1864. ] STRANDED ON THE NORFOLK COAST. 257 
rally not articulating with, the bodies of the vertebree. The first rib 
is the shortest, and widens at the sternal end, where it terminates 
obliquely, the outer edge being produced downwards, and the inner 
edge forming a projection inwards. All the others are narrow at their 
inferior termination. The vertebral end of the first is very flat, and 
the angle not very distinct. The second differs from all the others 
in having a prominent, broad, flattened, slightly curved-backwards, 
and rough-edged process at the angle, which is situated close to the 
articular end. This process gradually subsides and recedes from the 
extremity of the base in the succeeding ribs. The length of the are 
of the first rib is 253", of the second 343", of the third 392", of the 
fourth and fifth 40"; after this they slowly and gradually diminish 
to the eleventh, which is 35" long. 
The chevron bones are nine in number. The first is attached to 
the hinder part of the thirty-first vertebra; this is very small, and 
pointed posteriorly. The second is much larger and of very different 
shape, having a long narrow spine ; the third is the largest, being as 
long as the last, and much broader ; the succeeding ones rapidly di- 
minish in size. 
The characters of the skull agree with those of the specimens 
figured in the ‘ Voyage of the Erebus and Terror’ and in Eschricht’s 
work. Its principal dimensions are as follows :— 
Entire length of cranium, from tip of premaxillaries to occi- 
BAUER CONAVICS. < Bei teraabe ty Sstoacieh Sd. «eign mapeees by 65 
Length from tip of premaxillaries to anterior end of maxillaries 3 
Length from tip of premaxillaries to anterior end of vomer .. 114 
Length from tip of premaxillaries to anterior end of nasals.... 41 
Pine. Gt maxillary WONG Leics 25s. sacs .ce es wise aoa w whee GRY 464 
Greatest breadth of cranium (at squamosals behind the orbit). 35 
Breadth at antorbital processes of maxillary .............. 31 
Breadth of rostrum, 36 inches from tip ............-..... 20 
Length of ramus of lower jaw (in straight line) ............ 62 
A superficial portion of the inner side of the left ramus, near the 
coronoid process, has suffered necrosis, and the adjoining bone bears 
evidence of recent and extensive inflammatory action. 
The sternum has the cross-like form characteristic of the species, 
the posterior being more than double the length of the anterior limb ; 
its greatest length is 143", its breadth 10". The scapula is 26” in 
breadth, and 15" in length. The humerus 102", and the radius 16! 
long. Although the upper ends of the radius. and ulna show no 
trace of epiphysis, and present a smooth surface for articulation 
with the humerus, the rough condition of the distal extremities 
indicate that they terminated in cartilage; and close to them were 
lying two small, transversely elongated, detached bones or epiphyses, 
though not large enough to cover more than half of the surfaces in 
contact with which they were placed. The ossifications in the carpus 
were five in number, three in the first and two in the second row. 
The metacarpals were four ; the phalanges too imperfect to afford any 
definite information. 
Proc. Zoou. Soc.—1864, No. XVII. 
