1875.] MR. GARROD ON THE TRACHEA OF CERTAIN DUCKS. 151 
This species was also procured by Lieut. Liardet in the mountains 
of Taviuni. Native name di-sou. 
5. CHRYSG@NA VIRIDIS, Sp. DOV. 
Male. General colour darkish green; head soiled golden yellow 
without gloss; under tail-coverts bright chrome-yellow ; thighs, 
lower part of belly, and vent French grey ; the green of the back and 
sides of the chest glossed with gold; these feathers have the V-shaped 
termination as in Péilinopus ; and the first primary shows a tendency 
to narrowing as in that genus. Primaries edged with yellow, secon- 
daries brilliant green; the inner webs of both golden yellow, as is 
the underside of the flexure and the inside of the wing ; underparts 
less brilliant than the upper, except on the chest, where there is a 
beautiful green sheen in certain lights; bill blue-black, tip pale livid; 
legs very dark crimson; iris yellowish. Length 7!; wing 4" 6!; 
tail 2" 3!; tarsi 10!; bill 10!" 
Female. Less brilliantly coloured, especially about the head. 
I obtained this lovely species at Kandavu on the 8th of August, 
evidently breeding, the testes ot the males being enormously de- 
veloped. It fed on the berries of a species of banian, and appeared 
to be not very uncommon. One of the naturalists of the ‘ Chal- 
lenger,’ Dr. von Suhm, obtained several specimens, but wrongly iden- 
tified it as C. luteovirens, which he did not procure. I agreed with 
him at the time, till I obtained specimens for myself, and, finding it 
in the full breeding-stage, came to the conclusion that my first im- 
pression of it being C. duteovirens not in breeding dress must be 
erroneous, The acquisition of C. luteovirens in all stages showed 
me, beyond a doubt, that it is distinct ; I therefore describe it as an 
addition to the genus Chrysena. 
I have been puzzled by the natives identifying the female of this and 
of C. luteovirens with C. victor of Gould; but I think I may now 
affirm, from both native and European testimony, that the female and 
young male of that species are green, as are those of C. luteovirens. 
C. victor is more widely distributed than I at first thought; it has 
been obtained at Lanthala, Bua, Ngamea, and Taviuni. The natives 
call it “Bulindamu;” at Kandavu they called C. viridis *Sokulu;”’ on 
Ovalau they designate C. luteovirens by the name of “ Buniaco.’’ 
The Carpophagus and Columba vitiensis they call ‘ Ribé’’ (Rubey), 
and Phlegenas stairi “ Ngilu’’*. 
7. On the Form of the Lower Larynx in certain Species of 
Ducks. By A. H. Garrop, F.Z.8. 
[Received March 2, 1875.] 
The present communication contains descriptions of the condition 
of the lower larynx in some rare members of the dnatide, which are 
not referred to in the works of either Mr. Eyton or Mr. Yarrell, 
* Italian vowels. 
