Blood samples from 72 Ameiva ameiva lizards from Central Amazonian upland forests were collected, and thin smears of 40 (55.5%) animals were positive for gamonts of Hepatozoon with a mean level of intensity of infection of 14 parasites/2000 blood erythrocytes (0.73%). The gametocytes were found attached with host cells’ nuclei, and their dimensions were 14.28 ± 1.05 μm in length and 4.50 ± 0.80 μm in width. Phylogenetic analyses of the 18S rRNA gene showed that the new sequences obtained from A. ameiva constitute a monophyletic sister clade to the Hepatozoon spp. from Brazilian snakes. Based on morphological features and new molecular data, we redescribe this hemogregarine as Hepatozoon ameivae. This study also provides the first molecular characterization of a Hepatozoon species from a Brazilian lizard.

收集了来自亚马逊中部山地森林的72个阿米瓦双子座蜥蜴的血样，对40例动物（55.5％）的薄涂片涂片对肝pat菌呈阳性，平均感染强度为14种寄生虫/ 2000血红细胞（0.73％） 。发现配子细胞附着于宿主细胞的核，其尺寸为长14.28±1.05μm，宽4.50±0.80μm。的18S rRNA基因的系统发育分析表明，从所获得的新的序列甲。ameiva构成一个单姐妹分支到Hepatozoon属。来自巴西蛇。基于形态特征和新的分子数据，我们将这种血gregargarine重新命名为Hepatozoon ameivae。这项研究还提供了来自巴西蜥蜴的Hepatozoon物种的第一个分子表征。