Acanthochitona britayevi Sirenko, 2012

Sirenko, Boris I. & Zhang, Junlong, 2019, Chitons (Mollusca: Polyplacophora) of Hainan Island and vicinity, South China Sea, Zootaxa 4564 (1), pp. 1-40 : 30

Acanthochitona britayevi Sirenko, 2012

( Fig. 4C )

Acanthochitona britayevi Sirenko 2012: 91 , pl. 14 A, D; figs 29, 30.

Notoplax (Notoplax) formosa ; Van Belle 1980: 34, pl. 1, fig. 6 (non Reeve 1847, fide Van Belle 1982).

Notoplax (Notoplax) sp.; Van Belle 1982: 480, fig. 5; Bullock & Harper 1994: 47, pls. 13D, 14C, 15G–I, 16E–F; Xu 2008: 458.

Type material. Holotype ZISP 2179 .

Type locality. South China Sea , off South Vietnam, Nhatrang Bay, Nok Island .

Material examined. South China Sea, Hainan Island, Xincun, Nanwanhou Island, rocks, 1 spm, BL 8.0 mm, 20.04.1958.

Distribution. South China Sea, Vietnam from Nhatrang Bay to Da Nang, and China, Hainan and Hong Kong, intertial–0.5 m.

Remarks. Van Belle (1980) reported this species from Hong Kong for the first time, but he identified it as Notoplax (Notoplax) formosa (Reeve, 1847) . Later Van Belle (1982) changed his identification into Notoplax (Notoplax) sp. Bullock & Harper (1994) followed Van Belle (1980). Owing to the good drawings of Piet Kaas in Van Belle (1982), the good figures and description of Bullock & Harper (1994), we identify this species as Acanthochitona britayevi .

Figures

FIGURE 4. Complete specimens of species of genera Plaxiphora, Placiphorella, Acanthochitona, and Cryptoplax: A. Plaxiphora bucklandnicksi, Hainan Island, Sanya, stn 13, BL 5.0 mm; B. Placiphorella stimpsoni, Hainan Island, Sanya, BL 23.0 mm; C. Acanthochitona britayevi, Hainan Island, Xincun, BL 8.0 mm; D. Acanthochitona intermedia, Xisha Islands, MBM 100328 BL 11.0 mm; E. Acanthochitona lanae, Hainan Island, stn 1 BL 5.0 mm; F. Cryptoplax larvaeformis, Xisha Islands, 57-419, BL 35.0 mm; G. Cryptoplax oculata, Xisha Islands, 57-419, BL 35.0 mm.