Phyllidia ocellata Cuvier, 1804

Jung, Daewui & Kim, Jongrak Lee and Chang-Bae, 2013, A report on species of phyllidiid and polycerid nudibranch including two species new to Korea, Journal of Species Research 2 (1), pp. 7-14 : 8

Phyllidia ocellata Cuvier, 1804 ( Fig. 1 )

Phyllidia ocellata Cuvier, 1804: 269 , pl. a, fig. 7 (cited from Yonow, 1996). Brunckhorst, 1993: 35-37, figs 25D-E, pls. 2D-H, 3A; Yonow, 1996: 485-487, fig. 1, tab. 1; Choe and Lee, 1997: 38, tab. 1; Okutani, 2000: 795, fig. 3; Lee and Min, 2002: 145; Choi, 2003: 47, pl. 5; Debelius and Kuiter, 2007: 265; Gosliner et al., 2008: 287.

Phyllidiopsis carinata Eliot, 1910: 435-436 , pl. 25, figs. 8, 9, 12 (cited from Yonow, 1996).

Phyllidia multituberculata Boettger, 1918: 129-130 , pl. 8, fig. 4a-c (cited from Brunckhorst, 1993); Yonow, 1996: 487-490, figs. 2A-E, 3A-G, 4B, tab. 1.

Phyllidia tuberculata Baba, 1930: 117-118 , pl. 4, fig. 1a-d (non Phyllidia tuberculata Risbec, 1928 ) (cited from Brunckhorst, 1993).

Phylldia japonica Baba, 1937: 310 (cited from Brunckhorst, 1993); Baba, 1949:72, 157, pl. 29, fig. 108; Lim and Chou, 1970: 134, pl. 16c (cited from Yonow, 1996).

Phylldia baccata Pruvot-Fol, 1957: 111-113 , figs. 13- 21, pl. 1b (cited from Brunckhorst, 1993).

Phyllidia ocellata undula Yonow, 1986: 1411-1413 , figs. 5, 12a, b (cited from Brunckhorst, 1993).

Material examined. 1 individual, Jeju-do, Seogwipo-si, Seogwi-dong. 19 Feb 2012; 1 individual ( KOSPIV 0000 164403), Jeju-do, Seogwipo-si, Seogwi-dong. 13 Oct 2013; 1 individual, Jeju-do, Seogwipo-si , Seogwi-dong. 14 Oct 2013 .

Diagnosis. Body ovate and elongate (length: 42-63 mm, width: 26-40 mm). Rhinophores lamellate and dark yellow in color ( Fig. 1A ). Anus open with yellow border. Anus papilla white ( Fig. 1B ). Back ground color brightly yellow. Dorsum several various sizes of patches of black rings bordered with white, rounded or conical tubercles scattered. Median dorsal tubercles appear to line up longitudinally. Tubercles usually decrease in size from top to edge of mantle ( Fig. 1C ). Sole of foot gray, divided anteriorly ( Fig. 1D ). Oral tentacles finger like in shape, rounded ends ( Fig. 1E ).

Distribution. Korea, Southern Japan, Thailand, Philippines, Indo-west Pacific, Indonesia, Australia, South Africa, Tanzania, Madagascar, Mauritius, Seychelles, Red Sea to Maldives, Fiji, Solomon Island, Papua New Guinea,Vanatu, Gaum to Marshall Island.

DNA barcode. COI sequences of the first mentioned specimen in the “Material examined” are as follows: 5′- CGATCATTTTTATAATGTTATTGTAACAGCTCA TGCTTTTGTAATAATTTTCTTTTTGGTAATACCT TTAATAATTGGGGGGTTCGGAAATTGAATGGTC CCATTACTAATTGGTGCTCCAGACATAAGATTT CCCCGAATAAATAATATAAGTTTTTGGTTACTA CCACCATCTTTTATTTTATTATTATGCTCAACTTT AATAGAAGGTGGAGCTGGAACAGGGTGAACTG TTTATCCCCCATTATCTGGACCAATAGGACATG GTGGGACTTCTGTTGATTTAGTAATTTTTTCTTT ACACTTAGCTGGAGCCTCTTCTCTTCTAGGGGC AATTAATTTTATTACTACTATCTTCAATATACGT TCACCTGCTATAACAATGGAACGTTTAAGATTA TTTGTTTGGTCAGTTTTAGTGACAGCTTTTCTTT TACTTCTTTCTTTACCTGTTTTAGCAGGGGCTAT TACTATACTTTTAACGGATCGAAATTTTAACA-3′. According to BLAST search to GenBank, this sequence matches 88% with Phyllidia elegans ( AJ 223276). There is no COI sequence information for P. ocellata in the GenBank. Therefore more COI records from different localities of the species are needed for correct molecular identification.

Remarks. Phyllidia ocellata is known as variety of color pattern, even from a single locality ( Gosliner et al., 2008). In Korea, however, all of specimens examined in this study and previous study ( Choi, 2003) are shown same dorsal patterns with bright yellow background and 7-8 black thick rings and several patches.

Figures

Fig. 1. Pyllidia ocellata Cuvier, 1804. A. rhinophores. B. anus. C. dorsal view. D. ventral view. E. oral tentacles. A-C. living animal. D, E. preserved specimen. An arrow indicates anus. Scales=5 mm.