Summary Leptodactylus petersii is a species of anuran found in both terrestrial and aquatic habitats and occurs from South America to southern North America and the West Indies. Studies involving the fauna of anuran parasites offer complementary information related to ecology. Thus, since there are few studies on the natural history of this species, this research aims to analyze the diet and the presence of endoparasitic helminths of Leptodactylus petersii from the state of Amapá, Brazil. We found 10 different taxonomic categories of prey in stomach contents, with the categories Hymenoptera (Formicidae) with 32.26 % (n = 12) being the most representative. Among the 12 individuals of L. petersii that were analyzed for helminth parasites, 83.3 % were infected with at least one species of helminths allocated to Phylum Nematoda. Our results report a new occurrence site for Rhabdias breviensis, originally described for Leptodactylus petersii in the state of Pará, as well as the second report of Ortleppascaris sp. in Brazil.

中文翻译：

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来自巴西东部亚马逊阿马帕州的 Leptodactylus petersii (Steindachner, 1864)（Anura：Leptodactylidae）的蠕虫寄生虫和饮食

总结 Leptodactylus petersii 是一种无尾目动物，在陆地和水生栖息地均有发现，分布于南美洲至北美洲南部和西印度群岛。涉及无尾目寄生虫动物群的研究提供了与生态学相关的补充信息。因此，由于对该物种自然史的研究很少，本研究旨在分析巴西阿马帕州 Leptodactylus petersii 的饮食和体内寄生蠕虫的存在。我们在胃内容物中发现了 10 种不同的猎物分类类别，其中膜翅目（蚁科）的类别占 32.26%（n = 12）最具代表性。在分析蠕虫寄生虫的 12 个 L. petersii 个体中，83.3% 感染了至少一种属于线虫门的蠕虫。我们的结果报告了 Rhabdias breviensis 的一个新发生地点，最初描述的是帕拉州的 Leptodactylus petersii，以及 Ortleppascaris sp. 的第二份报告。在巴西。