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Dinornis, presented good distinctive characters; and many series, of greater or less extent, 
were formed in the progress of the work ; such series belonging, respectively, to the 
same individual skeleton of a different species of Dinornas. 
Not to dwell needlessly on the different steps of this work of arrangement, in which 
I was efficiently aided by Mr. Flower, the experienced Articulator, | may proceed to 
state, that, after classifying the pelvises according to their size and probable species, 
one of these, which in general size and in the proportions of acetabulum accorded with 
the femur of Dinornis elephantopus, was found fo present a well-marked anterior articular 
surface both on the centrum and on the fore part of the peculiarly long and strong 
square-shaped spine ; the articular surface on the spine being unusually rugged. 
Among the vertebr previously classed as the ‘last dorsal,’ was found the one that 
had articulated with the above pelvis; and that dorsal vertebra terminated a series of 
seven dorsals, progressively decreasing as they advanced forwards, and indubitably 
belonging to the same individual bird. 
The last dorsal vertebra of the Dinornis is characterized by a pair of tubevous processes 
(hypapophyses) from the under part of the centrum, close to the hind border: in the 
present skeleton of the Dinornis elephantopus, they are an inch apart: thie vertebra is 
also characterized by the height of its spine, which is subquadrate ; slightly expanded 
above; smooth at the sides, but rough at the fore and back parts. The height of this 
spine is four inches. There is a rudimentary tubercle at the middle of the under surface 
of the centrum near the anterior border, The articular surface at that end is concave 
transversely, convex vertically. ‘The parapophysis is a large surface with slightly raised 
borders near the fore part of the centrum, The diapophysis is short and thick: at its 
under part is the pneumatic orifice. ‘The proximal end of the rib is strongly bifurcated 
to articulate with the two processes ; it supported an appendage, but does not join the 
sternum. ‘The above-described vertebra is the seventh dorsal, or the last free vertebra 
that supports moveable ribs (Pl. LX. D 7). 
The sixth dorsal (id. D6) is narrower and with a spine somewhat shorter than the 
seventh. ‘The posterior hypapophyses are nearer together: the anterior one is more 
developed: the spine, besides being shorter, is more compressed ; but the diapophysis 
is longer, and the base of the neural arch is of greater fore-and-aft extent. The rib is 
stronger and longer ; it supported an appendage, but is equally free from junction with 
the sternum. At the under part of the base of the diapophysis is the large pneumatic 
opening. 
The fifth dorsal (ib, D 5) presents a corresponding decrease in transverse and vertical 
diameter, without any loss of fore-and-aft extent. The posterior hypapophyses have 
coalesced into a single process: the anterior hypapophysis is a strong ridge, with the 
fore part a little in advance of the anterior articular surface of the centrum. The 
shorter and more compressed spine has a somewhat greater fore-and-aft breadth than 
in the sixth vertebra: its height is not quite three inches. 

