Biodiversity of intertidal marine flatworms (Polycladida, Platyhelminthes) in southeastern Australia Author Rodríguez, Jorge 0000-0003-4242-6053 Author Hutchings, Pat A. 0000-0001-7521-3930 Author Williamson, Jane E. 0000-0003-3627-4508 text Zootaxa 2021 2021-08-23 5024 1 1 63 http://dx.doi.org/10.11646/zootaxa.5024.1.1 journal article 10.11646/zootaxa.5024.1.1 1175-5326 5258775 81B95F8A-43CD-4273-8F25-5AC5405AC1C9 Leptostylochus victoriensis Beveridge, 2017 ( Fig. 7 ) Leptostylochus victoriensis Beveridge, 2017: 32–34 , figs 1–8. Material examined: Three specimens, all sagittally sectioned. AM W.50288 (6 slides), W.51321 (2 slides), W.51322 (2 slides). Specimens were found intertidally at low tide under small rocks from Australia , New South Wales at the following sites: north east side of Pulbah Island , Lake Macquarie , 33° 5’30.19”S , 151°35’27.65”E . Coll. Jorge Rodriguez , May 18 th , 2018 and Boat Harbour , Gerroa , 34°45’02.0”S , 150°49’56.5”E . Coll. Jorge Rodriguez , Jane Williamson , Patrick Burke , Louise Tosetto and Ryan Nevatte , July 7 th , 2018 . Remarks: The studied specimens agreed with the ones described by Beveridge (2017) in both morphology and habitat. Externally, Leptostylochus victoriensis Beveridge, 2017 possesses an olive grey dorsal colouration with a pink coloured area around the genitals, cerebral eyes in two elongated clusters above the brain and a band of marginal eyes around the anterior margin of the body ( Fig. 7A ). Internally, L. victoriensis is characterised by the presence of a free prostatic vesicle with ridged glandular epithelium, lack of seminal vesicle, presence of a long penis papilla housed in a tall male atrium and a female system with Lang’s vesicle ( Fig. 7B, C ). Molecular remarks: Leptostylochus victoriensis appeared as sister taxon of Leptostylochus cf gracilis with high support (100/1.00) and nested within Stylochoidea . Distribution: Australia , Victoria , Separation Creek ( Beveridge 2017 , type locality). These new findings represent an extension on the geographical distribution range of this species for southeastern Australia .