142 ON A SKELETON OF A WHALE IN THE 



ends of the centrum are nearly flat, the posterior slightly 

 concave. 



The following vertebrae are probably nearer the end of the 

 series, as it appears that between first and second, in the figure, 

 three or four bones are wanting. 



As the figures show, in the second vertebra, the neural arch 

 is quite destroyed, but the left transverse process is in very good 

 condition. The centrum is much heavier than in the first. Its 

 dimensions are: length 72mm. (215-16 inches), width 

 65mm. (2^ inches), height 60mm. (2 5-16 inches), neural 

 canal 70mm. (2f inches) wide. 



The transverse process is stout, much thickened at the end, 

 flat above, convex below. It is nearly perfect, and is 76mm. 

 (3 inches) long, 32mm. (1^ inches) wide next the centrum, 

 and 51mm. (2 inches) wide and 25mm. (1 inch) thick at the 

 end. This bone is shown in plate IV, upper figure. In the 

 third bone, which is probably the eighth or ninth dorsal, we 

 have perhaps the most complete of the series. The neural arch 

 and transverse processes are fairly complete, as the figures show. 

 The centrum of this vertebra is 61mm. (2| inches) high, 70mm. 

 (2f inches) wide, and 76 mm. (3 inches) long; the neural 

 canal is 37mm. high, and 57mm. wide. The left transverse 

 process, which is most complete, is 92mm. long. The last dorsal 

 in the specimen, fourth of 1st series of plate II, is perhaps the 

 eleventh. The centrum, especially beneath, has the characters 

 of the lumbars. It is 65mm. (2^ inches 1 ) high, 70mm. (2J 

 inches) wide, and 82mm. (3J inches) long. The left transverse 

 process is quite complete, and shows all the features of that part 

 of the bone. It is 121mm. (4J inches) long. 



Lumbar vertebrce. In the absence of chevrons it is difficult 

 to determine the point where the lumbars pass into the caudals, 

 but five of the bones aire considered as lumbar. The bodies 

 lengthen and the vertical diameter increases towards the caudal 



