A revision of Micropodarke (Psamathini, Hesionidae, Polychaeta)

• Micropodarke Okuda, 1938 (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, 1938 with M. dubia (Hessle, 1925) is substantiated, and M. trilobata Hartmann-Schroder, 1983 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 neurouchaetae 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.

Ämnesord

NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)

NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)

Nyckelord

Hesionidae

Micropodarke

Micropodarke trilobata

new synonymy

Polychaeta

revision

taxonomy

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)