Exploring the basal topology of the heteronemertean tree of life: establishment of a new family, along with turbotaxonomy of Valenciniidae (Nemertea: Pilidiophora: Heteronemertea) Author Kajihara, Hiroshi Author Abukawa, Shushi Author Chernyshev, Alexei V. text Zoological Journal of the Linnean Society 2022 196 503 548 journal article 10.1093/zoolinnean/zlac015 372f8265-c53c-43fa-9448-07d5a58d311f 0024-4082 7037958 78C56409-FCCF-4116-8D8C-FF66B247C56C BASEODISCUS AUREUS ( BÜRGER, 1896 ) Eupolia aurea Bürger, 1896: 274 ( Tumbes , Peru ). Eupolia platei Bürger, 1896: 274 (Tubmes, Peru ; Talcahuano, Chile ). Eupolia pallida Isler, 1900: 15 (Juan Fernández, Chile ). ? Eupolia sulcatus Isler, 1900: 14 , figs 8, 9 (Bay of Guajacan near Coquimbo , Chile ). Baseodiscus aureus : Bürger, 1904: 84 ; Friedrich, 1970: 9 (Gulf of Ancud, Chile ); Thiel & Norenburg, 2009: 377 , figs A–E ( Chile ). Material sequenced: Two specimens (DNA vouchers ICHUM 6330 , 6331 ); 16 February 2009 , Tumbes ( 36°37′50″S , 73°05′26″W ), Chile , collected by P. Sundberg ; one of the two is equivalent to ‘NemBar0920’ in Sundberg et al . (2016b) . Sequences: From ICHUM 6330 : LC178587 , 18S (1796 bp) ; LC178615 , 28S (2040 bp) ; LC178658 , 16S (505 bp) ; LC190939 , COI (598 bp). From ICHUM 6331 : LC178588 , 18S (1797 bp) ; LC178616 , 28S (2042 bp) ; LC178659 , 16S (505 bp) . Distribution: South-western Pacific. Peru ( Bürger, 1896 ) and Chile ( Bürger, 1896 ; Isler, 1900 ; Friedrich, 1970 ; Thiel & Norenburg, 2009 ; present study). Remarks: Thiel & Norenburg (2009: 377) placed Baseodiscus platei ( Bürger, 1896 ) in the synonym list of Baseodiscus aureus ( Bürger, 1896 ) with uncertainty. It remains to be determined whether B. platei is distinct from B. aureus .