74 
PROFESSOR OWEN ON THE REMAINS OF A LARGE EXTINCT LAMA 
Table of Dimensions of the Cervical Vertebrse in Palauchenia, Auchenia , and Camelus. 
Palauchenia. 
Auchenia *. 
Camelus f. 
Second Cervical Vertebra. 
in. 
lines. 
in. 
lines. 
in. 
lines. 
Length 
8 
lot 
5 
3 
9 
6 
Length of centrum 
7 
6 
4 
3 
7 
6 
Vertical diameter at highest part of neural spine 
3 
7 
2 
0 
4 
8 
Transverse diameter of hind end of centrum 
2 
5 
1 
2 
2 
5 
Third Cervical Vertebra. 
Length of centrum 
7 
3 
4 
6 
6 
9 
Breadth of hind end of centrum 
2 
6 
1 
3 
2 
7 
Breadth across diapophyses § 
4 
8§ 
3 
0 
5 
3 
Fourth Cervical Vertebra. 
Length 
8 
9 II 
5 
4H 
7 
9 
Length of centrum 
6 
9 
4 
3 
6 
7 
Breadth of hind end of centrum 
2 
9 
1 
H 
2 
9H 
Fifth Cervical Vertebra. 
Length 
9 
6 II 
5 
on 
7 
10 f 
Length of centrum 
6 
10 
4 
0 
6 
6 
Breadth of hind end of centrum 
3 
0 
1 
6 
3 
3 
Breadth across diapophyses 
6 
6 
3 
H 
5 
3 
Sixth Cervical Vertebra. 
Length 
9 
3 II 
4 
5H 
6 
10f 
Length of centrum 
5 
9 
3 
6 
5 
6 
Length of hind end of centrum 
3 
4 
1 
7 
3 
0 
Breadth across diapophyses 
7 
3 
3 
H 
5 
0 
Seventh Cervical Vertebra. 
Length of centrum 
4 
4 
2 
10 
5 
0 
Breadth of hind end of centrum 
4 
0 
2 
l 
3 
9 
Breadth across diapophyses § 
7 
0 
3 
7 
6 
3 
Professor Leidy, as was remarked in the preliminary historical sketch of the discovery 
of fossil Camelines in America, has recorded interesting indications of the extension of 
the former range of this family of ftuminants northward of Central America. 
The first of these indications to which I shall refer relates to the extinct form called 
“ Procamelus.” 
The species on which the genus is founded is described as follows : — 
Procamelus occidentalism Leidy. — “This genus and species are founded on several 
fragments of jaws, with teeth, of several individuals of an animal allied to the Camel, and 
about two-thirds its size. The posterior fragment of a lower jaw presents the same 
general form as in the corresponding part of the Camel, but is broader at the ramus in 
relation with its height than in the latter. The posterior coronoid process is well de- 
* Full-sized old Auchenia lama. f Full-grown large var. of Camelus dromedarius. 
£ Including the odontoid process, which is restored according to the proportions of that in Auchenia. 
§ These are the only admeasurements which the state of the fossil vertebrae enables me to take for the pur- 
pose of comparison. 
|| From the fore end of the pleurapophysis to the hind end of the postzygapophysis. 
if From the end of the prozygapophysis to that of the postzygapophysis, the pleurapophyses not extending, 
as in Palauchenia, in advance of the prozygapophyses. 
