THE WHALEBONE WHALES OF THE AVESTERN NORTH ATLANTIC. 



253 



BALJENA GLACIALIS BONNATERRE. EUROPEAN AND AMERICAN. 



SKULL. 



Sex and age. 



Total length of whale. . . 

 " " " skeleton. 



Length of skull (straight) I 



Greatest breadth at orbits 



Length of rostrum (straighl ) 



Breadth of rostrum at middle 



Length of nasals 



Breadth of 2 nasals distally 



" " orbit, point to point 



Length of mandible (straight) 



" " " (on curve) 



Depth " " at middle 



End of nasals to end of rostrum (on curve) 



•J .if 





i ad. 



500 + 

 44' 9^^ 



80.9 



5.1 



6.6 



5-4 

 90.1 



44 9 



150.0 



% 



62.0 



79.0 



9.3 



7.8 



II. o 



4.8 

 98.0 



[•17.0 

 7.3 

 14 





c E 



37'o"+ 



i 

 66 

 76, 

 14 



7- 



7. 



5. 



96, 



108 



6. 



78, 



>'S 



e c o 



cam 



45 3 



124.0 



* 

 68.5 

 78.2 



7-3 



6.5 



106.0 



110.5 





40 4 



35' 7"» 



1145 



% 



64.6 



81.3 



7.4 



8.3 



5-7 



93.4 



101.3 



0.8 

 ■■0.0 



-■sjz 





jr- 



37 o 



96.5" 



68.1 



78.8" 



8.3 



7.8" 



6.4 



95.4 



105.7 



7-2 



■• !■ 



l.e.isl. iroiii ligure. 

 '■ Straight. 



' From " hind angle," /. e., base of rostrum; hence smaller. = Imm uyiii-. 



' On comparing Cjasco's figures it will be seen that the rostrum in the top view is much toi> short. 



« Total length given only approximately l)y Capellini ; hence taken from Gasco, 2 27 m. 



' " Krom point of meeting of internal lateral margin with inferior margin of the condyle" ; hence, a smaller per cent. 



S fonrlalc cnari^rl fnn miirVi ^ Krfim Mflllifaillt. "* LcaSt. 



* Caudals spaced too much. 



" From Manigault. 



' Twice J^. 



