56 ART. 2. S. TOKUNAGA. 



resemblance to the Japanese form, but tlie latter is to be dis- 

 tinguished by the thickness of the shell and the prominence 

 of the umbone. 



Shinagawa (frequent), ( )ji (rare). 



Order Asiphonida. 



NUCULID/E. 



139. Nü( ULA MIRABILIS Hinds. 



BiiAUNs, Oeol. Env. Tokio, j). 46. — -AVood, Crag Moll., II., p. 82. — 

 DuNKEE, Index ]Moll. Mari? Jap., p. 238.— Woodward, INIan. Moll, 

 pi. 17, fig. 18. 



Shinagawa (frequent). 



Living : Tokyo Bny, Kobe, Nagasaki and Kagoshima. 



This is the species taken by Bratjns for Nucida cohholdiiv 

 Sow. as I am now convinced by an examination of the specimens 

 left by him in the Museum of our Science College. 



m. NUCULA INSIGNIS Gld. 



Brauns, Geol. Env. Tokio, p. 46. — Goulj), Otia Conch., p. 175.— Wood, 

 Crag. Moll., II.. p. 82.— Woodward, Man. Moll., p. 117. 



Shinagawa (abundant) ; Oji (abundant). 



Living: Hakodate, and East Coast of Japan at ?u° N. Lat. 



This species was also taken by Brauns for N. cobboldiœ Sow. 



141. LEI)A (ONFUSA Hanlkv. 



Brauns, Geol. Env. Tokio, p. 49. — Lischke, Jap. Äleercs-Conch., III., 

 p. 109. 



