triangular feather, and having very much the effect of a
row of the wing coverts of the Mexican trogon laid upon
black velvet. The only other marks are a broad neck-
collar of vivid crimson, and a few delicate white touches on
the outer margins of the hind wings. This species, which
was then quite new and which I named after Sir James
Brooke, was very rare. It was seen occasionally flying
swiftly in the clearings, and now and then settling for an
instant at puddles and muddy places, so that I only succeeded
in capturing two or three specimens. In some
other parts of the country I was assured it was abundant,
and a good many specimens have been sent to England ;
but as yet all have been males, and we are quite unable
to conjecture what the female may be like, owing to the
extreme isolation of the species, and its want of close
affinity to any other known insect.
One of the most curious and interesting reptiles which
I met with in Borneo was a large tree-frog, which was
brought me by one of the Chinese workmen. He assured
me that he had seen it come down, in a slanting direction,
from a high tree, as if it flew. On examining it, I found
the toes very long and fully wTebbed to their very extremity,
so that when expanded they offered a surface much larger
than the body. The fore legs were also bordered by a
membrane, and the body was capable of considerable
inflation. The back and limbs were of a very deep shining