282 E. T, NEWTON ON ANTELOPE REMAINS IN 
During the time that I have been working at this Norwich- Crag 
Antelope, two other examples from the same horizon have come 
under my notice, so that the occurrence of the Antelope in these beds 
does not rest upon one specimen. The second example is in the 
Geological Department of the British Museum at South Kensington. 
It is labelled as belonging to the Wigham collection, and from the 
Norwich Crag of Norfolk (No. 33516). This also is a horn-core and 
frontal, somewhat smaller than Mr. Woodward’s specimen, with rather 
more of the horn-core preserved. The two have a somewhat different 
appearance, both being imperfect ; but they agree in all their principal 
characters, such as the position and form of the frontal fossa and its 
foramen, the position of the pit at the back of the pedicles, and also 
in the arrangement of the brain-conyolutions. 
The third example was among a number of bones from the Thorpe 
Crag Pit, which Dr. Arthur ne. of Aspley Guise, Woburn, presented 
to the Museum of Practical Geology. This specimen, like the other 
two, consists of a horn-core and frontal; it repeats so closely the 
characters of the two already noticed that I have no doubt as to all 
three belonging to the same species. Dr. King’s specimen (Pl. XLV. 
fig. 6) is somewhat smaller than that found by Mr. Woodward, and 
is more mutilated ; but the portion of horn-core preserved is little 
abraded and indicates only a slight tapering, thus confirming the 
opinion above expressed, namely, that the more rapid tapering of 
Mr. Woodward’s specimen is largely due to abrasion. 
There is one other specimen which should be noticed, as it may 
possibly belong to this Pliocene Antelope; it is the distal half of a 
left tibia, preserved in the British Museum and labelled ‘‘ Wigham 
Collection, Norwich Crag, Norwich.” The proportions and structural 
details of this bone correspond with those of the tibie of some of 
the smaller Antelopes. As no other form is known from these de- 
posits to which this tibia is likely to have belonged, it is better for 
the present to include it under the same species as the horn-cores 
already described. 
A comparison of this Pliocene Antelope with the Antelope skulls 
in the British Museum and Royal College of Surgeons shows that, 
both in size and conformation, it agrees most closely with the 
Gazelles. Several of the nearly allied genera agree with the fossil 
in possessing a deep frontal fossa, from which the supra-orbital fora- 
men passes directly into the orbit; but with none is the agreement 
so close as it is with the Gazelles. The three forms which seem 
most nearly to resemble the fossil are Gazella dorcas, G. subgut-. 
turosa, and G. Bennettti. Gazella dorcas, from Abyssinia, has the 
frontal fossa and its foramen, as well as the form of the horn-cores 
and pedicles, much as in the fossil ; but the pit at the back of the 
pedicle is neither so deep nor so far forward as it is in the fossil. 
The brain of this species, as shown by a specimen in the Museum 
of the Royal College of Surgeons, labelled Gazella dorcas, Kgypt (No. 
1327. o, 6.), has the frontal convolutions more complex than they 
are seen to be in the cast of the fossil. The brain of Gazella sub- 
gutturosa, from Persia, in the same Museum (No. 1327. ¢, ¢.), has 
