Ecteinascidia nexa Sluiter, 1904

Lambert, Gretchen, Lee, Serina Siew-Chen & Teo, Serena Lay-Ming, 2021, Ascidians collected during the 2013 Singapore Strait International Marine Biodiversity Workshop, Zootaxa 4933 (1), pp. 1-38 : 16

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).

Figures

FIGURE 6. A: Rhodosoma turcicum 3 cm in length; B–D: Ecteinascidia nexa zooid 3 mm in length. B: living zooid; C, D same zooid preserved. C: right side; D: left side. E: Ecteinascidia thurstoni, two zooids 6 mm in length; F: Perophora modificata, scale bar 4 mm; G: Perophora multiclathrata 3 mm in diameter.