Redescriptions of Illiosentis ctenorhynchus Cable & Linderoth, 1963 (Illiosentidae) and Micracanthorhynchina motomurai (Harada, 1935) (Rhadinorhynchidae: Gorgorhynchinae) (Acanthocephala: Palaeacanthocephala)

Abstract

We provide redescriptions of two species of acanthocephalans in one class Palaeacanthocephala and 2 families collected from hosts in different geographical locations in Jamaica and Korea. Each species account is annotated and morphologically presented using light microscopy showing new characteristic diagnostic features. In Illiosentidae, we provide a new description of Illiosentis ctenorhynchus Cable & Linderoth, 1963 from the type host, the yellow goatfish Mulloidichthis martinicus (Cuvier) in Jamaica that completes and corrects the inadequate and incomplete original description. In Rhadinorhynchidae (Rhadinorhynchinae), we redescribe Micracanthorhynchina motomurai (Harada, 1935) from the pale chub Zacco platypus (Temminck & Schlegel) and the dark chub Zacco temmincki (Temminck & Schlegel) in Korea and complement much missing information and images. We also provide museum numbers for lectotype male, allolectope female, and paralectotypes that we have deposited as Harada did not designate type material for M. motomurai.