152 



BULLETIN 93, UNITED STATES NATIONAL MUSEUM. 



Fic4. 43. BALANUS BALANUS (LINNAEUS), a, LABRUM. 'b, IGTH TO ISTH SEGMENTS OF 

 CIRRUS vi, ENGLAND, c, PART OF THE 16'ra SEGMENT OF CIRRUS iv. d, LABRUM. 



e, DISTAL PART OF A SEGMENT OF THE ANTERIOR RAMDS OF CIRRUS III. f, INTERMEDIATE 

 SEGMENTS OF CIRRUS VI. fj, MAXILLA. h, PENIS. i, FIRST CIRRUS. BAR HARBOR, 



MAINE. ;", 17TH AND ISTH SEGMENTS OF CIRRUS vi. fc, MANDIBLE. BAY OF FUNDY. 



