Figure 1.Cylindrolepas sinica Ren, 1980. A–B original variant occurring on the soft skin of sea turtles (RUMF-ZC-02030) C–H hexagonal variant occurring on the plastron of sea turtles (RUMF-ZC-02045) A and C, upper, basal, upper oblique and lateral views B and D parietal plates (surface and back view) E sutural elaboration of the parietal wall F upper view of radii G inner view of basal margin H basal margin with parietal ribs I hexagonal shell wall of Xenobalanus globicipitis.
Figure 2.Habitat of Cylindrolepas sinica Ren, 1980. A the original rounded form aggregated on the tail of a green sea turtle B the hexagonal variant burrowing into a green sea turtle plastron C an unusual specimen attached to a plastic tag on a loggerhead sea turtle D close-up view of the individual attached to the plastic tag.
