(DRAFT) - Taxonomy
                        Species MUSSEL, PEARLY, MUCKET, PINK
                                Species Id ESIS404009
                                   Date 13 MAR 96



TAXONOMY

NAME - MUSSEL, PEARLY, MUCKET, PINK OTHER COMMON NAMES - MUSSEL, PEARLY, MUCKET, PINK; MUCKET, PINK; SHELL, ORB and OHIO ELEMENT CODE - CATEGORY - Aquatic Molluscs PHYLUM AND SUBPHYLUM - MOLLUSCA, CLASS AND SUBCLASS - BIVALVIA, ORDER AND SUBORDER - UNIONOIDA, FAMILY AND SUBFAMILY - UNIONIDAE, GENUS AND SUBGENUS - LAMPSILIS, SPECIES AND SSP - ORBICULATA, SCIENTIFIC NAME - LAMPSILIS ORBICULATA AUTHORITY - TAXONOMY REFERENCES - COMMENTS ON TAXONOMY - Pink Mucket Pearly Mussel Lampsilis orbiculata (Hildreth, 1828) KINGDOM: Animal GROUP: Clam PHYLUM: Mollusca CLASS: Bivalvia ORDER: Unionoida FAMILY: Unionidae L. orbiculata is a relatively large inflated species, subovate to subquadrate in outline, attaining a size of roughly 105 mm in length (01,02). The valves are heavy and thick, gaping at the anterio-ventral margin. This species is sexually dimorphic; males have a rounded anterior margin and a somewhat pointed posterior margin whereas females are rounded anteriorly but have an expanded, truncated posterio-ventral area to accomodate the gravid condition (03,04). The posterior ridge is prominent in males, distinct along the dorsal margin (02). Periostracum is smooth with uneven concentric growth lines, yellow to yellow-brown with green rays on young specimens. Beak cavity is deep and umbos are moderately inflated and inclined forward, above the hinge line (01). Adductor muscle scars and pallial line are well impressed. Nacre color varies from white to pink, with the posterior margin iridescent (02). There is some controversy on the taxonomy of this species and its Taxonomy - 1 (DRAFT) - Taxonomy Species MUSSEL, PEARLY, MUCKET, PINK Species Id ESIS404009 Date 13 MAR 96 recognition from species of similar appearance. The description of Unio orbiculatus by Hildreth in 1828 from the Muskingum River, OH does not fit that of L. Orbiculata (01). Hildreth's description may be for Obovaria retusa (04,05) or O. subrotunda (06). The earliest recognizable description for the pink mucket is by Say in 1831 for Unio abruptus. The appropriate binomial for L. orbiculata is therefore L. abrupta (06). L. abrupta resembles L. higginsi very closely, and male pink muckets are difficult to distinguish from Actinonaias carinata. Field identification of L. abrupta, particularly males, is therefore difficult. Detailed descriptions and photographs of L. orbiculata are available in previously published documents (01,02,07). Taxonomy - 2
                                  (DRAFT) - Status
                        Species MUSSEL, PEARLY, MUCKET, PINK
                                Species Id ESIS404009
                                   Date 13 MAR 96



