RESUMO
A coccidan, Cyclospora niniae sp. nov. (Eimeriidae, Cyclosporinae), is described from the snake Ninia sebae sebae (Colubridae) from British Honduras, Central America. All of the five snakes examined were infected, the parasite inhabiting the cytoplasm of the epithelial cells of the small intestine. Oocysts were passed in the faeces in the undifferentiated stage; they averaged 14.6 x 13.3u, with sporocysts of 11.2 x 7.6u. Maturation took 6-7 days at 28oC. and was followed by collasp of the wall, giving the oocyst an irregular outline. The schizogony and gametogeny of C. niniae are illustrated, three distinct types of schizonts being described. A table is given of the eight previously described species of Cyclospora, all from the old world. It is suggested that a number of these species are synonymous (Summary)
