348 MR. W. A. FORBES ON THE TRACHEA OF [Apr. 4, 
‘Challenger,’ and kindly intrusted to me by the late Sir Wyville 
Thomson. The first three are those already mentioned by Mr. 
Tegetmeier in his appendix to the ‘Natural History of the Cranes’ ’. 
All are convoluted, though that of the female specimen is least so, 
and those of the two males vary slightly in the amount of convo- 
lution. They very closely resemble that of P. keraudreni figured 
on p. 68, fig. 2, in the second of Prof. Pavesi’s papers already 
quoted, but have eight instead of nine folds, counting along a trans- 
verse line drawn through the centre of the coil. Of the three ‘ Chal- 
lenger’ birds, one, a female’, has a trachea with a single curved 
loop, like Pavesi’s fig. 8, whilst in the two others the trachea is 
Trachea of Manucodia atra. 
quite straight, with no trace of a curve. One of these is a male, 
probably young, whilst the other is an adulé female, as shown by 
the oviduct containing an egg nearly ready to be laid. 
It is clear therefore that in this species, too, the female may 
sometimes have no tracheal loop at all. 
As regards the habits of P. gouldi, I reproduce here some extracts 
from the notes accompanying the receipt of the first three trachez 
sent—I believe, by Dr. George Bennett of Sydney—the substance of 
which Mr. Tegetmeier has already published (from the original MS. 
in my possession) in his work on Cranes :— 
? London, 1881, pp. 87, 88. 
2 One of the specimens referred to in Mr. Murray’s notes, ¢f. ‘ Voyage of 
H.M.S. Challenger,’ Report on the Birds, p. 87. 
