A sea of worms: polychaete checklist of the Adriatic Sea Author Mikac, Barbara text Zootaxa 2015 3943 1 1 172 journal article 10.11646/zootaxa.3943.1.1 3d075c3e-1a51-4041-8163-fb0b796c7835 1175-5326 244663 F0189376-A088-455F-9571-5B759547F589 Genus Ancistrosyllis McIntosh, 1878 ?* Ancistrosyllis cingulata ( Korschelt, 1893 ) DISTRIBUTION : NA. LITERATURE RECORDS : Korschelt 1893 ; Aleffi et al . 1988 ; Castelli 1991; Požar-Domac 1994 . REMARKS : Korschelt (1893) described the species Harpochaeta cingulata from the larval planktonic stage found in the bay of Trieste, placing it in the family Syllidae . Ehlers (1908) considered the genus Harpochaeta as being synonymous with Ancistrosyllis and Fauvel (1923a) provided a description of the species as A. cingulata , based on Korschelt's (1893) description and drawings. However, until a formal redescription is done, this species should be considered as a Pilargidae incertae sedis as it may belong to the genus Cabira . Although Korschelt (1893) clearly pictures a median antenna, which suggests an Ancistrosyllis (but not all Ancistrosyllis have a median antenna), the distinguishing features that separate Ancistrosyllis from Cabira (such as the degree of dorso-ventral body compression, a peristomium sharply divided from segment 1 in Cabira but not in Ancistrosyllis , and possibly the pharynx shape, being highly muscular and sometimes long and looped in Ancistrosyllis ), may not have been fully developed in a planktonic juvenile. Besides Korschelt (1893) also illustrates four lobes in the hind brain, which raises further difficulties in identifying the genus, as the Cabira reportedly has 3 and Ancistrosyllis 5 lobes (C. Glasby, pers. comm. ). Ancistrosyllis groenlandica McIntosh, 1878 DISTRIBUTION : NA, CA, SA. LITERATURE RECORDS : Zavodnik & Vidaković 1987 ; Požar-Domac 1994 ; Zahtila 1995 , 1997 ; Crema et al . 2001 ; Cantone & Di Pietro 2002 ; Aleffi et al . 2003 ; Solis-Weiss et al . 2004, 2007; Castelli et al . 2008 . NEW RECORDS : BM12, BM13, BM21, BM22, BM26, BM28, BM29, BM52, BM53, BM54, BM64, BM73, BM101.