040104 | Palisades | Current | NatureServe |
| 17040105 | Salt | Current | NatureServe |
| 17040201 | Idaho Falls | Current | NatureServe |
| 17040202 | Upper Henrys | Current | NatureServe |
| 17040203 | Lower Henrys | Current | NatureServe |
| 17040205 | Willow | Current | NatureServe |
| 17040206 | American Falls | Current | NatureServe |
| 17040207 | Blackfoot | Current | NatureServe |
| 17040208 | Portneuf | Current | NatureServe |
| 17040209 | Lake Walcott | Current | NatureServe |
| 17040210 | Raft | Current | NatureServe |
| 17040211 | Goose | Current | NatureServe |
| 17040212 | Upper Snake-Rock | Current | NatureServe |
| 17040214 | Beaver-Camas | Current | NatureServe |
| 17040219 | Big Wood | Current | NatureServe |
| 17040220 | Camas | Current | NatureServe |
| 17040221 | Little Wood | Current | NatureServe |
| 17050101 | C. J. Idaho | Current | NatureServe |
| 17050102 | Bruneau | Current | NatureServe |
| 17050103 | Middle Snake-Succor | Current | NatureServe |
| 17050106 | East Little Owyhee | Current | NatureServe |
| 17050107 | Middle Owyhee | Current | NatureServe |
| 17050108 | Jordan | Current | NatureServe |
| 17050109 | Crooked-Rattlesnake | Current | NatureServe |
| 17050110 | Lower Owyhee | Current | NatureServe |
| 17050111 | North and Middle Forks Boise | Current | NatureServe |
| 17050112 | Boise-Mores | Current | NatureServe |
| 17050114 | Lower Boise | Current | NatureServe |
| 17050115 | Middle Snake-Payette | Current | NatureServe |
| 17050116 | Upper Malheur | Current | NatureServe |
| 17050117 | Lower Malheur | Current | NatureServe |
| 17050118 | Bully | Current | NatureServe |
| 17050119 | Wiilow | Current | NatureServe |
| 17050120 | South Fork Payette | Current | NatureServe |
| 17050123 | North Fork Payette | Current | NatureServe |
| 17050124 | Weiser | Current | NatureServe |
| 17050201 | Brownlee Reservoir | Current | NatureServe |
| 17050202 | Burnt | Current | NatureServe |
| 17050203 | Powder | Current | NatureServe |
| 17060101 | Hells Canyon | Current | NatureServe |
| 17060102 | Imnaha | Current | NatureServe |
| 17060103 | Lower Snake-Asotin | Current | NatureServe |
| 17060104 | Upper Grande Ronde | Current | NatureServe |
| 17060105 | Wallowa | Current | NatureServe |
| 17060106 | Lower Grande Ronde | Current | NatureServe |
| 17060107 | Lower Snake-Tucannon | Current | NatureServe |
| 17060108 | Palouse | Current | NatureServe |
| 17060109 | Rock | Current | NatureServe |
| 17060110 | Lower Snake | Current | NatureServe |
| 17060201 | Upper Salmon | Current | NatureServe |
| 17060203 | Middle Salmon-Panther | Current | NatureServe |
| 17060208 | South Fork Salmon | Current | NatureServe |
| 17060210 | Little Salmon | Current | NatureServe |
| 17060301 | Upper Selway | Current | NatureServe |
| 17060302 | Lower Selway | Current | NatureServe |
| 17060303 | Lochsa | Current | NatureServe |
| 17060304 | Middle Fork Clearwater | Current | NatureServe |
| 17060305 | South Fork Clearwater | Current | NatureServe |
| 17060306 | Clearwater | Current | NatureServe |
| 17060307 | Upper North Fork Clearwater | Current | NatureServe |
| 17060308 | Lower North Fork Clearwater | Current | NatureServe |
| 17070101 | Middle Columbia-Lake Wallula | Current | NatureServe |
| 17070102 | Walla Walla | Current | NatureServe |
| 17070103 | Umatilla | Current | NatureServe |
| 17070104 | Willow | Current | NatureServe |
| 17070105 | Middle Columbia-Hood | Current | NatureServe |
| 17070106 | Klickitat | Current | NatureServe |
| 17070201 | Upper John Day | Current | NatureServe |
| 17070202 | North Fork John Day | Current | NatureServe |
| 17070203 | Middle Fork John Day | Current | NatureServe |
| 17070204 | Lower John Day | Current | NatureServe |
| 17070301 | Upper Deschutes | Current | NatureServe |
| 17070303 | Beaver-South Fork | Current | NatureServe |
| 17070304 | Upper Crooked | Current | NatureServe |
