RESUMEN
The genera Pediculus and Pthirus were studied cladistically, although the genus Pedicinus was also taken into account. Morphological characters from the literature, and some established through direct study were analyzed. Using five methods of cladistic analysis, one most parsimonious tree with a c.i. = 0.84 and a length of 38 was obtained ((Pedicinus)+(Paenipediculus+(Parapediculus+(Pedicu lus humanus capitis+Pediculus humanus humanus). A novelty of this study is the inclusion of the subgenus.
Asunto(s)
Cercopithecidae/parasitología , Phthiraptera/fisiología , Filogenia , Animales , Femenino , MasculinoRESUMEN
The genera Pediculus and Pthirus were studied cladistically, although the genus Pedicinus was also taken into account. Morphological characters from the literature, and some established through direct study were analyzed. Using five methods of cladistic analysis, one most parsimonious tree with a c.i.=0.84 and a length of 38 was obtained ((Pedicinus)+(Paenipediculus+(Parapediculus+(Pediculus humanus capitis+Pediculus humanus humanus). A novelty of this study is the inclusion of the subgenus
Asunto(s)
Animales , Masculino , Femenino , Cercopithecidae/parasitología , Phthiraptera/fisiología , FilogeniaRESUMEN
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.