title: Eimeria curvata n. sp.(Apicomplexa: Eimeriidae) in Columbina talpacoti and Scardafella squammata (Aves: Columbidae) from Brazil.
abstract: Eimeria curvata is a new coccidian described in the doves Columbina talpacoti and Scardafella squammata from western of the State of São Paulo, Brazil. The oocysts are ovoid to ellipsoid, 18.3 (17-19) microm x 15.5 (15-17) microm, with a shape index of 1.2 (1.1-1.3). The wall is colorless, smooth and double-layered. A polar granule is present, but there is no micropyle or oocyst residuum. The sporocysts are elongate, 12.3 (11.5-13) microm x 5.8 (5.5-6) microm with a curved anterior portion and a smooth, thin, single-layered wall. The Stieda body is protuberant and nipple-like; there is no substieda body. The sporozoites lie head-to-tail in the sporocyst and contain a large refractile body at the extremities. The sporocyst residuum contains small granules uniformly distributed in the middle of the sporocyst. The prevalence of E. curvata n. sp. was 17.4% and 12.8% in C. talpacoti and S. squammata, respectively.
authors.affiliation: Departamento de Parasitologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, 13083-970, Brasil. andrian@obelix.unicamp.br
authors.forename: E A
authors.initials: EA
authors.lastname: Adriano
authors.forename: P J
authors.initials: PJ
authors.lastname: Thyssen
authors.forename: N S
authors.initials: NS
authors.lastname: Cordeiro
mesh_terms: D000818:Animals; D001938:Brazil; D010856:Columbidae / Q000469:parasitology*; D004539:Eimeria / Q000145:classification / Q000166:cytology*