e Zoological Society's Gardens.

The hoofed animals are twenty-two in number, of which about seven extend
into Burmahand India. All the deer are of peculiar species, except two,
which range from Malacca into India. Of the cattle, one Indian species
reaches Malacca, while the Bos sondiacus of Java and Borneo is also
found in Siam and Burma. A goat-like animal is found in Sumatra which
has its representative in India; while the two-horned rhinoceros of
Sumatra and the single-horned species of Java, long supposed to be
peculiar to these islands, are now both ascertained to exist in Burma,
Pegu, and Moulmein. The elephant of Sumatra, Borneo, and Malacca is now
considered to be identical with that of Ceylon and India.

In all other groups of Mammalia the same general phenomena recur. A
few species are identical with those of India. A much larger number are
closely allied or representative forms, while there are always a small
number of peculiar genera, consisting of animals unlike those found in
any other part of the world. There are about fifty bats, of which less
than one-fourth are Indian species; thirty-four Rodents (squirrels,
rats, &c.), of which six or eight only are Indian; and ten Insectivora,
with one exception peculiar to the Malay region. The squirrels are
very abundant and characteristic, only two species out of twenty-five
extending into Siam and Burma. The Tupaias are curious insect-eaters,
which closely resemble squirrels, and are almost confined to the Malay
islands, as are the small feather-tailed Ptilocerus lowii of Borneo, and
the curious long-snouted and naked-tailed Gymnurus rafllesii.

As the Malay peninsula is a part of the continent of Asia, the question
of the former union of the islands to the mainland will be best
elucidated by studying the species which are found in the former
district, and also in some of the islands. Now, if we entirely leave
out of consideration the bats, which have the power of flight, there are
still forty-eight species of mammals common to the Malay peninsula
and the three large islands. Among these are seven Quadrumana (apes,
monkeys, and lemurs), animals who pass their whole existence in forests,
who never swim, and who would be quite unable to traverse a single
mile of sea; nineteen Carnivora, some of which no doubt might cross by
swimming, but we cannot suppose so large a number to have passed in this
way across a strait which, except at one point, is from thirty to fi