| 17070305 | Lower Crooked | Current | NatureServe |
| 17070306 | Lower Deschutes | Current | NatureServe |
| 17070307 | Trout | Current | NatureServe |
| 17080001 | Lower Columbia-Sandy | Current | NatureServe |
| 17080002 | Lewis | Current | NatureServe |
| 17080003 | Lower Columbia-Clatskanie | Current | NatureServe |
| 17080004 | Upper Cowlitz | Current | NatureServe |
| 17080005 | Lower Cowlitz | Current | NatureServe |
| 17080006 | Lower Columbia | Current | NatureServe |
| 17090001 | Middle Fork Willamette | Current | NatureServe |
| 17090002 | Coast Fork Willamette | Current | NatureServe |
| 17090003 | Upper Willamette | Current | NatureServe |
| 17090004 | Mckenzie | Current | NatureServe |
| 17090005 | North Santiam | Current | NatureServe |
| 17090006 | South Santiam | Current | NatureServe |
| 17090007 | Middle Willamette | Current | NatureServe |
| 17090008 | Yamhill | Current | NatureServe |
| 17090009 | Molalla-Pudding | Current | NatureServe |
| 17090010 | Tualatin | Current | NatureServe |
| 17090011 | Clackamas | Current | NatureServe |
| 17090012 | Lower Willamette | Current | NatureServe |
| 17100101 | Hoh-Quillayute | Current | NatureServe |
| 17100102 | Queets-Quinault | Current | NatureServe |
| 17100103 | Upper Chehalis | Current | NatureServe |
| 17100104 | Lower Chehalis | Current | NatureServe |
| 17100105 | Grays Harbor | Current | NatureServe |
| 17100106 | Willpa Bay | Current | NatureServe |
| 17100204 | Siletz-Yaquina | Current | NatureServe |
| 17100205 | Alsea | Current | NatureServe |
| 17100206 | Siuslaw | Current | NatureServe |
| 17100207 | Siltcoos | Current | NatureServe |
| 17100301 | North Umpqua | Current | NatureServe |
| 17100302 | South Umpqua | Current | NatureServe |
| 17100303 | Umpqua | Current | NatureServe |
| 17100304 | Coos | Current | NatureServe |
| 17100305 | Coquille | Current | NatureServe |
| 17100306 | Sixes | Current | NatureServe |
| 17100307 | Upper Rouge | Current | NatureServe |
| 17100308 | Middle Rouge | Current | NatureServe |
| 17100309 | Applegate | Current | NatureServe |
| 17100310 | Lower Rouge | Current | NatureServe |
| 17100311 | Illinois | Current | NatureServe |
| 17110010 | Snoqualmie | Current | NatureServe |
| 17110012 | Lake Washington | Current | NatureServe |
| 17110013 | Duwamish | Current | NatureServe |
| 17110014 | Puyallup | Current | NatureServe |
| 17110015 | Nisqually | Current | NatureServe |
| 17110016 | Deschutes | Current | NatureServe |
| 17110017 | Skokomish | Current | NatureServe |
| 17110019 | Puget Sound | Current | NatureServe |
| 17120001 | Harney-Malheur Lakes | Current | NatureServe |
| 17120002 | Silvies | Current | NatureServe |
| 17120003 | Donner and Blitzen | Current | NatureServe |
| 17120004 | Silver | Current | NatureServe |
| 17120005 | Summer Lake | Current | NatureServe |
| 17120006 | Lake Abert | Current | NatureServe |
| 17120007 | Warner Lakes | Current | NatureServe |
| 17120008 | Guano | Current | NatureServe |
| 18010101 | Smith | Current | NatureServe |
| 18010201 | Willamson | Current | NatureServe |
| 18010202 | Sprague | Current | NatureServe |
| 18010203 | Upper Klamath Lake | Current | NatureServe |
| 18010204 | Lost | Current | NatureServe |
| 18010205 | Butte | Current | NatureServe |
| 18010206 | Upper Klamath | Current | NatureServe |
| 18010207 | Shasta | Current | NatureServe |
| 18010208 | Scott | Current | NatureServe |
| 18010209 | Lower Klamath | Current | NatureServe |
| 18010210 | Salmon | Current | NatureServe |
| 18010211 | Trinity | Current | NatureServe |
| 18010212 | South Fork Trinity | Current | NatureServe |
| 18020001 | Goose Lake | Current | NatureServe |
| 18020002 | Upper Pit | Current | NatureServe |
| 18020003 | Lower Pit | Current | NatureServe |
| 18020004 | McCloud | Current | NatureServe |
| 18020005 | Sacramento Headwaters | Current | NatureServe |
