Acanthotrema felis n. sp. (Digenea: Heterophyidae) is described from adult flukes recovered in the small intestine of stray cats caught in the southwestern part of the Republic of Korea. The worms were characterized by minute body size, the presence of a bipartite seminal vesicle, and a ventral sucker associated with a ventrogenital sac, which enclosed 3 sclerites (2 long and pointed, and 1 short and thumblike), and an unarmed gonotyl. They were assigned to Acanthotrema Travassos, 1928, which currently contains 4 species. The new species resembles A. acanthotrema, the type species, because both have 3 sclerites on the ventrogenital sac. However, all 3 sclerites in the new species are armed with minute spines on their base, whereas only 2 sclerites in A. acanthotrema have minute spines near their tips. Three species of Stictodora Looss, 1899, namely, Stictodora tridactyla Martin and Kuntz, 1955, S. cursitans Kinsella and Heard, 1974, and S. tanayensis Velasquez, 1973, are transferred to Acanthotrema, and the new species is distinguished from them particularly in terms of the number and shape of its sclerites. The generic diagnosis of Acanthotrema is emended.

American Society of Parasitologists
2003
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