218 DR. J. MURIE ON THE ANATOMY [Feb. 14, 
very thin at the tip. The perforation is bluntly heart-shaped, with 
the apex outwards; the upper and inner angle sharpest, curving 
round the body more than in the lower one. The neural spine is 
only indicated by a central ridge. 
The fourth is very similar to the third. The transverse process 
is not so sharply bent backwards, but it is slightly wider ; the bony 
ring is broader and thicker. The fifth agrees in general with the 
preceding ; its transverse process is a little longer than in the fourth, 
the lower bone of the ring less curved, broader, and with a wider ex- 
pansion at its inferior angle. The neural arch diminishes in breadth, 
but the spine is more prominent. Dr. Gray’s figure of the fifth 
cervical vertebra of P. antiquorum (P. Z. 8. 1864, p. 217, fig. 11) 
does not quite correspond to the one under description: what he 
gives as that of P. duguidii closely resembles our specimen, except 
that the lateral processes do not form a complete ring. 
In the sixth the body is thicker and flatter ; the abutments of the 
ring of each lateral process do not pass outwards perpendicularly to 
one another, the upper being in advance of the under ; the lower is 
also much thicker. The perforation assumes more the shape of an 
equilateral triangle than in the third, fourth, and fifth. On the right 
side its processes of bone are not completely united, being apart 
from each other for about the extent of an inch; the edges taper 
towards each other in such a manner as to show this to be a natural 
deficiency, and not caused by injury. The neural arch is broad, bi- 
concave behind, and overlapping the next vertebra as in the other 
cervical. 
The seventh cervical, in some respects, makes an approach to the 
first dorsal vertebra. It has a thicker and rounder body than the 
sixth cervical. The lateral process is not developed below, being 
merely indicated by a slight tubercle on the body of the vertebra. 
The single transverse process is directed almost straight outwards 
from the body ; it is thick and strong, broadest and compressed from 
before backwards at the tip. The spine of the neural arch begins 
to be prominent, pointed upwards and a little forwards. 
Comparative Measurements of the Cervical Vertebrae, in inches. 
o . . . ~ ~ at 
.c8F Ss rs > m2 | ms nD a n z ak 
|.ca8o = a=] 2ia 8 2 D2 38 | 
See .(2 |= | 3 |e8/8_ 8158s ./sse.| $a) sss 
BHES|S -1 Se S R/SOSISRES|S RSS) ES (E25 
Noof |SSES|FS23| 2 |deliaelgeee|gecd|-c lane 
vertebra. | 8852/22] $2 3 Palagn|#235|8e2e2\/e2\ee8 
£8°o/ 84) 26 s SSISso SSSHe|AGSEIES| S24 
Seals go a ASSES SeSS|SealliZelsage 
Baa = 2 = 2\/o a2)/F ae & 2o o S5 
Ses |F 16 = Be. gio ate fh |45/4e2 
7 Eye & B\° §) & 5 i 3 
USGietetel eters 24 114|103|/3to4| 44] 3 te : 1 43 
Dede ch sal 42 | 14 23t04/18 110 | 74 | 34 |4 | 5 
Brilpasaans 32 |12 | st! 92 112 ]}10 | 8h | 6 3| 3 
ah asad 59.4114 Be FL 19ch WOlts Sh.) 6 sb ade 
igh 2. 35 | 11 m 11219 | st | 6 | $1 oF 
Ul eige sia 324 |11 | 8 23 |12 9 8i 63 4| 23 
CULE otepaj eet = 30 1l 72| 3 103; 13 oe me Ee eo 
