CONSI'KCTUS AVIUM OA IMTONIDA RUM. 
xxxin 
dark earthy brown. The wings are of mo(l(>rate Icsngtli, tlu; tliird, fouiili, flflli and sixth 
quills being subcqual and longest; tail medium huigth and rounded at the sides; tarsus 
short ; feet as in the other genera. 
There are only two species belonging to this strange genus, which differs greatly in [jer- 
sonal appearance from any other of the family, and, as Mr. BJyth justly remarks, closely 
resembles the smaller members of the RamjphastidcB group. 
They are small dingy birds. The bill when seen in profile looks huge in comparison with 
the size - of the bird ; but when seen from above, it is not broader than that of a Sylma. 
Some authors consider that the difference is only sexual, and that both come from Sumatra 
(as is the opinion of Mons. Jules Verreaux). Mr. A. R. Wallace, the latest scientific orni- 
thologist who has visited Borneo and Sumatra, and obtained both species, has no hesitation 
in saying, from his own experience, that the red-breasted bird is Bornean, and the yellow- 
breasted Sumatran. This evidence is sufficient to warrant a separation. 
B". Culmine acuto compresso. 
a. Pectore rubro C. fuliginosus. 
* b. Pectore flavescente C. lathami. 
4. Genus Stactol^ma. 
Characteristics. — Eictal bristles almost entirely wanting; bill a little shorter than the 
head, culmen acute, but inflated, and sloping towards the tip, which slightly overhangs the 
lower mandible ; the gonys ascends somewhat towards the tip ; the nostrils are basal and 
rounded ; the wings and tail moderate in length ; legs and feet as in other genera. General 
plumage rufescent brown, with a yellow head and throat. We proposed this genus for a 
species sent from Africa by Anchieta, which we could not identify with any known genus. 
Nothing is known of its habits. 
C". Culmine acuto inflato. 
a. Brunneo-rufescenSj capita guttureque sulphureis . . . . S. anchieta. 
CONSPECTUS AVIUM CAPITONIDARUM. 
A. Eostro dentato Pogonorhynchirue. 
A'. Mandibulae apice bifurcato Tetragonops. 
a. Gutture cineraceo T. ramphastinm. 
b. Gutture olivaceo T. frantzii. 
B'. Maxilla dentata. 
A". Pectore setis nigris ornato Tricholama. 
a. Supra nigra flavipunctata T. hirsuta. 
B". Pectore setis hand ornato Pogonorhynchus. 
a. Majoresj rostro flavicante, valde dentato. 
a'. Gutture coccineo ; pectore nigro P- dubius. 
b'. Gutture pectoreque nigris P- rolletti. 
e 
