Ascidians collected during the 2013 Singapore Strait International Marine Biodiversity Workshop Author Lambert, Gretchen University of Washington Friday Harbor Laboratories, 620 University Road, Friday Harbor WA 98250, USA. Author Lee, Serina Siew-Chen 0000-0001-9326-0941 St John’s Island National Marine Laboratory, National University of Singapore, 18 Kent Ridge Road, Singapore 119227. & serina. lee @ nus. edu. sg; https: // orcid. org / 0000 - 0001 - 9326 - 0941 serina.lee@nus.edu.sg Author Teo, Serena Lay-Ming 0000-0002-3309-4715 St John’s Island National Marine Laboratory, National University of Singapore, 18 Kent Ridge Road, Singapore 119227. & tmsteolm @ nus. edu. sg; https: // orcid. org / 0000 - 0002 - 3309 - 4715 tmsteolm@nus.edu.sg text Zootaxa 2021 2021-02-18 4933 1 1 38 journal article 8063 10.11646/zootaxa.4933.1.1 8ebe62fc-b086-459e-b9fd-8a75ded875c7 1175-5326 4547842 56476487-ABC9-4C1C-A73F-D39E55DB9005 Pyura curvigona Tokioka, 1950 Figures 11E, F #2655B, small specimen embedded in Polyandrocarpa rollandi colony (#2655A); body in tunic 2 cm tall, 2.2 cm wide. Long iridescent siphonal spines up to about 211 µm . Rectum swollen, anus with many rounded lobes. Liver greenish, dark. Amphipod in branchial sac. Widely distributed in tropical western Pacific: China , Hong Kong , Indonesia , Singapore , Vietnam , Australia , Palau , Truk , Majuro, Japan , Okinawa , Guam . Detailed references with illustrations: Tokioka (1950 , 1967 ), Millar (1975) , Kott & Goodbody (1982) , Kott (1985) , Cole & Vorontsova (1998) , Monniot F. (2009b), Lee et al . (2013) . Other references: Tokioka & Nishikawa (1975) , Nishikawa (1984) , Kott (1992) , Zheng (1995) , Lambert (2003) , Lee et al . (2016) .