ON THE GENERA. 
xxni 
longation of the shafts of the breast-feathers: as this is a point which couhl not \\<-\\ ],<■ 
overlooked, and which appears to warrant a hif,dier than a specific sepjiratifjii, we have 
retained the genus. The bill is black, the culmen rounded and inflated at the l^ase, and 
arched slightly towards the tip; the upper mandible is furnished with one well-defined and 
one rudimentary tooth, the rictal bristles are black, coarse, and long. Wings modf;r;i,t(; in 
length, fourth and fifth quills longest; tail rather short; legs and feet similar to those of 
Pogonorhynclius. 
There is only one species known of this genus, which comes from the west coast of Africa. 
Verreaux made two species ; but his T. flavipunctata is clearly only the immature Ijird of 
T. hirsuta. They are found in pairs in the great forest of Gaboon, and feed on insects, 
which they find in the crevices of bark. They build in holes of trees. 
A". Pectore setis nigris ornato. 
a. Supra nigra fiavipunctata T. hirsuta. 
2. Genus Pogonorhynchus. 
Characteristics. — Bill as long as or a little longer than the head, culmen rounded and 
arched, and deeply grooved in two species ; upper mandible furnished with one or two power- 
ful teeth, inflated at the base, and slightly compressed towards the tip; nostrils rounded 
and basal ; rictal bristles numerous, coarse, and black (except in P. leiicoce])]ialus, which are 
white) ; plumage soft and loose ; wing moderate in length, third, fourth, and fifth quills 
subequal and longest; tail medium length, being about one-third shorter than the wing, 
and consisting of ten feathers ; legs somewhat longer than in the MegalcemincB ; the feet are 
powerful, the exterior toes being much longer than the interior ones. 
We propose, for the sake of simplifying identification, to divide them into two subgenera. 
The first includes the larger species, with yellow bills, more powerful teeth, and coarser 
bristles. Three of them (P. duhius, P. rolleti, and P. hidentatus) are much alike, having 
the upper plumage black and the underparts red and black, with white flanks and rump ; 
the fourth species (P. melanopterus) differs in colouring ; but the above-mentioned charac- 
teristics will serve to distinguish it. The second contains all the remaining species ; they 
are smaller birds, with black bills, and the second tooth is rudimentary or wanting ; the 
bristles are also less developed. 
Their food consists of wild fruits, berries, and insects and their larvae. It is difficult to 
say what use the teeth are put to. Mr. Monteiro suggests that they may be for stripping 
ofi" bark, as he found the stomachs of some full of green bark. They nestle in holes of trees ; 
their eggs are white. They have a loud, ringing, but monotonous note, which is generally 
repeated quickly several times, while they bow the head from side to side. They are 
usually found in the depth of the forests among the higher branches of the trees; but 
Mr. Ussher, the Governor of Fantee, mentions finding them in low thorn bushes (they most 
probably had descended in search of food). The young appear to remain with their parents 
until old enough to pair. 
