New genera for two polychaetes of Lepidonotinae

•Among the Lepidonotinae, two species of Lepidonotus are referred to new genera: L. dictyolepis Haswell, from Australia, to Augenerilepidonotus, and L. kumari Rullier, from Malaya, to Olgalepidonotus. As part of an on-going study on the polynoid polychaetes, two species that were described under Lepidonotus Leach, 1816, L. dictyolepis Haswell, 1883, from Australia, and L. kumari Rullier, 1970, from Malaya, show differences from Lepidonotus and are referred to two new genera: Augenerilepidonotus, for the first species, and Olgalepidonotus, for the second species. The specimens examined in this report were received on loan from the Australian Museum, Sydney (AMS), through Elizabeth Pope, Pat Hutchings, and Neville Coleman; from the Western Australian Museum, Perth, through R. W. George; and from Professor Francois Rullier, Laboratoire de Zoologie, Angers, France (LZ A). Family Polynoidae Kinberg, 1856 Subfamily Lepidonotinae Willey, 1902 Augenerilepidonotus, new genus Type species.•Lepidonotus dictyolepis Haswell, 1883. Gender: masculine. Diagnosis.•Body short, flattened, subrectangular, with 26 segments (first achaetous). Elytra and prominent elytrophores 12 pairs, on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, and 23. Elytra large, oval, overlapping, with surfaces mostly covered with chitinous irregular polygonal areas enclosing small secondary areolae, with some spinous microtubercles and lateral fringes of short, wide papillae. Dorsal cirri on nonelytrigerous segments, with bulbous cirrophores and short styles; dorsal tubercles indistinct. Prostomium bilobed, lepidonotoid, with 3 antennae, 2 palps, and 2 pairs of eyes; median antenna with bulbous ceratophore in anterior notch of prostomium; lateral antennae inserted terminally on anterior extensions of prostomium. First or tentacular segment not visible dorsally; tentaculophores lateral to prostomium, achaetous, with 2 pairs of dorsal and ventral tentacular cirri, with bulbous upper lip and small indistinct facial tubercle. Second segment with first pair of elytrophores, biramous parapodia, and long ventral buccal cirri. Biramous parapodia with small, conical notopodia on anterodorsal faces of larger neuropodia; neuropodia with subconical presetal lobe and shorter, rounded postsetal lobe, deeply cut dorsally and ventrally. Notosetae numerous, slender, densely serrated, short, extending only slightly beyond tips of neuropodia, much more slender than neurosetae; few short, tapering to blunt tips and numerous, long, tapering to capillary tips. Neurosetae stout, relatively few (812), with few spinous rows (4-5), and curved unidentate tips. Ventral cirri short, subulate. Pygidium with anal ridge and pair of anal cirri. Nephridial papillae small, bulbous, beginning on segment 8. Pharynx (?) not extended. Etymology.•The genus is named for Herman Augener (1927), whose description and figures of a specimen of Lepidonotus dictyolepis, from near the type local578 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON ity, supplemented Haswell's original description. Remarks.•Augenerilepidonotus dictyolepis differs from other species of Lepidonotus by the presence of chitinous polygonal areas on the elytra. Among the Polynoidae, similar types of elytra with chitinous polygonal areas are found in the Iphioninae Baird, including Iphione Kinberg, Iphionides Hartmann-Schroder, and Iphionella Mclntosh (See Pettibone 1986, Hanley & Burke 1991), and in Harmothoinae, including Gaudichaudius Pettibone,