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 Ecteinascidia nexa Sluiter, 1904 NEW RECORD Figure 6 B–D #3859, single zooid, about 3mm in length, possibly immature; yellow in life, color faded in formalin. Semi-prostrate, attached by most of ventral side, the anterior end curved upward; network of basal stolons issuing from posterior ventral side. About 20 rows of stigmata. Muscles cover about half the body on the left, most of the body wall on the right. Longitudinal vessels mostly complete, a few are incomplete. Agrees morphologically in every aspect with the detailed description and figures in Kott (1985) . No gonads. Distribution: Indonesia , Fiji , Australia , Philippines , Ponape , Solomon Is., New Caledonia , Mozambique , Micronesia , Papua New Guinea , Palau . Other detailed references: Kott (1981 but no illustration), Nishikawa (1986) , Monniot C. (1987a as E. aequale , 1991a , 1997), Monniot F. & Monniot C. (2008).