Robaia robai ( Kuroda, 1929 )

Lisitsyna, Kseniya N. & Kamenev, Gennady M., 2024, New and rare bivalve species for the fauna of the Kuril Islands (northwestern Pacific Ocean): A study of materials collected over 70 years of expeditions (from 1949 to 2019), Zootaxa 5523 (2), pp. 231-253 : 237

Robaia robai ( Kuroda, 1929)

( Fig. 2 I, J )

Leda (Leda) robai Kuroda, 1929: 9 (3); Appendix, pl. 6, figs. 6,7.

Robaia robai ( Kuroda, 1929) — Kamenev 2013: 127, figs. 2G–J.

Material examined: four specimens from the Kunashirsky Strait (200–300 m).

Distribution: Sea of Japan; Japan (Pacific Ocean); Kunashirsky Strait; Sea of Okhotsk (83– 2,900 m) ( Scarlato 1981; Kurozumi & Tsuchida 2000; Kantor & Sysoev 2005; Okutani, Saito & Haga 2009; Lutaenko & Noseworthy 2012; Kamenev 2013; Okutani & Saito 2014, 2017; Kurozumi, Tsuchida & Okutani 2017).

Remarks: This is a new record from the region of the Kuril Islands. Scarlato (1981) described this species as Robaia habei Scarlato, 1981 . Kamenev (2013) compared the type material, descriptions, and illustrations of R. habei and Robaia robai ( Kuroda, 1929) ( Kuroda 1929; Scarlato 1981). The analysis showed that R. habei is a synonym of R. robai .

Figures

FIGURE 2. New and rare bivalve species for the fauna of the Kuril Islands. (A, B) Acila divaricata (Kunashir Strait, 200 m, shell length 29.7 mm). (C, D) Acila insignis (Yuri Island, 1000 m, shell length 11.0 mm). (E, F) Nuculana ensiformis (Shikotan Island, 200 m, shell length 22.5 mm). (G, H) Poroleda ushakovi (Shumshu Island, 820 m, shell length 17.1 mm). (I, J) Robaia robai (Kunashir Strait, 300 m, shell length 16.3 mm). (K, L) Yoldia hyperborea (Paramushir Island, 215 m, shell length 19.0 mm). (M, N) Scanning electron micrographs of Huxleyia pentadonta (Paramushir Island, 214 m, shell length 2.3 mm). (O, P) Samacar kurilensis (Iturup Island, 265–270 m, shell length 16.5 mm). (Q, R) Tetrarca boucardi (Shpanberg Strait, 55 m, shell length 20.0 mm). (S, T) Limopsis oliveri (Urup Island, 50 m, shell length 9.0 mm). (U, V) Limopsis vaginata (Iturup Island, 600 m, shell length 26.3 mm).