Pyura curvigona Tokioka, 1950

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 : 31

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).

Figures

FIGURE 11. A, B: Microcosmus exasperatus. A: whole animal right side, 1.2 cm in height; B: siphonal spines, largest 44 um long; C: Microcosmus helleri in tunic, 2 cm in width, showing opened edges of embedded bivalve (arrow); D: bivalve removed from host tunic; E: anterior end of small Pyura curvigona (2 cm total length) partially embedded in Polyandrocarpa rollandi colony; F: P. curvigona siphonal spines, longest 211 µm.