Trinchesiidae Nordsieck, 1972

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 : 9

Family Trinchesiidae Nordsieck, 1972

52. Catriona pinnifera (Baba, 1949) * ( Fig. 2R ) Previous HK record: None.

Distribution: western and central Pacific ( Hong Kong, Japan, Hawaii) ( Baba 1961; Gosliner 1979; Present study).

53. Phestilla fuscostriata Hu, Zhang, Xie & Qiu, 2020 * ( Fig. 3A )

Previous HK record: Wong et al. (2017) (as Tenellia sp. ), Hu et al. (2020a).

Distribution: western Pacific ( Hong Kong, Thailand) ( Mehrotra et al. 2021).

54. Phestilla goniophaga Hu, Zhang, Yiu, Xie & Qui, 2020 * ( Fig. 3B )

Previous HK record: Orr (1981) (as Phestilla sp. ), Coleman (2008) (as Phestilla sp. ), Gosliner et al. (2008) (as Phestilla sp. ), Hu et al. (2020b).

Distribution: western Pacific ( Hong Kong, Palau) ( Hu et al. 2020b).

55. Phestilla lugubris (Bergh, 1870) * ( Fig. 3C ) Previous HK record: Orr (1980) (as Phestilla sibogae ), Morton and Morton (1983) (as Phestilla sibogae ), Jensen (1998) (as Phestilla sibogae ).

Distribution: Indo-Pacific (from East Africa to New Caledonia and Hawaii) ( Mehrotra et al. 2021).

56. Phestilla melanobrachia Bergh, 1874 * ( Fig. 3D, E ) Previous HK record: Orr (1981), Morton and Morton (1983), Jensen (1998), Gosliner et al. (2008).

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

57. Phestilla sp. * ( Fig. 3F )

Previous HK record: None.

58. Trinchesia diversicolor Baba, 1975

Previous HK record: Orr (1981) (as Trinchesia sp. ), Gosliner et al. (2008).

Distribution: western Pacific ( Hong Kong, Taiwan, Japan, South Korea) ( Baba 1975; Min 2004; Jie and Chan 2009).

59. Trinchesia ornata (Baba, 1937) * ( Fig. 3G ) Previous HK record: Orr (1980) (as Trinchesia cf. ornata ), Jensen (1998) (as Trinchesia cf. ornata ), Coleman (2008), Gosliner et al. (2008).

Distribution: Indo-West Pacific (from South Africa to Russia and Australia) (Nimbs et al. 2016).

60. Trinchesia yamasui ( Hamatani, 1993) * ( Fig. 3H ) Previous HK record: None.

Distribution: Indo-Pacific (from the Red sea to Japan, Australia and Marshall Islands) ( Hamatani 1993; Yonow 2015; Nimbs and Smith 2016).

61. Trinchesia sp. * ( Fig. 3I )

Previous HK record: None.

Figures

Fig. 2. (A) Dermatobranchus albus; (B) Dermatobranchus tongshanensis; (C) Dermatobranchus sp. 1; (D) Dermatobranchus sp. 2; (E) Bornella stellifera; (F) Doto sp. 2; (G, H) Doto sp. 3; (I) Lomanotus vermiformis; (J) Lomanotus sp.; (K) Notobryon wardi; (L) Melibe cf. japonica; (M) Abronica purpureoanulata; (N) Coryphellina lotos; (O) Flabellina sp.; (P) Eubranchus rubropunctatus; (Q) Samla bicolor; (R) Catriona pinnifera. Photographs by Tim Lam (A–E, G, I, L, M, R), AFCD (F, H, P), Alice Au (J), Tom Chan (K), Gary To (N), AFCD | Henry Tat Heng Ho (O), Henry Li (P) and Markus Rummel (Q).

Fig. 3. (A) Phestilla fuscostriata; (B) Phestilla goniophaga; (C) Phestilla lugubris; (D, E) Phestilla melanobrachia; (F) Phestilla sp.; (G) Trinchesia ornata; (H) Trinchesia yamasui; (I) Trinchesia sp.; (J) Unidentia aliciae; (K) Madrella ferruginosa; (L) Marionia echinomuriceae; (M) Marionia cf. rubra; (N) Tritonia sp.; (O) Actinocyclus papillatus; (P) Chromodoris dianae; (Q) Chromodoris lineolata; (R) Chromodoris magnifica. Photographs by AFCD | Henry Tat Heng Ho (A), Gary To (B), Tim Lam (C, F, J, K, N), AFCD (D, E, H, L, M, O, P), Grape Tang (G), Alice Au (I), Gomen See (Q) and AFCD | Chi Hung Yip (R).