| 18020101 | Sacramento-Lower Cow-Lower Clear | Current | NatureServe |
| 18020102 | Lower Cottonwood | Current | NatureServe |
| 18020103 | Sacramento-Lower Thomes | Current | NatureServe |
| 18020104 | Sacramento-Stone Corral | Current | NatureServe |
| 18020105 | Lower Butte | Current | NatureServe |
| 18020106 | Lower Feather | Current | NatureServe |
| 18020107 | Lower Yuba | Current | NatureServe |
| 18020108 | Lower Bear | Current | NatureServe |
| 18020109 | Lower Sacramento | Current | NatureServe |
| 18020110 | Lower Cache | Current | NatureServe |
| 18020111 | Lower American | Current | NatureServe |
| 18020112 | Sacramento-Upper Clear | Current | NatureServe |
| 18020113 | Cottonwood Headwaters | Current | NatureServe |
| 18020114 | Upper Elder-Upper Thomes | Current | NatureServe |
| 18020115 | Upper Stony | Current | NatureServe |
| 18020116 | Upper Cache | Current | NatureServe |
| 18020117 | Upper Putah | Current | NatureServe |
| 18020118 | Upper Cow-Battle | Current | NatureServe |
| 18020119 | Mill-Big Chico | Current | NatureServe |
| 18020120 | Upper Butte | Current | NatureServe |
| 18020121 | North Fork Feather | Current | NatureServe |
| 18020122 | East Branch North Fork Feather | Current | NatureServe |
| 18020123 | Middle Fork Feather | Current | NatureServe |
| 18020124 | Honcut Headwaters | Current | NatureServe |
| 18020125 | Upper Yuba | Current | NatureServe |
| 18020126 | Upper Bear | Current | NatureServe |
| 18020127 | Upper Coon-Upper Auburn | Current | NatureServe |
| 18020128 | North Fork American | Current | NatureServe |
| 18020129 | South Fork American | Current | NatureServe |
| 18030011 | Upper Los Gatos-Avenal | Current | NatureServe |
| 18040003 | San Joaquin Delta | Current | NatureServe |
| 18040004 | Lower Calaveras-Mormon Slough | Current | NatureServe |
| 18040005 | Lower Consumnes-Lower Mokelumne | Current | NatureServe |
| 18040010 | Upper Stanislaus | Current | NatureServe |
| 18040011 | Upper Calaveras | Current | NatureServe |
| 18040012 | Upper Mokelumne | Current | NatureServe |
| 18040013 | Upper Consumnes | Current | NatureServe |
| 18050003 | Coyote | Current | NatureServe |
| 18050004 | San Francisco Bay | Current | NatureServe |
| 18060002 | Pajaro | Current | NatureServe |
| 18060005 | Salinas | Current | NatureServe |
| 18060007 | Cuyama | Current | NatureServe |
| 18070105 | Los Angeles | Current | NatureServe |
| 18070106 | San Gabriel | Current | NatureServe |
| 18070203 | Santa Ana | Current | NatureServe |
| 18080001 | Suprise Valley | Current | NatureServe |
| 18080002 | Madeline Plains | Current | NatureServe |
| 18080003 | Honey-Eagle Lakes | Current | NatureServe |
| 18090102 | Crowley Lake | Current | NatureServe |
| 18090103 | Owens Lake | Current | NatureServe |
| 18090202 | Upper Amargosa | Current | NatureServe |
| 18090203 | Death Valley-Lower Amargosa | Current | NatureServe |
| 18090205 | Indian Wells-Searles Valleys | Historic | NatureServe |
Citation:
FishMap.org. 2025. Speckled Dace - Rhinichthys osculus. Available online at http://fishmap.org/species/Speckled-Dace.html - last accessed September 9, 2025.
FishMap.org. 2025. Speckled Dace - Rhinichthys osculus. Available online at http://fishmap.org/species/Speckled-Dace.html - last accessed September 9, 2025.
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Change Log
- 02/05/2024 10:01:04
Fixed issue with GBIF data being returned in eventDate field.
- 11/20/2018 11:35:34
Added iDigBio.org collection data to species maps.
- 11/15/2018 15:19:23
Added GBIF.org collection data to species maps.
- 09/20/2018 21:25:13
Started caching Fish Net 2 data. Hopefully this helps with some of the performance issues and loads.
- 09/14/2017 11:15:00
Fixed an issue preventing users from submitting records. Sorry for the inconvience! Please try again.
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