STATUS

Coded Status Alabama; Federal Endangered Alabama; Unofficially Listed Arkansas; Federal Endangered Arkansas; State Recognized Kentucky; Federal Endangered Kentucky; State Recognized Tennessee; Federal Endangered Tennessee; State Listed West Virginia; Federal Endangered West Virginia; State Recognized West Virginia; Unofficially Listed E: Federal Endangered COMMENTS ON STATUS - U.S. STATUSES AND LAWS: The pink mucket pearly mussel (Lampsilis orbiculata) has been designated an Endangered species pursuant to the Endangered Species Act of 1973 (50 CFR 17.11; P.L. 93-205, 87 Stat. 884; 16 U.S.C. 1531-1540), as amended. The species has this status wherever found including the States of AL, AR, IL, IN, KY, MO, PA, TN, and WV. This species is protected by the Lacey Act (P.L. 97-79, as amended; 16 U.S.C. 3371 et seq.) which makes it unlawful to import, export, transport, sell, receive, acquire, or purchase any wild animal (alive or dead including parts, products, eggs, or offspring): (1) in interstate or foreign commerce if taken, possessed, transported or sold in violation of any State law or regulation; or (2) if taken or possessed in violation of any U.S. law, treaty, or regulation or in violation of Indian tribal law. It is also unlawful to possess any wild animal (alive or dead including parts, products, eggs, and offspring) within the U.S. territorial or special maritime jurisdiction (as defined in 18 U.S.C. 7) that is taken, possessed, transported, or sold in violation of any State law or regulation, foreign law, or Indian tribal law. The species is protected by the Migratory Bird Treaty Act (16 U.S.C. 703-711 et seq.; 50 CFR 10.13). RESPONSIBLE FEDERAL AGENCIES: Status - 1 (DRAFT) - Status Species MUSSEL, PEARLY, MUCKET, PINK Species Id ESIS404009 Date 13 MAR 96 USFWS -Responsible for the management/recovery, listing, and law enforcement/protection of this species. DOD (COE) -Responsible for the law enforcement/protection of this species with applicable State and Federal laws on public land under their control. Also responsible for management/recovery on Department of Defense lands. USFS -Responsible for the law enforcement/protection of this species with applicable State and Federal laws on public lands under their control. Also responsible for management/recovery on Forest Service lands. The Forest Service is responsible for integrating management, protection, and conservation of Federally listed species into the Forest Planning process (36 CFR 219.19 and 219.20). Management practices that would cause detrimental changes in water temperature or composition, water course blockage, or sediment deposits within 100 feet of the edges of perennial streams, lakes or other bodies of water are prohibited (36 CFR 219.27(e)). All Federal agencies have responsibility to ensure that any action authorized, funded, or carried out by that agency is not likely to jeopardize the continued existence of the species or result in the destruction or adverse modification of Critical Habitat (50 CFR 402), and to utilize their authorities to carry out programs for the conservation of the species. STATE STATUSES AND LAWS: STATE: Alabama UNOFFICIAL LIST: Endangered, Bulletin No. 2, Alabama Museum of Natural History, Endangered and Threatened Plants and Animals of Alabama. STATE: Arkansas, Indiana, Kentucky, Pennsylvania, and West Virginia DESIGNATED STATUS: Recognized Endangered ADMINISTRATIVE AGENCY: (Arkansas) Game and Fish Commission. (Indiana) Dept. of Natural Resources. (Kentucky) Dept. of Fish and Wildlife Resources. (Pennsylvania) Game Commission. (West Virginia) Dept. of Natural Resour. STATE STATUTES: (Arkansas) Amendment #35 of Arkansas State Constitution, 1945. (Indiana) IN Stat. Annot. 14-2-8.5-1; 310 IN Admin. Code 3-3-6. (Kentucky) Fish and Wildlife, Codes, 150.183. Importing, transporting, or possessing endangered species or wildlife. (Pennsylvania) 58 PA Code, Sec. 147.1 and 147.21, March 1983. Status - 2 (DRAFT) - Status Species MUSSEL, PEARLY, MUCKET, PINK Species Id ESIS404009 Date 13 MAR 96 (West Virginia) Reorganization Plan Numbered 4 of 1970 as cited in App. A of the Limited Authorities Cooperative Agreement with the U.S. Fish and Wildlife Service. STATE: Illinois, Missouri, and Tennessee DESIGNATED STATUS: Endangered ADMINISTRATIVE AGENCY: (Illinois) Department of Conservation. (Missouri) Department of Conservation. (Tennessee) Wildlife Resources Agency. STATE STATUTES: (Illinois) Revised Statute 1983, Chapter 8, Sec. 331-340, P.A. 77-2186. (Missouri) Revised Statute 252.240 Wildlife Code (Regulations) 3CFR10-4.111. (Tennessee) Tennessee Code Ann., Chapter 9, Section 51-901 through 51-912, Proclamations 75-14, 76-4 and amendments. STATE: West Virginia UNOFFICIAL LIST: Federally Endangered, Department of Natural Resources, Wildlife Resources Division, Special Animal List. INTERNATIONAL STATUSES, TREATIES, AND AGREEMENTS: CITES I ECONOMIC STATUSES: There are no known commercial values, however, the species' sedentary nature and filter feeding habits may make it useful as a water quality indicator. It has been shown that mussels accumulate such pollutants as heavy metals and pesticides. 74/10/17:39 FR 37078/37079 - Notice of Review 75/09/26:40 FR 44329/44333 - Proposed Rule 76/06/14:41 FR 24062/24067 - Final Rule, listed as Endangered 76/06/16:41 FR 24367/24378 - Proposal - CITES I 77/02/22:42 FR 10484/10485 - Final - CITES-I 81/02/27:46 FR 14652/14658 - Five year review 87/07/07:52 FR 25523/25528 - Notice of review Status - 3
     

