colouring and sliapo of tho bare skin on tto W and neck are quite different from those of any otlier
species known to me. Tlie type at Kotterdam is the only example yet brongM to Europe, so far as I
am aware, unless my supposition should proye corroet that the guiMKnm of Boeage (nee SoUegel) is
the same species. With the slight knowledge yet possessed of the present speeics, it is impossible
to give more than an approximate idea of its habitat. It probably, however, ranges npon the
west coast of Africa, between the habitat of B. ahjmnicm on the north and that of B. cafer on
the south; but how far it may extend into the interior of the continent I have not at present any
means of ascci-taining. The type, although it has not been very long in eaptmty, is very gentle,
and is greatly pleased when taken into any person's arms and its head is rubbed. Within the
gular pouch, at its lower extremity, a hard ronnd substance can be felt, which is capable ot
being moved upwards as far as the red skin extends.
Ad,m.Sil\ black, with an orange-eoloured plate on the side of the maxilla neai- the base,
as in B. aiymnicm. Casque, rising torn base ot maxffla, extends backwards over the eye, and
then inclines forwards (nearly straight on top), terminating in a wide openmg in front, simdar to
that in B. ahj>mmm, bnt smaUer. Space around the eye, and extending backwards nearly to
the occiput, bare of feathers, which, together with that beneath the feathers on the forehead, is
orange-red Bare skin on the sides of the neck and throat dark blue. Gular sac orange-yellovv
in front oran.e-red behind, this latter colom- running up for a short distance on the posterior side
of the blue skin of the neek. Entire plumage of body lustrous black; primaries pure white;
irides pearly white.
Length of bill from the angle of the mouth 6f inches, height of casque j
without casque IJ, tafl 11|, tarsus
J f , height of bill