Rhinichthys osculus oligoporus
Hubbs and Miller, 1972
Clover Valley Speckled Dace
Identity
Unique IDELEMENT_GLOBAL.2.106400
Element CodeAFCJB37056
Record TypeSPECIES
ClassificationSubspecies
Classification StatusStandard
Name CategoryVertebrate Animal
Endemicendemic to a single state or province
KingdomAnimalia
PhylumCraniata
ClassActinopterygii
OrderCypriniformes
FamilyLeuciscidae
GenusRhinichthys
Concept ReferenceHubbs, C. L. and R. R. Miller. 1972. Diagnoses of new Cyprinid fishes of isolated waters in the Great Basin of western North America. Transactions of the San Diego Society of Natural History 17(8):101-106.
Taxonomic CommentsIndependence Valley and Clover Valley speckled dace are distinguished from the Lahontan speckled dace by their less developed lateral line system on both the body and the head. The Independence Valley speckled dace is further distinguished from the Clover Valley speckled dace by a more laterally compressed body, a deeper caudal peduncle, fewer pectoral fin rays, and a straighter and more oblique mouth (Hubbs and Miller 1972).
Conservation Status
Review Date1996-03-01
Change Date1996-03-01
Edition Date2010-11-30
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences1 - 5
Rank ReasonsOccurs in a few sites in the Clover Valley, Nevada; stable population; irrigation-related habitat alteration and introduced fishes have been the primary problems.
Range Extent CommentsClover Valley Warm Springs, Bradish Springs, and Wright Spring, in Clover Valley, Elko County, Nevada.
Occurrences CommentsOccurs in three spring systems (USFWS 1997).
Threat Impact CommentsAdversely affected by habitat alterations to facilitate irrigation and by the introduction of non-native fishes; some of the springs have been ditched and impounded.
Ecology & Habitat
Habitat
Springs and outflows.
Other Nations (1)
United StatesN1
| Province | Rank | Native |
|---|
| Nevada | S1 | Yes |
Roadless Areas (11)
South Dakota (1)
| Area | Forest | Acres |
|---|
| Indian Creek | Buffalo Gap National Grassland | 24,666 |
References (8)
- Deacon, J. E., and J. E. Williams. 1984. Annotated list of the fishes of Nevada. Proceedings of the Biological Society of Washington 97(1):103-118.
- Hubbs, C. L. and R. R. Miller. 1972. Diagnoses of new Cyprinid fishes of isolated waters in the Great Basin of western North America. Transactions of the San Diego Society of Natural History 17(8):101-106.
- Jelks, H. L., S. J. Walsh, N. M. Burkhead, S. Contreras-Balderas, E. Díaz-Pardo, D. A. Hendrickson, J. Lyons, N. E. Mandrak, F. McCormick, J. S. Nelson, S. P. Platania, B. A. Porter, C. B. Renaud, J. Jacobo Schmitter-Soto, E. B. Taylor, and M.L. Warren, Jr. 2008. Conservation status of imperiled North American freshwater and diadromous fishes. Fisheries 33(8):372-407.
- Lee, D. S., C. R. Gilbert, C. H. Hocutt, R. E. Jenkins, D. E. McAllister, and J. R. Stauffer, Jr. 1980. Atlas of North American freshwater fishes. North Carolina State Museum of Natural History, Raleigh, North Carolina. i-x + 854 pp.
- Page, L. M., and B. M. Burr. 2011. Peterson field guide to freshwater fishes of North America north of Mexico. Second edition. Houghton Mifflin Harcourt, Boston. xix + 663 pp.
- U.S. Fish and Wildlife Service (USFWS). 1989. Determination of endangered status for the Independence Valley speckled dace and Clover Valley speckled dace. Federal Register 54(194):41448-53.
- U.S. Fish and Wildlife Service (USFWS). 1990. Endangered and threatened species recovery program: report to Congress. 406 pp.
- U.S. Fish and Wildlife Service (USFWS). 1998. Recovery plan for the endangered speckled dace of Clover and Independence valleys (<i>Rhinichthys osculus lethoporus</i> and <i>Rhinichthys osculus oligoporus</i>). USFWS, Portland, Oregon. vii + 50 pp.