McAllister C T, Upton S J, Trauth S E
Renal-Metabolic Lab, Department of Veterans Affairs Medical Center, Dallas, Texas 75216.
J Parasitol. 1991 Dec;77(6):910-3.
Feces from 26 prairie racerunners, Cnemidophorus sexlineatus viridis Lowe, 1966, from Arkansas, were examined for coccidian parasites. One of these was found to be infected with oocysts of an undescribed eimerian, which is described herein as new. Sporulated oocysts of Eimeria sexlineatus n. sp. were cylindrical, 30.4 x 17.1 (28-32 x 16-19) microns, with a shape index (length/width) of 1.8 (1.6-2.0). A micropyle and oocyst residuum were absent but 1 (to several) polar granule(s) was present. Sporocysts were ellipsoidal, 10.7 x 8.5 (9.6-11.2 x 8.0-8.8) microns, with a shape index of 1.3 (1.2-1.4). A sporocyst residuum was present but Stieda, substieda, and parastieda bodies were absent. Sporozoites were elongate, 13.2 x 2.7 microns (12.0-14.4 x 2.4-3.2) in situ, containing a single, spherical posterior refractile body. Oocysts and endogenous developmental stages were found within the gall bladder epithelium of the infected lizard. This represents the first time a coccidian has been reported from a North American whiptail lizard.
对来自阿肯色州的26只草原鞭尾蜥（Cnemidophorus sexlineatus viridis Lowe，1966）的粪便进行了球虫寄生虫检查。其中一只被发现感染了一种未描述的艾美耳属球虫的卵囊，本文将其描述为新种。新种六线艾美耳球虫（Eimeria sexlineatus n. sp.）的孢子化卵囊呈圆柱形，大小为30.4×17.1（28 - 32×16 - 19）微米，形状指数（长/宽）为1.8（1.6 - 2.0）。无微孔和卵囊残体，但有1个（至几个）极粒。孢子囊呈椭圆形，大小为10.7×8.5（9.6 - 11.2×8.0 - 8.8）微米，形状指数为1.3（1.2 - 1.4）。有孢子囊残体，但无斯氏体、亚斯氏体和副斯氏体。子孢子细长，在原位大小为13.2×2.7微米（12.0 - 14.4×2.4 - 3.2），含有一个单一的球形后折光体。在受感染蜥蜴的胆囊上皮细胞内发现了卵囊和内源性发育阶段。这是首次从北美鞭尾蜥中报道球虫。