HABITAT ASSOCIATIONS

HABITAT - AQUATIC INLAND AQUATIC LAND USE - Streams and Canals NATIONAL WETLAND INVENTORY CODES NWI NWICLS NWIMOD NWISPEC Riverine, upper perennial UB1 Riverine, upper perennial SB2 Riverine, upper perennial SB1 COMMENTS ON HABITAT ASSOCIATIONS - L. orbiculata is a species found in medium to large rivers. Habitat is characterized by flowing water and substrates that range from silt to boulders, but primarily cobble, gravel, and sand (11,16, 17). The species is most often found in larger rivers with moderate to fast-flowing water, at depths from 0.5 to 8.0 m (01). It has been collected in riffles with strong current (02,18) as well in both standing and flowing water (17). It does not typically occur in the impounded sections of rivers and is apparently quite sedentary in the substrate. Nothing is known about specific environmental requirements for adults or any other life stage. Habitat of the glochidia is initially within the gills of the female, then in the water column, and finally attached to a suitable fish host. any alteration of these life stage-specific habitats during its life cycle would likely affect the long-term success of a population. Habitat requirements or associations for the juvenile stage are unknown. Habitat Associations - 1
                                (DRAFT) - Food Habits
                        Species MUSSEL, PEARLY, MUCKET, PINK
                                Species Id ESIS404009
                                   Date 13 MAR 96



FOOD HABITS

TROPHIC LEVEL - OMNIVORE LIFESTAGE FOOD FOOD PART General Detritus General Bacteria General Phytoplankton General Diatoms General Zooplankton General Fish Food Habits - 1
                         (DRAFT) - Environment Associations
                        Species MUSSEL, PEARLY, MUCKET, PINK
                                Species Id ESIS404009
                                   Date 13 MAR 96



ENVIRONMENTAL ASSOCIATIONS

G = General A = Adult LIM = Limiting RA = Resting Adult J = Juvenile FA = Feeding Adult RJ = Resting Juvenile BA = Breeding Adult FJ = Feeding Juvenile P = Pupae L = Larvae E = Egg RL = Resting Larvae FL = Feeding Larvae
LIFESTAGE ENVIRONMENTAL ASSOCIATIONS G Aquatic Features: Pool areas Environment Associations - 1
                               (DRAFT) - Life History
                        Species MUSSEL, PEARLY, MUCKET, PINK
                                Species Id ESIS404009
                                   Date 13 MAR 96



