Clitellate (Annelida: Clitellata) Parasites and Predators of North American Herpetofauna: Checklist of Species, Identification Key, and a New Record for Mexico

An updated checklist of leeches and oligochaetes (Annelida: Clitellata) that parasitize or prey upon wild North American amphibians and reptiles is presented: A total of 25 species grouped in 6 genera, 5 families, and 2 orders, are registered; these infect a total of 39 species of reptiles and 39 species of amphibians in the region. An illustrated identification key for the families and genera listed is proposed. Finally, a new record is made for Mexico: the leech Placobdella parasitica (Say, 1824) (Glossiphoniidae) parasitizing the Mesoamerican slider Trachemys venusta (Gray, 1856) (Emydidae) in the state of Tamaulipas.