Lainson Ralph
Departamento de Parasitologia, Instituto Evandro Chagas, Belém, PA, 66090-000, Brasil.
Mem Inst Oswaldo Cruz. 2002 Mar;97(2):227-37. doi: 10.1590/s0074-02762002000200016.
Eimeria carmelinoi n.sp., is described in the teiid lizard Kentropyx calcarata Spix, 1825 from north Brazil. Oocysts subspherical to spherical, averaging 21.25 x 20.15 micro m. Oocyst wall smooth, colourless and devoid of striae or micropyle. No polar body or conspicuous oocystic residuum, but frequently a small number of fine granules in Brownian movement. Sporocysts, averaging 10.1 x 9 microm, are without a Stieda body. Endogenous stages characteristic of the genus: intra-cytoplasmic, within the epithelial cells of the ileum and above the host cell nucleus. A re-description is given of a parasite previously described as Eimeria cnemidophori, in the teiid lizard Cnemidophorus lemniscatus lemniscatus. A study of the endogenous stages in the ileum necessitates renaming this coccidian as Acroeimeria cnemidophori (Carini, 1941) nov.comb., and suggests that Acroeimeria pintoi Lainson & Paperna, 1999 in the teiid Ameiva ameiva is a synonym of A. cnemidophori. A further intestinal coccidian, Acroeimeria paraensis n.sp. is described in C. l. lemniscatus, frequently as a mixed infection with A. cnemidophori. Mature oocysts, averaging 24.4 x 21.8 microm, have a single-layered, smooth, colourless wall with no micropyle or striae. No polar body, but the frequent presence of a small number of fine granules exhibiting Brownian movements. Sporocysts 9 x 8, without a Stieda body. Endogenous stages epicytoplasmic, characteristic of the genus, in the upper ileum. The importance of a study of the endogenous stages of eimeriid coccidia is discussed.
卡氏艾美球虫（Eimeria carmelinoi）新种，于1825年在来自巴西北部的鞭尾蜥科蜥蜴肯氏鞭尾蜥（Kentropyx calcarata Spix）中被描述。卵囊呈亚球形至球形，平均大小为21.25×20.15微米。卵囊壁光滑、无色，无条纹或微孔。无极体或明显的卵囊残体，但常有少量呈布朗运动的细颗粒。孢子囊平均大小为10.1×9微米，无斯氏体。该属的内源性阶段特征为：位于回肠上皮细胞内且在宿主细胞核上方的细胞质内。对先前被描述为棱背蜥艾美球虫（Eimeria cnemidophori）的一种寄生虫在鞭尾蜥科蜥蜴丽纹龙蜥（Cnemidophorus lemniscatus lemniscatus）中进行了重新描述。对回肠内源性阶段的研究使得有必要将这种球虫重新命名为顶艾美球虫（Acroeimeria cnemidophori）（卡里尼，1941年）新组合，并表明1999年在鞭尾蜥科蜥蜴亚马逊鞭尾蜥（Ameiva ameiva）中描述的平氏顶艾美球虫（Acroeimeria pintoi Lainson & Paperna）是顶艾美球虫的同物异名。另一种肠道球虫，即帕拉顶艾美球虫（Acroeimeria paraensis）新种，在丽纹龙蜥中被描述，常与顶艾美球虫混合感染。成熟卵囊平均大小为24.4×21.8微米，有单层、光滑、无色的壁，无微孔或条纹。无极体，但常有少量呈布朗运动的细颗粒。孢子囊大小为9×8，无斯氏体。内源性阶段为表质内，是该属在回肠上部的特征。讨论了对艾美球虫科球虫内源性阶段进行研究的重要性。
