338 MR. W. H. FLOWER ON THE OSTEOLOGY OF THE SPERM-WHALE. 
almost confluent with the bulky, rounded metapophyses. After this the transverse process 
eradually resolves itself more distinctly into the ascending and forward-directed rounded 
metapophysis, and the slightly descending and backward-directed diapophysis. ‘The 
latter rapidly diminish in bulk, the last (tenth, fig. 7) being a comparatively slender 
conical process which, on the right side, meets within a line’s breadth an ascending 
tubercle of the inferior transverse process to be presently described; on the left side 
the end of the process appears to be broken off. On the eleventh dorsal vertebra there 
Fig. 8. 
Eleventh dorsal vertebra and right rib. 
is no trace of diapophysis, except perhaps a slight thickening on the corresponding part 
of the right neurapophysis. The free extremities of all these transverse processes (except 
the tenth) present roughened articular facets for the tubercles of the corresponding ribs. 
In the first this facet has,a compressed oval figure, with the long diameter vertical ; 
in the second it is subcireular; in the third, fourth, and fifth triangular; in the 
remainder oval, with the long diameter antero-posterior. 
On the upper pait of the sides of the bodies are conspicuous articular facets for the 
reception of the heads of the ribs. These deserve particular attention for the pecu- 
liarities they present in the hinder part of the region. They are disposed as follows :— 
‘The first vertebra has one facet on its hinder edge for articulation with the second rib. 
It is in the form of a low rough tuberosity. The second vertebra has a cup-shaped 
depression, with elevated margins on its hinder edge, for the third rib. The third 
vertebra has a similar facet for the fourth rib. The fourth vertebra receives in the 
same manner the fifth rib. The fifth vertebra shows on its anterior edge an indication 
of an articular surface for the hinder part of the fifth rib, and a large facet on its 
hinder edge for the sixth rib. The sixth vertebra has a more strongly marked 
articular facet on the anterior edge, while that on its hinder edge (for the seventh rib) 
is of reduced dimensions. In the seventh vertebra the articular surface near its front 
oe 
