220 
Oisr THE GEOG-EAPHICAL 
form and colour, differs, however, in several points of 
structure. The Snakes of Japan, besides the Hydrophis, 
may be reduced to three species of the genus Coluber, 
two of Tropidonotiis, and one Trigonocephalus. The pre- 
sence of this last, as also that of a Trionyx, of the Musk 
Shrew, and of the Great Flying Squirrel, recall the Indian 
Fauna; while several others, as the five-rayed Scink, se- 
veral Salamanders, &c., demonstrate that there also exist 
relations between the Fauna of North America and that 
of Japan. An examination of the productions of the two 
peninsulse of India, comprehending the Island of Ceylon, 
shews us, that a great analogy exists between those coun- 
tries and the isles of the Great Indian Archipelago ; and 
this analogy becomes much more striking, when we compare 
the animals of the nearest points of the countries we have 
mentioned ; as, for instance, those of the peninsula of 
Malacca to those of Sumatra. This analogy, however, 
is not so evident in respect to mammifera^ as to birds, 
to reptiles, to fishes, and especially to the productions of 
the vegetable kingdom ; and there exist in the peninsula 
on this side the Ganges, several reptiles peculiar to that 
region, and even pertaining to genera which are not 
found in Malayan Asia ; as, for example, Cameleons, 
Vipers, &c. The Isle of Ceylon, although very near the 
coast of Coromandel, supports several animals t which do 
not inhabit the latter country : among serpents there are 
the Tortrix maculata, the Calamaria scytale, the Lycodon 
carinatus, and two Trigonocephali, the T. hypnale, and 
T. nigromaculatus. It is in those latitudes that we first 
detect the genus Hydrophis ; interesting ophidians that 
inhabit exclusively the sea, and occur, from this point, in 
all intertropical latitudes east of Malabar, even to Poly- 
nesia. The number of serpents which are found in the 
two peninsulae of, the Ganges, without occurring in 
Malayan Asia, appears to be very limited : such are the 
^ The Monkeys of Malayasia, for example, belong, without exception 
almost, to species different from those of Bengal, of the Indian Penin- 
sula, or of Ceylon. 
t The Fjion- Tailed Monkey, or Ouanderou, and several Seninopi- 
theci. 
