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free motion of the neck being impeded : in the seventh, eiglith, 

 nintli, tenth, eleventh, and tvvelfth these processes gradually shorten, 

 and in the tvvelfth and third can hardly be said to be produced : 

 they lengthen in the fourth and fifth, and in the sixth reach the 

 masimum. In the sixth vertebra we notice the commencement of 

 two processes proceeding from the superior part of the anterior face 

 of the vertebrce, a little external to the median Hne, vvhich give firm 

 attachraent to the museles of the neck : in the succeeding vertebrce 

 these processes are more fully developed till they reach the tenth, 

 after which we observe no trace of them ; but instead of them, in 

 the eleventh, tvvelfth, and thirteenth we have a very prominent an- 

 terior spinous process: in the tvvo lašt it is bifid. In the last (the 

 thirteenth) the transverse processes are extended laterally, and are 

 curved acutely backwards, leading itnmediately to the sliape of the 

 dorsal vertebrce. 



" These are nine in number. The first has verj; extensive motion : 

 in the second the motion is much diminished: and the diminution 

 of motion is continued as far as the seventh veiiebra, the last two 

 having no motion whatsoever. The posterior spinous processes have 

 less development than is usual in most Birds. The anterior ones are 

 very little produced. The transverse processes do not overlap each 

 other. The oblique processes strongl)' resemble those of the neck. 

 In the first vertebra the anterior spinous process is most prominent, 

 and in the second, third, fourth, fifth, and sixth the process is bifid 

 and less prominent. 



" The sacral region is composed of tvvelve bones, all anchylosed 

 together, of vvhich the upper four might almost be regarded as lum- 

 bar, for they are unconnected to the ilia, except by ligament. The 

 canalis vertebralis is broadest in the tenth of these vertebra'. 



" There are eight caudal vertebrce, each furnished vvith transverse 

 and spinous processes, and also, on their anterior face, vvith tvvo 

 processes arising one on each sitle of the median line, measuring in 

 length, on an average, 6 lines. The eighth, or last, is in length 2 

 inches, conical, vvith the base towards the body, and having the tip 

 scabrous, for the insertion of musele : on the superior part of the 

 anterior face there is a groove extending about one third of its 

 length. About half an inch from the tip there is a thickening of sub- 

 stance, giving the appearance of the tip having been originally se- 

 parate. The canalis vertebralis extends a short vvay dovvn the bone. 

 The seventh vej-tebra is united to the eighth by anchylosis. 



" The ribs are nine in number, and of the u>ual torni : the tvvo 

 upper ones are not connected vvith the sternum. The oblique pro- 

 cesses are situated halfvvay betvveen their vertebral and sternal ex- 

 tremities. They commence cartilaginous at the inferior margin of 

 each rib, and are about 5 lines broad at their origin : tovvards their 

 termination they spread laterally to the vvidth of I inch. As they 

 approach the lovver rib they get gradually thinner. In the first and 

 last rib they are totally vvanting. The last rib, at its centre, has a 



