title: A new species of Caryospora Léger, 1904 (Apicomplexa: Eimeriidae) from the snake Philodryas olfersii Lichtenstein (Colubridae) from a coastal habitat in Brazil.
abstract: A new coccidian species of the genus Caryospora Léger, 1904 (Protozoa, Apicomplexa, Eimeriidae) is reported from the colubrid snake host Philodryas olfersii Lichtenstein at a coastal area in the State of Rio de Janeiro, south-eastern Brazil. Oöcysts of Caryospora olfersii n. sp. are spherical to sub-spherical, 33.1 × 31.2 μm, with smooth, colourless, three-layered wall, c.1.4; middle layer lightly striated. Micropyle, oöcyst residuum and polar granule are all absent. Sporocysts are ovoid, 22.9 × 17.4 μm on average, with one extremity in the shape of a short neck. Stieda body present, 3.2 × 1.3 μm, sub-Stieda body present, homogeneous, larger than Stieda body, 4.5 × 1.7 μm. Sporozoites are inserted in a bulky sporocyst residuum.
authors.affiliation: Laboratório de Ecologia de Vertebrados, Departamento de Ecologia, Pavilhão Haroldo Lisboa da Cunha, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier 524, Maracanã, Rio de Janeiro CEP 20550-019, Brazil. lucviana74@gmail.com
authors.forename: Lúcio A
authors.initials: LA
authors.lastname: Viana
authors.forename: Gisele R
authors.initials: GR
authors.lastname: Winck
authors.forename: Cleide D
authors.initials: CD
authors.lastname: Coelho
authors.forename: Walter
authors.initials: W
authors.lastname: Flausino
authors.forename: Carlos F
authors.initials: CF
authors.lastname: Duarte Rocha
mesh_terms: D000818:Animals; D001938:Brazil; D017753:Ecosystem; D021743:Eimeriidae / Q000145:classification* / Q000166:cytology / Q000302:isolation & purification*; D008853:Microscopy; D012911:Snakes / Q000469:parasitology*; D033761:Spores, Protozoan / Q000166:cytology