Chlamys arakawai (Nomura, 1935)
NOMURA, S. 1935. Miocene Mollusca from the Nisi-Tugaru District, Aomori-ken, Northeast Honsyu, Japan. Saito Ho-on Kai Museum of Natural History Research Bulletin, 6: 19-81, pls. 2-8 [p. 41, pl. 4, figs. 1-2]
1935 Pecten (Pecten) arakawai Nomura, 1935
1954 Coralichlamys shigemai Hirayama, 1954
1974 Chlamys oidensis Hatai, Masuda & Noda, 1974
1954 Coralichlamys shigemai Hirayama, 1954
1974 Chlamys oidensis Hatai, Masuda & Noda, 1974
«Chlamys oidensis Hatai, Masuda and Noda, 1974, from the middle Miocene Oido Formation in Miyagi Prefecture, Northeast Japan, was formerly considered to be closely related to Ch. (N.) kaneharai (e.g. Hatai et al., 1974). However, its holotype (IGPS 64419; articulated valve) is considered to fall within the intraspecific variation of Chlamys (Leochlamys) arakawai (Nomura, 1935), as shown by Sato (1991). On the other hand, its paratype (IGPS 94427; left valve) is referred to Chlamys (Leochlamys) ingeniosa (Yokoyama, 1929) on the basis of the shell outline and external shell sculpture. The left valves of presumable topotypes of Ch. (L.) ingeniosa were first described and illustrated by Nomura and Tazaki (2007).»
MATSUBARA, T., I. NORO, Y. MATSUURA & T. IRIZUKI. 2014. Miocene Mollusca from the Ichibu Formation on Nishinoshima Island, Oki Islands, Southwest Japan. Paleontological Research, 18 (1): 6-32, figs. 1-11. [p. 19]
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