Hartmann-Schröder, 1982 : 60 Typosyllis macrodentata Licher 1999 : 96 Typosyllis (Typosyllis) macropectinans Hartmann-Schröder, 1982 The genus Syllis Savigny in Lamarck, 1818 (Annelida: Syllidae: Syllinae) from Australia (second part): four new species and re-description of twelve previously described species Martín, Guillermo San Álvarez-Campos, Patricia Hutchings, Pat Zootaxa 2017 4237 2 201 243 7B6RS Hartmann-Schroder, 1982 Hartmann-Schroder 1982 [151,744,1988,2014] Polychaeta Syllidae Syllis Animalia Phyllodocida 18 219 Annelida species macrodentata comb. nov.     Typosyllis (Typosyllis) macrodentata  Hartmann-Schröder, 1982: 60, figs 22–25; 1983: 128, figs 4–8; 1984: 15; 1986: 39; 1987: 35; 1989: 21; 1990: 47.    Typosyllis macrodentata.  Licher 1999: 96, in part, excluding  Typosyllis (Typosyllis) macropectinans Hartmann-Schröder, 1982.   Material examined.AUSTRALIA,   WESTERNAUSTRALIA: Guilderton, 1 Paratype HZMP–16757, coll. in brown algae and  Corallina, coll.  26 October 1975, id. G. Hartmann– Schröder;  Denmark, Ocean Beach, HZMP– 17578, 2 specimens, coll. in brown algae, and id. G. Hartmann-Schröder.  SOUTH AUSTRALIA: Pondalowie& Marion Bays, Yorke Peninsula, 34° 14.5’ S, 50° E, AM W.45819, 14 specimens;  Caulerpa& green algae,  3 m, coll. I. Loch,  22 February 1985, one mounted for SEM, AM W.45818.  NEW SOUTH WALES: Lake Macquarie, HZM P–20023, 1 specimen, in amongst algae, coll. & id. G. Hartmann–Schröder.    Comparativematerial.  Typosyllis( Typosyllis) macropectinans.  WESTERNAUSTRALIA, Guilderton, brown algae and  Corallina,  26 Oct 1975, holotype,  HZMP–16755. Augusta, Saige Bay,  13 November 1975, coll. & id. Hartmann–Schröder, 1 specimen, HZM P–17505.  NEW SOUTH WALES. South of Tathra, North Kianinny Gutter, from vertical rock face just above carbonate sand channel, 36° 43' 59" S, 149° 59' 16" E,  10 mdepth,  Halopteris platycera,  16 March 2004, coll. A.J. Millar, J. Eu& S.J. Keable, AM W.41628, 1 specimen; North of Batemans Bay, south side of Grasshopper Island, 35° 37' 57" S, 150° 19' 57" E,  16 mdepth,  Jania natalensis,  14 March 2004, coll. A.J. Millar, J. Eu& S.J. Keable, AM W.41626, 5 specimens; mouth of Batemans Bay, northwest side of Tollgate Islands, hard platform with occasional rocks and low reefs, 35° 44' 44" S, 150° 15' 31" E,  12 mdepth,  Halopteris platycera,  13 March 2004, coll. A.J. Millar, J. Eu& S.J. Keable, AM W.41597, 1 specimen.   Description.Longest complete specimen 6 mmlong (up to 6.8 mm fide Licher 1999), 0.3 mm wide, with 86 chaetigers. Body relatively short and wide, preserved specimen without colour pattern. Prostomium oval; 4 eyes in trapezoidal arrangement. Palps similar in length to prostomium ( Figs 10A, 11B). Median antenna arising between the posterior eyes, with about 18 articles, similar in length to combined length of prostomium and palps; lateral antennae shorter than median one, with about 10 articles. Peristomium shorter than subsequent segments ( Figs 10A, 11A). Dorsal tentacular cirri similar in length to median antenna, with about 17 articles; ventral tentacular cirri with 12–14 articles. Dorsal parapodial cirri shorter than body width, coiled over dorsum ( Fig. 10A), most anterior ones longer than dorsal tentacular cirri, with about 33 articles (chaetiger 1); alternating long (26–28 articles) and short (20–23) dorsal parapodial cirri; articles with iridescent inclusions inside. Parapodia conical, distally truncated, with a posterior small lobe ( Fig. 10A). Ventral parapodial cirri digitiform, shorter than parapodial lobes. Compound chaetae with short, triangular, bidentate blades, with proximal tooth smaller than distal one, and long, coarse spines on margin, somewhat curved, with bent tips, similar throughout body ( Figs 10B– D, 11B). Anterior parapodia with about 10 compound chaetae each, with blades 20 µm long above and 15–16 µm long below ( Fig. 10B); midbody parapodia with 7–9 compound chaetae each, with blades 20 µm long above and 15 µm long below ( Figs 10C, 11B); posterior parapodia with 4–7 compound chaetae each, with blades similar in shape and size to midbody ones ( Fig. 10D). Dorsal simple chaetae on posterior parapodia only (from midbody in small specimens), relatively thick, distally markedly bifid ( Fig. 10E). Ventral simple chaetae on far posterior segments only, slender, smooth, bidentate with proximal tooth shorter than distal one ( Fig. 10G). Aciculae slender, distally rounded, slightly oblique, 2–3 ineach anterior parapodium, solitary in each posterior parapodium ( Fig. 10F). Pharynx extending through about 6 segments (somewhat contracted in examined specimens); pharyngeal tooth oval, on anterior margin of pharynx ( Fig. 10A). Proventricle slender, elongated, through about 6 segments (shorter in small specimens), with about 28–30 muscle cell rows. Pygidium with two anal cirri, with about 20 articles, and a median stylus.   Remarks. The examination of the holotype(HZM P–16755) and of several specimens in the AM identified as  Typosyllis( Typosyllis) magnipectinans Hartmann-Schröder, 1982shows that they are different species. Both species have different colour pattern, being red to orange in  T. magnipectinans, with short pharynx, indistinctly articulated dorsal parapodial cirri, and compound chaetae with hooked blades and long, straight spines on margin of blades.  Habitat. Algae in shallow depths.   Distribution. Only reported from Australia(  Western Australia, South Australia, New South Wales). 1437751737 1975-10-26 HZM G. Hartmann & Schroder Guilderton 19 220 1 WESTERN AUSTRALIA paratype 1437751731 HZM G. Hartmann-Schroder Denmark Ocean Beach 19 220 2 paratype 1437751727 1985-02-22 I. Loch Denmark Yorke Peninsula 3 -34.241665 Pondalowie Marion Bays 19 220 14 SOUTH AUSTRALIA paratype 1437751734 [895,1363,495,520] Denmark Lake Macquarie 19 220 1 NEW SOUTH WALES paratype 1437751735 1975-10-26 Comparative Guilderton 19 220 1 WESTERN AUSTRALIA holotype 1437751730 1975-11-13 HZM Augusta Saige Bay 19 220 1 WESTERN AUSTRALIA holotype 1437751720 2004-03-16 A. J. Millar & J. Eu & S. J. Keable 10 -36.733055 Tathra 19 149.98778 North Kianinny Gutter 19 220 1 NEW SOUTH WALES holotype 1437751738 2004-03-14 A. J. Millar & J. Eu & S. J. Keable Iceland 16 -35.6325 Batemans Bay 19 150.3325 19 220 5 holotype 1437751740 2004-03-13 A. J. Millar & J. Eu & S. J. Keable Iceland 12 -35.745556 Batemans Bay 19 150.2586 Tollgate Islands 19 220 1 holotype