6 ON THE SYSTEMATIC POSITION OF ZEUGLODON. 
The dorsal vertebre are also like those of the Seal. The transverse processes 
are very short, and the distinct posterior zygapophyses, horizontally placed, are 
characters which do not occur in the Cetacea. 
In the vertebra next represented, the laterally expanded neural canal and the 
Fig. 6. VERTEBRA FROM THE PostERIoR DorsaL Recron (front view). 
(After J. MULLER.) 
position of the costal facet are just as in the posterior dorsal vertebree of a common 
Seal. 
As regards the remarkable elongation of the vertebral bodies in Zeuglodon, I 
may simply say that in the Seals the bodies are certainly somewhat long, and that 
the epiphyses are slow of ossifying, even though these characters do not attain in 
recent Seals their remarkable prominence in the Zeuglodon. 
In the next place, there is here copied MUuier’s figure of a lumbar vertebra of 
his Zeuglodon. We note in it the transverse processes placed low down on the body 
Fig. 7. Lumpar VERTEBRA OF ZEUGLODON. Fig. 8. Lumpar Vertesra or Phoca vitulina. 
(After J. MULLER.) 
of the vertebra, and the muscular apophyses high up on the arch. The adjacent 
figure shows the lumbar vertebra of a common Seal: the two are almost identical. 
Contrast them with the lumbar vertebra of a Dolphin—the enormous transverse 
processes, set high up on the body of the vertebra, the long dorsal spine, the tiny 
neural canal. 
Regarding the limbs, I have but a word to say. Of the scapula a fragment 
only is known. It shows a distinct spine, a long, curved acromion, and no coracoid 