LIFE HISTORY

FOOD HABITS: There are no known interspecific differences in feeding among freshwater mussels (08). The glochidia are obligate parasites on the gills or fins of fish. Adult mussels are filter-feeders and consume particulate matter suspended in the water column. Identifiable stomach contents almost invariably include mud, desmids, diatoms, other unicellular algae, protozoa, and zooplankters (19,20). No study of the food habits of L. orbiculata has been conducted; required/preferred foods are therefore unknown. HOME RANGE/TERRITORY: Non-territorial. The species is believed to be sedentary during its adult life and generally occurs in rivers with others of its kind. PERIODICITY: No known periodicity. However, other Lampsilis exhibit a seasonal periodicity during spawning. The females are readily visible in the stream bottom with exposed mantle flaps when gravid, and appear to burrow more deeply during the remainder of the year (21). MIGRATION PATTERNS: Non-migratory. COVER/SHELTER REQUIREMENTS: This species occurs in medium to large rivers with various substrate types and moderate to fast velocities (01). No species-specific information on cover/shelter is available in the literature. REPRODUCTIVE SITE REQUIREMENTS: L. orbiculata is a flowing water species that occupies various substrate types in medium to large rivers (01). Since this species is believed to be sedentary and movement is inconsequential, this is the type of environment where all life history processes are carried out, including reproduction. REPRODUCTIVE CHARACTERISTICS: The reproductive cycle of L. orbiculata is presumed to be similar to other freshwater mussels. During spawing, males discharge sperm into the water column, and the sperm are taken in by the females during siphoning. Eggs are fertilized in the female's suprabranchial cavity or gills, which serve as marsupia for embryos developing to the parasitic stage (glochidia). Glochidia are released by the female and must attach to a suitable fish host for metamorphosis to the free-living juvenile stage. The pink mucket is a long-term breeder, spawning in summer and retaining glochidia through fall and winter (01). Females become gravid in August and contain glochidia in September (18,22). Although the sauger and freshwater drum were identified as hosts for L. orbiculata (08), those fish species are tentatively identified hosts Life History - 1 (DRAFT) - Life History Species MUSSEL, PEARLY, MUCKET, PINK Species Id ESIS404009 Date 13 MAR 96 for L. higginsi which he probably considered a synonym. The fish hosts for the pink mucket are unknown. The anatomy of female L. orbiculata is similar to other Lampsilis spp., with a mantle flap that is used during reproduction (22,23). The glochidia are bean-shaped and hookless, and females may contain two sizes when gravid (01,23). PARENTAL CARE: Except for retention of the glochidia within the gills of the female prior to release, no parental care occurs. POPULATION BIOLOGY: No information exists on the population biology of this species. It apparently was never common at any location (01). The species is being taken ("hundreds of fresh dead specimens") by commercial musselmen in the Tennessee and Cumberland Rivers (01). SPECIES INTERRELATIONSHIPS: The required fish hosts for the parasitic glochidia of this species are unknown (01). OTHER LIFE HISTORY DESCRIPTORS: The Cumberland River appears to have a reproducing population and may tolerate the impounded conditions of the Tennessee and Cumberland Rivers (01). Life History - 2
                           (DRAFT) - Management Practices
                        Species MUSSEL, PEARLY, MUCKET, PINK
                                Species Id ESIS404009
                                   Date 13 MAR 96



