Revision of Trigonostomum Schmidt, 1852 (Platyhelminthes, Typhloplanoida, Trigonostomidae) with the description of seven new species Author Willems, Wim R. Author Artois, Tom J. Author Vermin, Wouter A. Author Schockaert, Ernest R. text Zoological Journal of the Linnean Society 2004 2004-06-30 141 2 271 296 https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2004.00124.x journal article 5407 10.1111/j.1096-3642.2004.00124.x d15c737e-c0cb-4f09-98dd-d707de72a43a 0024-4082 4634553 TRIGONOSTOMUM WATSONI SP. NOV. ( FIG. 7B ) Alternative species name: trigonostomum-watsoni sp. nov. Holotype : Whole mount, Australia , New South Wales , Arrawarra , on Pavonina -like algae in shallow tidepool between rocks near beach, 27 August 1996 . Paratype : One whole mount. Other material: Observations on live material. Six whole mounts and six serially-sectioned specimens, Australia , New South Wales , Lennox Head , on beach with coarse sand and on algae in tide pool, 27 October and 1 November 1997 . One whole mount, Australia , New South Wales , Arrawarra , on Sargassum sp. in permanent pool, 27 August 1996 . One whole mount, Australia , New South Wales , Arrawarra , Mullaway headland, on algae in deep rock pools, 24 July 2003 . Two whole mounts, New Caledonia , Nouméa , Magenta , permanent pool near mangroves, on large algae covered with epiphytes, 22 August 2003 . Etymology: Dedicated to Dr Nikki Watson, Armidale, Australia , who assisted with the collection of material at Arrawarra. Diagnosis: Trigonostomum species with copulatory organ 28–36 Mm long. Stylet 29–41 Mm long, proximally bent over 90∞. Mantle with three spine-like plates surrounds only the distal part of the stylet. Bursal appendage 62–78 Mm long, with two coiled (more than 360∞) striated tubes.