Mansonella ozzardi: A Redescription with Comments on Its Taxonomic Relationships

Thomas C. Orihel International Collaboration in Infectious Diseases Research (ICIDR) Program, Tulane University Medical Center, Delta Regional Primate Research Center, Tulane University, New Orleans, Louisiana 70112

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Mark L. Eberhard International Collaboration in Infectious Diseases Research (ICIDR) Program, Tulane University Medical Center, Delta Regional Primate Research Center, Tulane University, New Orleans, Louisiana 70112

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Abstract. Mansonella ozzardi is redescribed from adult worms collected from the subcutaneous tissues of patas monkeys (Erythrocebus patas) infected with a Haitian strain of the filaria. The worms are small and very slender; females measure about 49 mm in length by 0.15 mm in diameter and males, 26 by 0.07 mm. Haitian (Caribbean) and Colombian (Amazon) forms of the filaria are morphologically identical, as are their microfilariae. Mansonella is most closely related to Tetrapetalonema. Based on taxonomic priority the latter becomes a synonym of Mansonella. As a consequence, T. perstans and T. streptocerca of man in Africa are designated as M. perstans (Manson, 1891) n. comb. and M. streptocerca (Macfie and Corson, 1922) n. comb. Further, M. ozzardi is most closely related to the species M. llewellyni (Price, 1962) n. comb., a parasite of the raccoon, and M. interstitium (Price, 1962) n. comb. found in squirrels, both in North America.

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