MANAGEMENT PRACTICES

RESULT MANAGEMENT PRACTICE Beneficial Developing/maintaining stream structures Beneficial Maintaining/Controlling Water Flow Beneficial Controlling/Restricting Mining Beneficial Controlling/Restricting Road Maintainance Actions Beneficial Maintaining undisturbed/undeveloped areas Beneficial Controlling pollution [thermal, chemical, physical] Beneficial Controlling/Restricting Pesticide Use Beneficial Controlling/Restricting Herbicide Use Beneficial Controlling/Restricting Agricultural Practice Beneficial Restricting Timber Harvest Beneficial Controlling/Restricting Noncommercial Harvest Beneficial Regulating commercial harvest levels Adverse Incidental Capturing/Killing Existing Incidental Capturing/Killing Adverse Inherent Reproductive Characteristics Existing Inherent Reproductive Characteristics Adverse Low Gene Pool Existing Low Gene Pool Adverse Underground Mines Existing Underground Mines Adverse Surface Mines Existing Surface Mines Adverse Siltation Existing Siltation Adverse Water Temperature Alteration Existing Water Temperature Alteration Adverse Dissolved Oxygen Reduction Existing Dissolved Oxygen Reduction Adverse Water Level Fluctuation Existing Water Level Fluctuation Adverse Reservoirs Existing Reservoirs Adverse Migration barriers Existing Migration barriers Adverse Dredging Existing Dredging Adverse Applying herbicides Existing Applying herbicides Adverse Applying pesticides Existing Applying pesticides Adverse Environmental Contamination/Pollution Existing Environmental Contamination/Pollution Adverse Exotic/Feral/Introducted Species Existing Exotic/Feral/Introducted Species Adverse Erosion Existing Erosion Adverse Existing Management Practices - 1 (DRAFT) - Management Practices Species MUSSEL, PEARLY, MUCKET, PINK Species Id ESIS404009 Date 13 MAR 96 COMMENTS ON MANAGEMENT PRACTICES - The mussel fauna in most streams of the Tennessee River drainage and other large rivers in the central U.S. have been impacted by dam construction, channelization, siltation, and water pollution, which directly affect all mussel species (08). Creation of impoundments by damming has also altered the species composition of the fish community, thus jeopardizing the reproductive success of some mussel species by eliminating required fish hosts. Although siltation has been suggested as the most significant adverse effect of impoundments on mussels (08), other detrimental factors include lowered water temperatures, pH changes, oxygen depletion, and dewatering of mussel beds below dams (08). Mussel deaths can occur in substrate on which 0.6-2.5 cm of silt has accumulated, resulting in interference with feeding and suffocation (09). The siphoning period and metabolic rate of mussels can also be affected by such contaminants as heavy metals and agricultural chemicals (10). The impact of impoundments and siltation on mussels is documented in the literature (01,11,12,13). Water pollution has probably contributed to the decline of this species. Acid mine drainage in tributaries of the Cumberland River has reduced the diverse mussel assemblage that occurred there (14). Numerous tributaries in the upper Tennessee River drainage were polluted already by the twentieth century, and the mussel fauna was in a decline at that time (15). Coal waste from mining activities in the southeastern U.S. has contributed additional particulate and chemical pollutants. All of the factors above are still considered potential threats to remaining populations of L. orbiculata. Other factors that may also be affecting this species include incidental taking by commercial musselmen (01), invasion of the Asiatic clam (Corbicula fluminea), and the smaller gene pool which may be approaching the minimum population size needed for sufficient genetic variation to respond to environmental changes. Substantial mussel die-offs of unknown origin that have occurred throughout the species' range since 1982 pose a direct threat to the species' survival. APPROVED PLAN: U.S. Fish and Wildlife Service. 1984. Pink Mucket Pearly Mussel Recovery Plan. U.S. Fish and Wildlife Service, Atlanta, GA. 45 pp. Recovery actions for the pink mucket pearly mussel include: (1) Conduct population and habitat surveys to determine the status and range of the species. (2) Identify essential habitat areas in need of protection. Establish and expand mussel sanctuaries where feasible. (3) Determine specific threats faced by the species. Many factors presently affect the species and its habitat. The negative impacts must be identified and remedied if recovery is to be reached. Impacts include impoundments, siltation, and water pollution which may result Management Practices - 2 (DRAFT) - Management Practices Species MUSSEL, PEARLY, MUCKET, PINK Species Id ESIS404009 Date 13 MAR 96 from dam construction, channelization, strip mining, coal washing, dredging, poor agricultural practices, logging, road construction, and sewage waste discharges. (4) Continue to utilize existing legal mechanisms to protect the species and its habitat. (5) Control the illegal take of the species by commercial mussel fishermen. Except for enforcement of regulations, there are no recovery efforts presently underway for this species. Management Practices - 3
                                   (DRAFT) - References
                           Species MUSSEL, PEARLY, MUCKET, PINK
                                  Species Id ESIS404009
                                      Date 13 MAR 96



     

