PROVINCIAL MUSEUM, HALIFAX, N. S. PERKINS. 



end. All have a strong inferior cariaa, but it decreases towards 

 the caudal end. 



The first vertebra of the second set, plate IT, appears to 

 belong to the anterior portion of the series, third or fourth. The 

 centrum is 68mm. (2f inches) high, 71mm. (2f inches) wide, 

 and 85mm. (3f nches) long. As in all lumbars, the transverse 

 processes are, compared with the dorsal, thin 'and flat. All are 

 so broken that it is not possible to ascertain the length with 

 exactness. 



The most typical cetacean lumbar is that shown in the third 

 figure from the top in plate IV. This is more perfect than the 

 other lumbars, and the left transverse process is nearly complete. 

 It is the only process that shows the widened ends found 

 normally in all these vertebrae. This was probably the third or 

 fourth in tha actual series. The measurements are as follows : 

 height of centrum 69mm. (2f inches), width 71mm. (2 13-16 

 inches), length 87mm. (3-J inches). The transverse process is 

 114mm. (4^ inches) long, and 60mm. (2f inches) wide at the 

 end. The length was originally slightly greater, as the end is 

 somewhat broken. In all cetacea the spines of the lumbars are 

 very long, and were these present in this specimen they would 

 give a different aspect to the series. The remaining lumbars do 

 not offer any essential differences. That which appears to be 

 the last, has the centrum rather more nearly circular, the width 

 being only a little more than the height, and the neural canal 

 is considerably less, its width being 35mm. (If inches). 



Caudal vertebrae. The eight remaining vertebrae are con- 

 sidered caudal. As the lower series, plate II, indicates, there 

 is much difference between the first and the last lower right hand 

 figure, plate IV. The wHole series of caudals, except one as 

 stated before, is shown in plate II, lower series. If there were 

 originally twenty-six caudals, of course this series must be very 

 incomplete. 



