ts range is certainly
wider than this. It is a species perfectly distinct from _Apaloderma
narina_, but both occur in the same forests, though the latter was
also to be heard at times in areas of tall second-growth, whereas _A.
minus_ seemed never to leave the primitive uncut forest, and was
extremely shy and difficult to observe. These two trogons may easily
be recognized by their voices, the common note of _A. narina_ being a
double, dove-like "cu-coo," which is repeated slowly for several
seconds, starting faintly but increasing in strength, and accompanied
by a slight wagging of the tail. That of _A. minus_ is a series of
longer, more mournful sounds that might be represented by the word
"kwaw." These calls are given by the males.

As compared with the measurements given in Prof. Reichenow's "Voegel
Afrikas" and the British Museum Catalogue, our specimens of
_Apaloderma narina_ from the Ituri District seem rather small, and may
belong to the race _aequatoriale_ of Dr. Sharpe.

A series of 12 adult males measures: bill (culmen from base) 18.5-21
mm.; wing 117.5-128; tail 146.5-166. The green borders of the
secondaries are never very well marked, and sometimes virtually absent.

Seven females from the same region measure: Bill, 18.5-21; Wing
117.5-129; Tail, 149-169.

One male collected in the Uele District, in a small forest tract
between Faradje and Aba, is strikingly larger; wing, 134; tail 194.
This example is probably referable to _A. n. narina_.

=Ceriocleptes= gen. nov. (Indicatoridae).

Resembling _Indicator_ in its bill and general form, save for the
tail, which is composed of 12 quills, the two middle pairs of
nearly equal length, somewhat pointed and curved strongly
outwards, the next pair considerably shorter, but also pointed
and slightly curved; while the fourth, fifth and sixth are
straight, greatly narrowed, and stiffened, becoming successively
shorter, so that the outermost pair is not half so long as the
median. The tail-coverts are unusually long, those below as long
as the longest rectrices, and projecting in the fork of the tail.

=Ceriocleptes xenurus= sp. nov.

Description of type, collector's No. 5628, Congo Exp. A. M. N. H.
[Male] ad., Avakubi, Ituri District, Belgian Congo. Apr. 17,
1914.

Feathers of forehead, crown, back, and rump blackish-brown,
bordered or washed with yellowish-citrine, those of nape and