362 ON THE XnACHEA 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 Nuinida proper (^N. meleagris, ptilorhijncha, and mitrafa 

 have been examined), as well as in Acryllium vullurinum, the trachea 

 is quite simple in both sexes.] 



D. The trachea has several intrathoracic convolutions. 

 Fam. CicoNiiDiE. 

 Tantalus ibis, in the male {cf. Garrod, Coll. Papers, p. 286). 

 [The condition of the female is unknown.] 



[In both sexes of T. locidator, as well as in the females of 

 T. leucocephalus (the other sex not yet having been dissected) the 

 trachea is unconvoluted.] 



Fam. Ibidid^. 



Platalea leucorrodia. S • ( 2 , Nitzsch). 



[In Jjaja rosea the trachea is known to be simple in both sexes, 

 though the bronchi are peculiarly long. Cf. Garrod, I.e. p. 288.] 



E. The trachea is convoluted, the convolution impinging on, or 

 entering, the carina sterni. 



Fam. Cygnid^. 



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. buccinator, 

 C. americamis (according to Macgillivray, Sharpless, &c.), and 

 C. bewicJii (Yarrell). 



[In Cygnus olor, C. immutahilis (Macgillivray), C. nigricoUis, 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. Gruid^. 



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. d' , $ . (Yarrell, &c.) 



antigone. S (Tegetnieier). $. 



americana. $ {cf. Roberts, Am. Nat. 1880). 



• carunculata. c? , $ . 



leucogeranos. c? , $ • 



As regards these two species, it appears from Prof. Garrod's MS. 



