Isospora bronchocelae (Apicomplexa : Eimeriidae), a new coccidian parasitefrom the green crested lizard (Bronchocela cristatella) from Malaysia

A new species of Isospora is described from the feces of the green crested lizard, Bronchocela cristatella from Malaysia. Oocysts of Isospora bronchoc elae sp. n. were found in 7/48 (14.6%) green crested lizards. Sporulated oo cysts were subspherical or ovoidal, 25.2 x 22.3 (20-28 x 19-24) mum, with a bilayered wall; the outer wall marked with internal, perpendicular striati ons and a heavily pitted surface. The average shape index is 1.13 (1-1.22). No micropyle or oocyst residuum are present but the oocysts contain one po lar granule composed 1-2 globules stuck together or a splinter-shaped mass. Sporocysts are ovoidal, 14.8 x 9.9 (13-16 x 9-10) mum, average shape index is 1.5 with a smooth, single-layered wall, and composed of a broad, dome-l ike Stieda body and a large fan-like substieda body. The sporocyst residuum is composed of coarse granules clustered in an amorphous mass and lying am ong the sporozoites. The sporozoites are vermiform with a large oblong, cen trally located nucleus and circumscribed with parallel striations running t he length of the sporozoite except at the location of the nucleus and no vi sible refractile bodies.