Rhyssoplax venusta Hull, 1923

Figs. 1, 2, 12B

Rhyssoplax venusta Hull, 1923, p. 165, pl. 26, figs. 1–4, 9–12; Iredale, Hull, 1926, p. 179, 180, pl. 19, figs. 28–35, 37; Dawydoff, 1952, p. 113; Sirenko, 2012, p. 71, pl. 12F; figs. 16, 17; Sirenko, 2019, p. 8, fig. 2F.

Chiton (Rhyssoplax) venusta (Hull, 1923): Leloup, 1952, p. 56, text-fig. 19, pl. 5, fig. 1, pl. 6, fig. 2.

Chiton (Rhyssoplax) venustus (Hull, 1923): Kaas, Van Belle, 1980, p. 139; Kaas, Van Belle, 1998, p. 196; Kaas et al., 2006, p. 229, fig. 92, map 37 (bibliography and synonymy).

Ty p e m a t e r i a l. Holotype (AM C.49545) and two paratypes (AM C.170744).

Ty p e l o c a l i t y. Queensland, Keppel Bay, Emu Park.

M a t e r i a l e x a m i n e d. Papua New Guinea, Bismarck Archipelago, Manus Island, Silver Sound, 02°01′ S, 146°53′ E, R / V Dmitriy Mendeleev, 18 cruise, sample 4, 1 m, 1 spm, BL 14 mm (ZISP 2302), 27.01.1977 .

D i s t r i b u t i o n. This species is widely distributed in the western Pacific and was found in north-eastern Queensland, Papua New Guinea, Vietnam and Guangxi Province of southern China. It is first find of the species near Papua New Guinea. The species lives near Vietnam and southern China at depth from 0 to 20 m.

R e m a r k s. The studied specimen was damaged. All its features (shell, armature of girdle and head of major lateral teeth of radula match the original description and the drawings of Hull [1923]. Slit formula of this specimen is 8/1/15.