FOSSILS FROM THE ENVIRONS OF TOKYO. 67 



161. TF/TKN AI 1. TRRABIANS Lam. 



ri. IV. Fig. 3. 



SowKRHY, Thes. Coneli., I., p. 20.— Syst. Conch. Cab., VII. 2, ]). 77, 

 and p. 208. 



SliiiKigawa. (very rare). 



162. PECTEN PULCHELLIMUS ïok. 



PI. IV. Fig. 4. 



Shell small, round, radially ribbed ; ribs sixteen in number, 

 without any distii-ct limit toward the interstices ; surface without 

 concentric ribs, but with a few undulating lines of growth ; ears 

 unequal, the anterior one more prominent, radially striated, with 

 a distinct notch below, the posterior one serrated. Length 

 ymm. iieigi^t 10"™. 



()ji (lare). 



ANOmilD/E. 

 163. ANOMIA AFF. PATELLIFORMIS Linné. 



Brauns, Geol. En v. Tokio, p. 49. — ^Wood, Crag Moll, IL, p. IL — 

 Jeffrey, Moll. * Lightening ' and Pore. Exp. 



Tabata and Oji (frequent), Shinagawa (rare). 



Living specimens were collected near Misaki (Sagami). 



Ä. patelliformis L. is found as a fossil in the Cor. Crag 

 (Sudbourn and Sutton), Red Crag (Sutton, Bawdsey, and Wal- 

 ton Naze), Pliocene and Diluvium of Scandinavia, Great Britain, 

 Ireland, Belgium, Vienna Basin and Italy. It is also known 

 to live in Britain, Scandinavia, Faroe Is., Mediterranean and 

 Adriatic Sea, N. W. America, and probably in Japan. 



