title: A new species of Tripartiella (Ciliophora: Trichodinidae) from Aequidens tetramerus (Perciformes: Cichlidae) in north Brazil.
abstract: A new species of Tripartiella is described from the gills of the wild saddle cichlid Aequidens tetramerus in north Brazil. Wet smears of skin and gills of examined fish were air-dried at room temperature and impregnated with Klein's dry silver method for examination of the adhesive disc's structures and denticles. Total prevalence of parasitism was 65%. This ciliate is characterized as a small-sized trichodinid, body diameter 37.03 ± 4.9 μm, adhesive disc 30.50 ± 2.71 μm, denticulate ring 13.28 ± 0.8 μm and 24 ± 2.0 denticles. Taxonomic and morphometric data for the new species are discussed.
authors.affiliation: Departamento de Aquicultura, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil.
authors.forename: M L
authors.initials: ML
authors.lastname: Martins
authors.affiliation: Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina, Campo Experimental de Piscicultura de Camboriú, Camboriú, SC, Brazil.
authors.forename: N
authors.initials: N
authors.lastname: Marchiori
authors.affiliation: Laboratório de Aquicultura e Pesca, Embrapa Amapá, Macapá, AP, Brazil.
authors.forename: L S
authors.initials: LS
authors.lastname: Bittencourt
authors.affiliation: Laboratório de Aquicultura e Pesca, Embrapa Amapá, Macapá, AP, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: Tavares-Dias
mesh_terms: D000818:Animals; D001938:Brazil; D023681:Cichlids / Q000469:parasitology*; D005880:Gills; D016802:Oligohymenophorea / Q000145:classification*