Atractis marquezi n. sp. from the large intestine of the tortoise Geochelone nigrita is described and illustrated. Atractis Dujardin, 1845, sensu Baker, 1987, is revised to contain only those atractids having a lagonoid spicule. The remaining species of Atractis sensu Baker, 1987, are assigned to Cyrtosomum, Pseudatractis, and Klossinemella. A. marquezi represents the 12th species to be assigned to this genus and is distinguished from other Neotropical species by the distribution pattern of caudal papillae of the male: 2 pairs precloacal, 2 pairs adcloacal, and 6 pairs postcloacal.
American Society of Parasitologists
2002
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