Polycerinae Alder & Hancock, 1845

Chow, Lai Him, Yu, Vriko Pik Fan, Kho, Zi Yi, See, Gomen Chun Lung, Wang, Adam, Baker, David M. & Tsang, Ling Ming, 2022, Garypus sanasai Lin, Huang & Chang 2022, sp. nov., Zoological Studies 61 (52), pp. 1-33 : 21

Subfamily Polycerinae Alder & Hancock, 1845

169. Gymnodoris alba (Bergh, 1877) * ( Fig. 8B ) Previous HK record: Rudman and Darvell (1990), Jensen (1998).

Distribution: Indo-Pacific (from East Africa to Australia, Japan and Hawaii) ( Mehrotra et al. 2021).

170. Gymnodoris amakusana (Baba, 1996) * ( Fig. 8C ) Previous HK record: Rudman and Darvell (1990) (as Gymnodoris striata ), Coleman (2008).

Distribution: western Pacific ( Hong Kong, Taiwan, Japan, Australia, New Caledonia) ( Coleman 2008).

171. Gymnodoris citrina (Bergh, 1877) * ( Fig. 8D ) Previous HK record: Orr (1980 1981), Morton and Morton (1983), Rudman and Darvell (1990), Jensen (1998), Coleman (2008) (as Gymnodoris bicolor ).

Distribution: Indo-Pacific (from East Africa to Japan, Australia and Samoa) ( Tibirica et al. 2017).

172. Gymnodoris impudica (Rüppell & Leuckart, 1830) * ( Fig. 8E )

Previous HK record: Rudman and Darvell (1990), Jensen (1998), Coleman (2008).

Distribution: Indo-West Pacific (from East Africa to Japan, Solomon Islands, Australia and New Caledonia) ( Mehrotra et al. 2021).

173. Gymnodoris inornata (Bergh, 1880) * ( Fig. 8F ) Previous HK record: Orr (1980 1981), Lin (1990b), Rudman and Darvell (1990), Jensen (1998), Coleman (2008), Gosliner et al. (2008).

Distribution: Indo-West Pacific (from South Africa to Japan, Australia and New Caledonia) ( Mehrotra et al. 2021).

174. Gymnodoris nigricolor Baba, 1960 * ( Fig. 8G ) Previous HK record: Tsi and Ma (1982), Rudman and Darvell (1990) (as Gymnodoris cf. nigricolor ), Jensen (1998) (as Cratena nigricolor ).

Distribution: Indo-West Pacific ( Hong Kong, Japan, Solomon Islands, the Red Sea) ( Coleman 2008; Mehrotra et al. 2021).

175. Gymnodoris plebeia (Bergh, 1877)

Previous HK record: Coleman (2008).

Distribution: western and central Pacific ( Hong Kong, Japan, New Caledonia, Marshall Islands, Hawaii) ( Kay and Young 1969; Coleman 2008).

176. Gymnodoris subflava Baba, 1949

Previous HK record: Rudman and Darvell (1990), Jensen (1998).

Distribution: Indo-West Pacific (from Andaman Islands to Hong Kong, the Philippines and Japan) ( Jensen 1998; Debelius and Kuiter 2007).

177. Gymnodoris sp. * ( Fig. 8H )

Previous HK record: Rudman and Darvell (1990).

178. Lamellana gymnota Lin, 1992

Previous HK record: Lin (1992), Jensen (1998). Distribution: Hong Kong ( Jensen 1998).

179. Polycera fujitai Baba, 1937 * ( Fig. 8I ) Previous HK record: Orr (1980 1981), Morton and Morton (1983), Jensen (1998). Distribution: western Pacific ( Hong Kong, Japan, New Zealand) ( Jensen 1998; Miller 2001).

180. Polycera sp. * ( Fig. 8J ) Previous HK record: None.

Figures

Fig. 8. (A) Roboastra cf. tentaculata; (B) Gymnodoris alba; (C) Gymnodoris amakusana; (D) Gymnodoris citrina; (E) Gymnodoris impudica; (F) Gymnodoris inornata; (G) Gymnodoris nigricolor; (H) Gymnodoris sp.; (I) Polycera fujitai; (J) Polycera sp.; (K) Kaloplocamus acutus; (L) Kaloplocamus ramosus; (M) Plocamopherus ceylonicus; (N) Plocamopherus tilesii; (O) Pleurobranchaea brockii; (P) Berthellina citrina; (Q) Pleurobranchus forskalii; (R) Pleurobranchus peronii. Photographs by Tim Lam (A, C, F–H, L, M, O, P), AFCD (B, E, Q), Sze Yiu Ng (D, K), WK Chow (I), Gomen See (J, N) and Wai Hong Yiu (R).