1864.] IN THE MUSEUMS OF HOLLAND AND BELGIUM. 415 
vertebra has the end of the transverse process thickened and showing 
traces of an articular surface, it is most probable, as Van Beneden 
supposes, that the fifteenth pair has been lost, and therefore that the 
skeleton, if complete, would present no exception to the normal 
number. ‘The first rib is simple, 51" in extreme length, and 132" in 
breadth at its lower end. The second and third have capitular pro- 
cesses which reach nearly to the bodies of the vertebre ; that of 
the second is rather the longest. There are corresponding rough 
tuberosities on the sides of the bodies of the first and second dorsal 
vertebree. The neck becomes rudimentary in the fourth, and obso- 
lete in the fifth and all succeeding ribs. 
The sternum is trifoliate, differing from the one figured at p. 393 
chiefly in having the posterior process shorter, broader at the base, 
and more tapering to the point. Its extreme length is 19", and breadth 
24". The hyoid bas the usual shape; its extreme breadth is 38", 
and length 14", The stylo-hyals are 19'in length, and 53" in great- 
est breadth. 
One pelvic bone is present, suspended on the left side; the other 
is modelled in wood. It is 15” long and 3" in greatest breadth, 
simple, straight, much compressed, slightly twisted on itself, broader 
generally at one end than the other, but pointed at both extremities. 
One edge is smooth aud rounded, but furrowed by a deep linear 
groove ; the other is irregularly tuberculated and spiculated. This 
form is quite different from that of the pelvic bones of the specimen 
in the Alexandra Park, where they are each 1&3" long, gently curved, 
flattened, quite smooth along the edges, and with a prominent angular 
projection from near the middle of the convex border. 
The scapula is 31! in height and 51" in breadth ; the acromium 
is 12" long; the coracoid 53". The humerus 19" long, 9! in greatest 
diameter, and 263" in girth at the middle. The radius is 32! long, 
73" in breadth at the upper and 9" at the lower end. The ulna 
36" in extreme length, from the end of the olecranon, 30! from the 
middle of its surface for articulating with the humerus, 10" in breadth 
above and 63" below. There are six ossifications in each carpus. 
The phalanges appear complete: their number and the lengths of 
the metacarpals are given at p. 413. It should be stated that the 
latter are not very exact, as the ends of the bones are more or less 
concealed by the composition which replaces the cartilage. The 
baleen is present in both sides. The largest plates measure about 
28" in length. 
The recent discovery of a large number of fossil remains of Ceta- 
ceans in the excavations occasioned by the fortification of the city of 
Antwerp has given a great impulse to the study of the osteology of 
the existing members of the order in Belgium; and, chiefly by the 
exertions of Professor Van Beneden of Louvain, a very fine collection 
has been brought together, in great part obtained from the Northern 
seas, through the co-operation of the late Professor Eschricht of 
Copenhagen. Many of the specimens enrich the admirable anato- 
mical collection of the University of Louvain ; but most of the larger 
ones have passed from the hands of M. Van Beneden to the Royal 
