Epioblasma Penita
''Epioblasma penita'', the southern combshell or penitent mussel, is a species of freshwater mussel, an aquatic animal, aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is Endemism, endemic to the United States. Its natural habitat is rivers. It is threatened by habitat loss. References

Molluscs of the United States Epioblasma, penita Bivalves described in 1834 Taxa named by Timothy Abbott Conrad ESA endangered species Taxonomy articles created by Polbot {{Unionidae-stub ...
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Timothy Abbott Conrad
Timothy Abbott Conrad (June 21, 1803 in Trenton, New Jersey – August 9, 1877 in Trenton) was an American geologist and malacologist. Biography He was from early life an investigator of American paleontology and natural history, devoting himself to the study of the shells of the Tertiary and Cretaceous formations, and to existing species of mollusks. In 1831 he began the issue of a work on “American Marine Conchology,” and the year following published the first number of his “Fossil Shells of the Tertiary Formation,” which was never completed. A “Monography of the Family Unionidae” was issued between 1835 and 1847. The lithographed plates in his publications were in part his own work. He contributed many articles to the '' American Journal of Science'' and the ''Journal of the Philadelphia Academy of Science''. As one of the New York state geologists he prepared the geological report for 1837. He was paleontologist of the New York Geological Survey from 1838 until ...
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