References

***** REFERENCES FOR ALL NARRATIVES EXCEPT N-OCCURRENCE ***** 01 U.S. Fish and Wildlife Service. 1983. Agency Draft Recovery Plan for the Pink Mucket Pearly Mussel, Lampsilis orbiculata (Hildreth, 1828). U.S. Fish and Wildlife Service, Atlanta, GA. 44 pp. 02 Bogan, A.E. and P.W. Parmalee. 1983. Tennessee's rare wildlife Volume II: the molluscs. Tenn. Wildl. Resour. Agency, Tenn. Dep. Conserv, and Tenn. Heritage Prog., Univ. Tenn., Knoxville, TN. 123 pp. 03 Simpson, C.T. 1914. A Descriptive Catalogue of the Naiades, or Pearly Freshwater Mussels. Bryant Walker, Detroit, MI. 1540 pp. 04 Johnson, R.I. 1980. Zoogeography of Morth American Unionacea (Mollusca:Bivalvia) north of the maximum Pleistocene glaciation. Bull. Mus. Comp. Zool. 149. 189 pp. 05 Frierson, L.S. 1927. A Classified and Annotated Checklist of the North American Naiades. Baylor Univ. Press, Waco, TX. 111 pp. 06 Clarke, A.H. 1982. Survey of the freshwater mussels of the upper Kanawha River (RM 91-95), Fayette County, West Virginia, with special reference to Epioblasma torulosa (Rafinesque) and Lampsilis abrupta (Say) (=Lampsilis orbiculata (Hildreth), of authors). Final Rep. U.S. Fish Wild. Serv., Region 5, Newton Corner, MA. 45 pp. 07 Parker, W. and L. Dixon. 1980. Endangered and threatened wildlife of Kentucky, North Carolina, South Carolina, and Tennessee. N.C. Agric. Ext. Serv. 116 pp. 08 Fuller, S.L.H. 1974. Clams and mussels (Mollusca:Bivalvia). Pages 215-273. IN: C.W. Hart and S.L.H. Fuller (eds.). Pollution Ecology of Freshwater Invertebrates. Academic Press, N.Y. 09 Ellix, M.M. 1931. Some factors affecting replacement of the commercial freshwater mussels. U.S. Dep. Comm., Bur. Fish. Circ. No.7. 10 pp. 10 Salanki, J. 1979. Behavioural studies in mussels under changing environmental conditions. Symp. Biol. Hung. 19:169-176. 11 Hickman, M.E. 1937. A contribution to mollusca of east Tennessee. M.S. Thesis, Univ. Tenn., Knoxville, TN. 165 pp. 12 Cahn, A.R. 1936. The molluscan fauna of the Clinch River below Norris Dam upon completion of that structure. Unpublished report. TVA, Norris, TN. 13 Fuller, S.L.H. 1977. Freshwater and terrestrial mollusks. Pages 143-194. IN: J.E. Cooper, S.S. Robinson, and J.B. Funderburg (eds). Endangered and threatened plants and animals of North Carolina. N.C. State Mus. Nat. Hist., Raleigh, NC. 14 Neel, J.K. and W. Allen. 1964. The mussel fauna of the upper Cumberland Basin before its impoundment. Malacologia 1:427-459. 15 Ortmann, A.E. 1918. The nayades (freshwater mussels) of the upper Tennessee drainage with notes on synonymy and distribution. Proc. Am. Phil. Soc., Phila. 57:521-626. 16 Yokley, P., Jr. 1972. Freshwater mussel ecology, Kentucky Lake, Tennessee. Tenn. Game Fish Comm. Proj. 4-46R. 133 pp. 17 Buchanan, A.C. 1980. Mussels (naiades) of the Meramec River basin. Mo. Dep. Conserv. Aquat. Ser. No.17. 68 pp. References - 1 (DRAFT) - References Species MUSSEL, PEARLY, MUCKET, PINK Species Id ESIS404009 Date 13 MAR 96 18 Ortmann, A.E. 1919. A monograph of the naiades of Pennsylvania. Pt.3. Systematic account of the genera and species. Mem. Carnegie Mus. 8:1-389. 19 Coker, R.E., A.F. Shira, H.W. Clark, and A.D. Howard. 1921. Natural history and propagation of fresh-water mussels. Bull. U.S. Bur. Fish. 37:77-181. 20 Churchill, E.P., Jr. and S.I. Lewis. 1924. Food and feeding in freshwater mussels. Bull. U.S. Bur. Fish. 39:439-471. 21 Neves, R.J. 1985. Personal observations. Va. Coop. Fish. Res. Unit, VPI & SU, Blacksburg, VA. 22 Ortmann, A.E. 1912. Notes upon the families and genera of the nayades. Ann. Carnegie Mus. 8:222-365. 23 Ortmann, A.E. 1911. Monograph of the naiades of Pennsylvania. Mem. Carnegie Mus. 4:279-347. ***** REFERENCES FOR N-OCCURRENCE NARRATIVE ONLY ***** 01 U.S. Fish and Wildlife Service. 