BOSTON 



JOURNAL OF NATURAL IIlSTOliY, 



CONTAINING 



PAPERS AND COMMUNICATIONS, 



KEAU BEFORE THE 



iSoston .Socicts of TJ^Tatural f^iniovs, 



AND PUBLISHED BY THEIR DIRECTION. 



VOL. VIL — NO. IV. 



PUBLISHING COMMITTEE. 



AUGUSTUS A. GOULD, 

 CHARLES K. DILLAWAY, 



SAMUEL L. ABBOT, 

 JEFFRIES WYMAN, 



SAMUEL H. SCUDDER. 



B ST N 

 1868. 



