ABir.ACOlAMFlDUS CASXMW.O®lWCiHUS. Gould.
AULACORAMPHUS CASTANEORHYNCHUS, Gould.
Chestnut-billed Groove-bill.
S p e c i f i c C h a r a c t e r .
Au l. rostro castaneo-rubro; mandibula inferiore in medio, e t culmine nisi ad basin nigro undur
la tis ; v itta basali stramin ea ; uropygio coccineo; corpore subtus v ir id i; pectore cceruleo
tincto ; caudce rectricibus quatuor intermediis a d apicem late castaneis.
Crown of the head and upper surface brownish g re en ; wings dark g re en ; rump crimson ;
four middle tail-feathers deep bluish green, largely tipped with chestnut-brown, the remainder
green ; all the under surface green, stained across the breast with light blue; bill
chestnut-red, becoming paler towards the point, clouded with black on the middle of the
lower mandible and along the culmen, except at the base : at the base of the bill is a band
of straw-white, which increases in breadth as it proceeds downwards.
Total length, 19 inches; bill, 4* ; wing, 5 f ; tail, 7 f j tarsi, If.
Pteroglossus (Aulacorhynchus) castaneorhynchus, Gould in Ann. & Mag. of Nat. Hist., vol. i x .
p. 238.
O f the grass-green Toucans to which the generic term of Aulacorhynchus has been applied, the present
species is by far the largest yet discovered. The accompanying figures were drawn from specimens m my
owu possession, which are somewhat smaller than those in the fine collection formed by the late Earl of
Derby. The Autacorhynclm castaneorhynclm is nearly allied to A. luematopygm, but the diminutive size
of the latter, together with the darker colouring of the apical half of its bill, indicates its specific distinctness.
. , .
The present species appears to be strictly an Andean species, all the specimens I have seen having
been sent to Europe in collections from Santa Fe de Bogota. I regret to add that nothing more is known
respecting it.
The figures are of the natural size.