Truncilla cognata (Lea, 1860)
Taxonomy & Nomenclature
Synonym/s: Unio cognatus Lea, 1860; Truncilla cognate (Lea, 1860)
Last record: 1975
Texas, USA & Nuevo Leon, Mexico
Biology & Ecology
Brewster, B. E. 2015. Conservation status and habitat assessment of the Mexican Fawnsfoot (Truncilla cognata) in the Rio Grande. MS thesis, Texas A&M International, Laredo, Texas.
Lyubov E. Burlakova, David Campbell, and Alexander Y. Karatayev. (2019). Status of Rare Endemic Species: Molecular Phylogeny, Distribution and Conservation of Freshwater Molluscs Truncilla macrodon and Truncilla cognata in Texas. Malacologia 62(2): 345-363. [Abstract]
Burlakova, L.E., A.Y. Karatayev, V.A. Karatayev, M.E. May, D.L. Bennett, and M.J. Cook. 2011. Endemic species: contribution to community uniqueness, effect of habitat alteration, and conservation priorities. Biological Conservation 144(1):155-165.
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Graf, Daniel L. and Cummings, Kevin S. (2021). A ‘big data’ approach to global freshwater mussel diversity (Bivalvia: Unionoida), with an updated checklist of genera and species. Journal of Molluscan Studies 87(1): eyaa034.
Howard, A.D. 1915. Some exceptional cases of breeding among the Unionidae. The Nautilus 29:4-11.
Howells, R.G. 1994. Distributional surveys of freshwater mussels bivalves in Texas: progress report for 1992. Texas Parks and Wildlife Department, Management Data Series 105, Austin, Texas.
Howells, R.G. 1995. Distributional surveys of freshwater mussels bivalves in Texas: progress report for 1993. Texas Parks and Wildlife Department, Management Data Series 119, Austin, Texas.
Howells, R.G. 1996a. Distributional surveys of freshwater mussels bivalves in Texas: progress report for 1994. Texas Parks and Wildlife Department, Management Data Series 120, Austin, Texas.
Howells, R.G. 1996b. Distributional surveys of freshwater mussels bivalves in Texas: progress report for 1995. Texas Parks and Wildlife Department, Management Data Series 125: Austin, Texas.
Howells, R.G. 1997c. Distributional surveys of freshwater mussels bivalves in Texas: progress report for 1996. Texas Parks and Wildlife Department, Management Data Series 144: Austin, Texas.
Howells, R.G. 1998. Distributional surveys of freshwater mussels bivalves in Texas: progress report for 1997. Texas Parks and Wildlife Department, Management Data Series 147: Austin, Texas.
Howells, R.G. 1999. Recent freshwater mussel surveys of the Rio Grande and Big Bend region. Triannual Unionid Report, 17: unpaginated.
Howells, R.G. 2000. Recent freshwater-mussel surveys of the Rio Grande, Texas and Mexico. Triannual Unionid Report, 19: unpaginated.
Howells, R.G. 2004. Last stand for mussels of the Rio Bravo? Eye on Nature (Texas Parks and Wildlife), spring, 2004: 2.
Howells, R.G., C.M. Mather, and J.A.M. Bergmann. 1997. Conservation status of selected freshwater mussels in Texas. Pages 117-126 in K. S. Cummings, A. C. Buchanan, C. A. Mayer, and T. J. Naimo. Conservation and Management of Freshwater Mussels II: initiatives for the future, Proceedings of a UMRCC Symposium, 16-18 October, 1995, St. Louis, Missouri. Upper Mississippi River Conservation Committee, Rock Island, Illinois.
Howells, R.G., R.W. Neck, and H.D. Murray. 1996. Freshwater Mussels of Texas. Texas Parks and Wildlife Press: Austin, Texas. 218 pp.
Johnson, R.I. 1999. Unionidae of the Rio Grande (Rio Bravo del Norte) system of Texas and Mexico. Occasional Papers on Mollusks, 6(77): 1-65.
Karatayev, A.Y., T.D. Miller, and L.E. Burlakova. 2012. Long-term changes in unionid assemblages in the Rio Grande, one of the World's top 10 rivers at risk. Aquatic Conservation: Marine and Freshwater Ecosystems 22:206-219.
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Neves, R.J. 1993. A state-of-the unionid address. Pages 1-10 in K.S. Cummings, A.C. Buchanan, and L.M. Koch (eds.) Conservation and management of freshwater mussels. Proceedings of a UMRCC symposium, October 1992, St. Louis, Missouri. Upper Mississippi River Conservation Committee, Rock Island, Illinois.
Neves, R.J. and J.C. Widlak. 1987. Habitat ecology of juvenile freshwater mussels (Bivalvia: Unionidae) in a headwater stream in Virginia. American Malacological Bulletin, 5: 1-7.
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Simpson, C.T. 1914. A Descriptive Catalogue of the Naiades or Pearly Fresh-water Mussels. Bryant Walker: Detroit, Michigan. 1540 pp.
Strayer, D. 1983. The effects of surface geology and stream size on freshwater mussel (Bivalvia, Unionidae) distribution in southeastern Michigan, U.S.A. Freshwater Biology 13:253-264.
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U.S. Fish and Wildlife Service (USFWS). 2016. Review of Native Species that are Candidates for Listing as Endangered or Threatened; Annual Notification of Findings on Resubmitted Petitions; Annual Description of Progress on Listing Actions. Federal Register 81(232): 87246-87272.
Van der Schalie, H. 1938a. The naiad fauna of the Huron River in southeastern Michigan. Miscellaneous Publication of the Museum of Zoology, University of Michigan 40:7-78. [relevant reference?]
Watters, G.T. 1992a. Unionids, fishes, and the species-area curve. Journal of Biogeography 19:481-490.
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Williams, James D., Melvin L. Warren, Kevin S. Cummings, John L. Harris, and Richard J. Neves. (1993). Conservation status of the freshwater mussels of the United States and Canada. Fisheries, vol. 18, no. 9: 6-22.