96 THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 
MEGAPTERA OSPHYIA COPE. (TYPE.) LENGTH OF CENTRA OF VERTEBR®, 
Vert. No. Inches. Vert. No. Inches. Vert. No. Inches. Vert. No. Inches. 
I 4 13 4 25 6 | 37 63 
2 2 14 4} 26 64 | 38 64 
3 13 15 4} 27 6 39 5% 
4 I 16 42 28 6 40 53 
5 1} 17 5 29 64 41 5 
6 13 18 5 3° 64 42 3k 
i 1g 19 5 3t 7 43 3 
8 2 20 5 32 73 44 os 
9 24 2I 5 33 7 45 2y 
Io 27 22 5t 34 73 46 2 
ur 3t 23 53 35 te ay 2h 
12 3t 24 53 36 7 | 48 2} 
The antero-posterior length of a pair of epiphyses, with the dried cartilage 
between, is 13 inches. 
The transverse process of the atlas is 6 in. deep, 44 in. long. In the other 
cervical vertebre from the third to the seventh inclusive, the length of the pro- 
cesses is as follows: 
MEGAPTERA OSPHYIA COPE. (TYPE.) LENGTH OF PROCESSES OF CERVICAL VERTEBR. 
Processes. 
Cervical No. Superior. Inferior. 
Right. Left. Right. Left. 
In. Tn. In, In. 
3 (broken) (broken) 52 6 
4 7 74 4 4t 
5 74 72 5 43 
6 84 8 3t 
7 8 i (none) (none) 
The lateral processes of the axis are long, but do not meet at the distal ends. 
The inferior processes are as long as those of the third cervical. The vertical 
diameter of the fifth cervical is 84 in. 
The height of the neural arch and spine of the first dorsal vertebra is 84 in. ; 
of the seventh dorsal, 13 in. The depth of the centrum in the latter vertebra is 83 in. 
The height of the neural arch and spine of the first ten lumbars, measured from 
the top of the centra posteriorly, is as follows: 
MEGAPTERA OSPHYIA COPE. (TYPE.) HEIGHT OF NEURAL ARCH AND SPINE OF LUMBAR VERTEBR2. 
Lumbar No. Inches. Lumbar No. 
mp wWN 
HoH 
on 
ou oN aD 
