| tissue-dwelling philometrid nematodes of the fish arapaima gigas in brazil. | the nematode rumai rumai travassos, 1960 (philometridae) is redescribed from the tissues of the mouth, tongue, operculum and head of the arapaima, arapaima gigas (schinz) (osteichthyes), from mexiana island, amazon river delta, brazil. additional data on the related nilonema senticosum (baylis, 1922) from the same host and locality are also presented. rumai rumai is characterized by the presence of a sclerotized formation on the female cephalic end, dorsal and ventral cephalic projections, the s ... | 2009 | 19224666 |