352 ON THE TRACHEA OF MANUCODIA ATRA ETC.  [Apr. 4 
of Guttera cristata and G. pucherani. ‘The same conformation 
occurs in G. eduardi; but the sex of my specimen is not, unfortu- 
nately, recorded. 
[In Numida proper (NV. meleagris, ptilorhyncha, and mitrata 
have been examined), as well as in Acryllium valluriatize, the trachea 
is quite simple in both sexes. | 
D. The trachea has several inérathoracie convolutions. 
Fam. Ciconup&. 
Tantalus ibis, in the male (cf. Garrod, Coll. Papers, p. 286). 
[The condition of the female is unknown. | 
[In both sexes of 7. loculator, as well as in the females of 
T. leucocephalus (the other sex not yet having been dissected) the 
trachea is unconvoluted. | 
Fam. Isrpip. 
Platalea leucorrodia. 3. (2, Nitzsch). 
[In Ajaja rosea the trachea is known to be simple in both sexes, 
though the bronchi are peculiarly long. Cf. Garrod, l.c. p. 288.] 
E. The trachea is convoluted, the convolution impinging on, or 
entering, the carina sterni. 
Fam. Cyqnip&. 
In the Swans of the Cygnus ferus group, the trachea, as has long 
been known, has a number of intrasternal convolutions, which may 
extend to near the end of the bone. 
This is well known to occur in both sexes of Cygnus ferus: it 
is likewise the case in both males and females of C. duccinator, 
C. americanus (according to Macgillivray, Sharpless, &c.), and 
C. bewicki (Yarrell). 
[In Cygnus olor, C. immutabilis (Macgillivray), C. nigricollis, and 
C. coscoroba the trachea is quite simple in both sexes. | 
According to Yarrell, in Cygnus atratus there is a slight down- 
wardly-directed loop of the trachea in the interclavicular region. 
Fam. GRuip&. 
The genus Grus, as a rule in both sexes, possesses a convoluted 
trachea, which usually enters the carina sterni, which it may 
excavate to its posterior extremity. The amount: of convolution 
varies much in different specimens of the same species. 
Species examined, 
Grus cinerea. 3,2. (Yarrell, &e.) 
—— antigone. 3 (Tegetmeier). @. 
—— americana. @ (cf. Roberts, Am. Nat. 1880). 
carunculata. 3, Qe 
—— leucogeranos. 3,9. 
As regards these two species, it appears from Prof. Garrod’s MS. 
