First report of the genus Physaloptera (Nematoda: Physalopteridae) in Lithobates montezumae (Anura: Ranidae) from Mexico

Abstract

Nematode third stage larvae of the genus Physaloptera (Nematoda: Physalopteridae) were recovered fromthe stomach of Lithobates montezumae (Anura: Ranidae) collected in the Pedregal de San Angel Ecological Reservein Mexico D. F. (19º11’6.50” N, 99º11’41.42” W; 2 312 m asl). The morphology of the larvae is briefly describedand a list of previously recorded localities and hosts in Mexico is given. This study is the first record of Physalopterasp. parasitizing L. montezumae, and also represents the first helminthological record for anurans in this locality, aswell as a new locality record for the nematode genus.