1983. Agency Draft Recovery Plan for the Pink Mucket Pearly Mussel, Lampsilis orbiculata (Hildreth, 1828). U.S. Fish and Wildlife Service, Atlanta, GA. 44 pp. 02 Ortmann, A.E. 1918. The nayades (freshwater mussels of the upper Tennessee drainage with notes on synonymy and distribution. Proc. Am. Phil. Soc., Phila. 57:521-626. 03 Johnson, R.I. 1980. Zoogeography of Morth American Unionacea (Mollusca:Bivalvia) north of the maximum Pleistocene glaciation. Bull. Mus. Comp. Zool. 149. 189 pp. 04 Ortmann, A.E. 1925. The naiad fauna of the Tennessee River system below Walden Gorge. Am Midl. Nat. 9:321-372. 05 Lewis, J. 1871. On the shells of the Holston River. Am. J. Conchol. 6:216-228. 06 Wilson, C.B. and H.W. Clark. 1914. The mussels of the Cumberland River and its tributaries. U.S. Bur. Fish. Doc. No.781. 63 pp. 07 Shoup, C.S., J.H. Peyton, and G. Gentry. 1941. A limited survey of the Obey River and adjacent streams in Tennessee. Tenn. Dep. Conserv., Div. Game Fish. Misc. Publ. No.3. 76 pp. 08 Call, R.E. 1900. A descriptive illustrated catalogue of the mollusca of Indiana. Ind. Dep. Geol. Nat. Resour. Annu. Rep. 24:335-535. 09 Ortmann, A.E. 1919. A monograph of the naiades of Pennsylvania. Pt.3. Systematic account of the genera and species. Mem. Carnegie Mus. 8:1-389. 10 Taylor, R.W. and R. Hughart. 1981. The freshwater naiads of the Elk River, West Virginia with a comparison of earlier collections. Nautilus 95:21-25. 11 Stansbery, D.H. 1972. A preliminary list of the naiad shells recovered from the Buffalo site. Pages 105-106. IN: B.J. Broyles, A late 17th century Indian village site (46 Pu 31) in Putnam County, West Virginia. Rep. Arch. Inv. No.5, W.V. Geol. Econ. Surv., Morgantown, WV. 12 Baker, F.C. 1906. A catalogue of the mollusca of Illinois. Bull. Ill. State Lab. Nat. Hist. 7:53-136. 13 Wheeler, H.E. 1918. The mollusca of Clark County, Arkansas. References - 2 (DRAFT) - References Species MUSSEL, PEARLY, MUCKET, PINK Species Id ESIS404009 Date 13 MAR 96 Nautilus 31:109-125. 14 Pardue, J.W. 1981. a survey of the mussels (Unionidae) of the upper Tennessee River. Sterkiana 71:41-51. 15 Tennessee Valley Authority (TVA). 1979. An evaluation of mussel populations in the Clinch River, Tennessee and Virginia. Unpublished data. Div. Water Resour., Fish. Aquat. Ecol. Branch, Norris, TN. 14 pp. 16 Parmalee, P.W., W.E. Klippel, and A.E. Bogan. 1980. Notes on the prehistoric and present status of the naiad fauna of the middle Cumberland River, Smith County, Tennessee. Nautilus 94:93-105. 17 U.S. Environmental Protection Agency. 1981. Draft environmental impact statement for Mammoth Cave area, Kentucky. USEPA Region IV, Atlanta, GA. 18 Clarke, A.H. 1982. Survey of the freshwater mussels of the upper Kanawha River (RM 91-95), Fayette County, West Virginia, with special reference to Epioblasma torulosa (Rafinesque) and Lampsilis abrupta (Say) (=Lampsilis orbiculata (Hildreth), of authors). Final Rep. U.S. Fish Wild. Serv., Region 5, Newton Corner, MA. 45 pp. 19 Grace, T.B. and A.C. Buchanan. 1981. Naiades (mussels) of the lower Osage River, Tqavern Creek, and Maries River, Missouri. Mo. Dep. Conserv., U.S. Army Corps Engin. Kansas City, Dist. 147 pp. 20 Buchanan, A.C. 1980. Mussels (naiades) of the Meramec River basin. Mo. Dep. Conserv. Aquat. Ser. No.17. 68 pp. 21 Buchanan, A.C. 1979. Mussels (naiades) of the Little Black River basin in Missouri and Arkansas. U.S. Dep. Agric., Soil Conserv. Serv., Columbia, Mo. 69 pp. 22 Taylor, R.W. 1983. a survey of the freshwater mussels of the Kanawha River. Corps Engin. Huntington Dist., Huntington, WV. 62 pp. 23 Bogan, A.E. and P.W. Parmalee. 1983. Tennessee's rare wildlife Volume II: the molluscs. Tenn. Wildl. Resour. Agency, Tenn. Dep. Conserv, and Tenn. Heritage Prog., Univ. Tenn., Knoxville, TN. 123 pp. 24 Oesch, R.D. 1984. Missouri naiades. A guide to the mussels of Missouri. Mo. Dept. Conserv., Jefferson City, MO. 270 pp. References - 3