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A revision of Micropodarke (Psamathini,Hesionidae, Polychaeta)
Abstract:Micropodarke Okuda, (Psamathini, Hesionidae, Polychaeta) is revised based on examination of all available types, other museum specimens, and a large number of newly collected specimens from Japan, Hong Kong, Papua New Guinea, Australia, New Caledonia, California, the west coast of Canada, and the Red Sea. The previous synonymy of Micropodarke amemiyai Okuda, with M. dubia (Hessle, ) is substantiated, and M. trilobata Hartmann‐Schröder, is newly synonymized with M. dubia, leaving Micropodarke monotypic. A lectotype is selected for M. dubia. Micropodarke dubia is identified by the apomorphies of a proboscis diaphragm, segmental ventral adhesive papillae, distally nobbed and slightly curved neuroaciculae, and median neurochaetae with few, basally situated prolonged teeth (“spurs”), with abrupt transition to the following, much shorter teeth. Micropodarke dubia has a main distribution in the tropical and warm temperate Indo‐Pacific region, and appears to be absent from the Atlantic Ocean.
Keywords:Hesionidae  Micropodarke  Micropodarke trilobata  new synonymy  Polychaeta  revision  taxonomy
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