BARROAV'S GOLDENEYE. 



275 



VOL. VI.] 



tliis part, when viewed from the side, has an even upward 

 slope, and when seen from the front is incKned to be 

 grooved longitudinally rather than elevated. By passing 

 the finger up the forehead from the base of the upper 



FRONTAL BOXE OF COMMON GOLDENEYE. 

 Female. March. Yorkshire. 



FRONTAL BONE OP BARROW'S GOLDENEYE. 

 Female. Jan. 17. North Iceland. 



mandible, this " boss " in Barrow's Goldeneye could easily 

 be detected in most of the specimens to which I have 

 had access, either as a Mell-defined " lump " or as a 

 smooth swelling. Unfortunately, however, in some speci- 

 mens it appears to be an uncertain cliaracter, otherwise 



