Abstract
Specimens of the turtle barnacle Cylindrolepas sinica Ren, 1980 were collected from sea turtles in Japanese waters. The specimens were hexagonal in shape and were found burrowing into the sea turtle plastron. Specimens were dissected and the hard and soft parts were compared with the original description.
Highlights
Ren (1980) described a new species of barnacle, Cylindrolepas sinica, collected from green sea turtles, Chelonia mydas (Linnaeus, 1758). Hayashi (2009) subsequently recorded Cylindrolepas sinica from three species of sea turtle: the green sea turtle, C. mydas, loggerhead, Caretta caretta (Linnaeus, 1758), and hawksbill, Eretmochelys imbricata (Linnaeus, 1766)
From the plastron of a green sea turtle stranded on Ishigaki Island, Okinawa, Japan, November 25, 2001, Ryota Hayashi coll. (RUMF-ZC-02047); from the plastron of a living green sea turtle, April 17, 2004, Hahajima Island, Ogasawara, Tokyo, Japan, Ryota Hayashi coll. (RUMF-ZC-02045); from a plastic tag on a stranded loggerhead sea turtle, September 26, 2010 at Yomitan, Okinawa, Japan, Ryota Hayashi coll. (RUMF-ZC-02048)
One individual was collected from a plastic tag attached to a loggerhead sea turtle (Fig. 2C, D)
Summary
Ren (1980) described a new species of barnacle, Cylindrolepas sinica, collected from green sea turtles, Chelonia mydas (Linnaeus, 1758). Hayashi (2009) subsequently recorded Cylindrolepas sinica from three species of sea turtle: the green sea turtle, C. mydas, loggerhead, Caretta caretta (Linnaeus, 1758), and hawksbill, Eretmochelys imbricata (Linnaeus, 1766). Ren (1980) described a new species of barnacle, Cylindrolepas sinica, collected from green sea turtles, Chelonia mydas (Linnaeus, 1758). As shown in previous studies (Hayashi 2009, 2012), C. sinica is a common species on Japanese sea turtles. This species was described as a cylindrical and rounded barnacle in previous studies (as shown in Fig. 1A and 1B).
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