ART. 9 A POLLACK WHALE FROM FLORIDA MILLER. 11 



palatine and the more robust articular portion of the squamosal of 

 the Japanese specimen are conspicuous features. A character which 

 may be more important is seen in the different backward projection 

 of the exoccipitals and the postero-external angle of the squamosal 

 behind the level of the occipital condyles. This backward projection 

 is slight in the photograph of the skull from Florida, conspicuous 

 in the one from Japan. Apparently the orientation is nearly the 

 same in the two photographs, but the difficulty of making an exact 

 comparison of such a character between two skulls of such large size, 

 one of whicli is in New York and the other in Washington, is so great 

 that not much reliance can be placed on the peculiarities which ap- 

 pear to exist. 



In the cervical vertebrae there are many features of difference 

 between the two specimens. These can be best understood by com- 

 j)aring my plates 5 to 8 with Mr. Andrews's text figures 14 to 17. 

 In general they consist principally in the greater width relatively 

 to the height in the Japanese specimen and in differences in the 

 angle of outward projection of the processes when viewed from the 

 side. In reckoning the height the spinous process is not to be in- 

 cluded, as this is uniformly low in the relatively immature Japanese 

 skeleton. The differences, as will at once be seen, are conspicuous, 

 extending even to the shape of the centra; but it is impossible to 

 say how far they are due to the considerable disparity in the age 

 of the two animals, or to possible specific features which may eventu- 

 ally be found to distinguish the representatives of BalfEnoptera 

 h&realk in the tAvo oceans. In comparing the figures of the other 

 vertebrae, my plates 12 to 15, Andrews's text figures 18 to 28, the 

 fact must be kept in mind that the centra of the Japanese specimen 

 lack the epiphyses. 



Other peculiarities will be seen on comparing the figures of the 

 scapula, the limb bones, and the jugal. The jugal of the Japanese 

 specimen (pi. 19, fig. 2) is remarkable for its robustness as compared 

 with that of the much older individual from Florida (pi. 19, fig. 1). 



MEASUREMENTS. 



Length of skull (straight), 3 m. 4S0 mm. 



Greatest hreadth (squamosal), 1 m. 600 mm. 



Breadth of orhital wing of frontal at distal end, 390 mm. 



Length of maxillary along upper surface, 2 m. 550 mm. 



Length of intermaxillary along upper surface, 2 ra. 690 mm. 



Breadth of beak at middle (curved) 670 mm. 



Length of nasal, 260 mm. 



Breadth of exposed portion of two nasals at distal end, 135 mm. 



Breadth of exposed portion of two nasals at proximal end, 90 mm. 



Length of mandible (straight), 3 ni. 290 mm. 



Length of mandible (curved), 3 m. 415 mm. 



Depth of mandible at middle, 275 mm. 



Depth of mandible through coronoid process, 370 mm. 



