Viana Lúcio A, Winck Gisele R, Coelho Cleide D, Flausino Walter, Duarte Rocha Carlos F
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.
Syst Parasitol. 2013 Jun;85(2):195-9. doi: 10.1007/s11230-013-9420-0. Epub 2013 May 15.
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.