 CM 21314 - Detail - UMUT Paleontology Collections - University Museum, University of Tokyo, Japan UMUT CM 21314 UMUT CM 21314Macoma tokyoensis MakiyamaOyama, K. 1973 p. 112, pl. 52, fig. 8a, bMacoma Macoma tokyoensis MakiyamaTaki, I. Oyama, K. 1954 pl. 30, fig. 4Yokoyama, M. 1922a p. 143, pl. 10, fig. 4 