Revision of the taxonomy of Polycirrus Grube, 1850 (Annelida: Terebellida: Polycirridae) Author Glasby, Christopher J. chris.glasby@nt.gov.au Author Hutchings, Pat chris.glasby@nt.gov.au text Zootaxa 2014 2014-10-21 3877 1 1 117 journal article 5268 10.11646/zootaxa.3877.1.1 344cf70d-6a17-464b-9a35-40324bcef9d4 1175-5326 4948375 2695A2A6-2805-4FC6-B6B6-A8C68354B944 Polycirrus disjunctus Hutchings & Glasby, 1986 Fig. 23a–i , Table 1 Polycirrus disjunctus Hutchings & Glasby, 1986: 336–338 , fig. 7d–l, 12D. Type locality. Solitary Islands , NSW, Australia . Material examined. HOLOTYPE : AM W199632 , Australia , New South Wales , Solitary Islands , 29˚56′ S, 153˚25′ E. Description. Holotype complete, 13.8 mm long, 1.6 mm wide for 52 segments. Dorsum anteriorly smooth. Venter anteriorly with mid-ventral groove from segment 3, with poorly defined ventro-lateral pads extending only to segment 5; pads more-or-less smooth apart from weak papillations on segments 2–5. Buccal tentacles of two types (main tentacle mass detached): (1) cylindrical, thickened distally, distinctly grooved and (2) cylindrical, uniformly thin, weakly grooved, both arising at junction between prostomium and upper lip. Prostomial ridge distinctly curved, extending laterally along anterodorsal base of upper lip. Upper lip trefoiled, small wing-like lobes laterally, margin of medial lobe convoluted; oral surface glandular, ciliated, with grooves leading to mouth. Inner lower lip oblong; outer region subconical lobe protruding above venter, smooth. Achaetous segments visible dorsally but obscured ventrally ( Fig. 23a ). Notochaetigerous segments 11, extending to segment 13. Notopodia digitiform, posterior ones about 2/3 length of anterior ones, lobes both similar, low and rounded ( Fig. 23b ). Notochaetae within a chaetiger consisting of one type , gradually elongating from dorsal to ventral; pinnate anteriorly, hirsute (possibly result of wear) posteriorly ( Fig. 23c–f ). Neurochaetae beginning on segment 15, 7–12 uncini per row reaching maximum number in midposterior segments. Neuropodial tori erect pinnules, differ along body, becoming more elongate posteriorly. Uncini with long neck and concave base ( Type 2), teeth above main fang arranged in single transverse series (MF:3–6), enlarged median tooth above main fang present, subrostral process very small, tooth-like or absent ( Fig. 23g –i ). Nephridial papillae present, minute, cylindrical. Pre-gular membrane nephridial papillae absent. Post-gular membrane nephridial papillae present, extending from segment 5 to 13; situated at antero-ventral base of notopodia. Comments. Hutchings & Glasby (1986) report the following variation in the paratypes : 10–11 notochaetigerous segments, neurochaetae from segment 10–14, and dental formula of uncini MF:3–8 ( Table 1 ).