ON THE TRACHE® OF TANTALUS AND VANELLUS. 447 
and Ailuroidea ; but from the same facts Mr. H. M. Turner* placed 
the three major groups in the same order of sequence that the brain- 
markings indicate, namely Urside, Felide, and Canide, which makes 
it evident that such an arrangement is not opposed to the teachings of 
the parts other than the cerebral hemispheres. 
74. ON THE TRACHEA OF TANTALUS LOCULATOR 
AND OF VANELLUS CA YENNENSIS+4 
Ty his “ Beitrige zur Naturgeschichte von Brasilien,” Maximilian, Page 625. 
Prince of Wied,{ describes briefly and figures the lower end of the 
trachea of Tantalus loculator. A male specimen of the species 
having recently died in the Society’s Gardens, I take the opportunity 
of more minutely pointing out its peculiarities and of comparing it 
with T. ibis, the windpipe of which, with its elaborate convolutions, I 
have had the opportunity of bringing before the notice of the Society 
upon a previous occasion. § 
In Tantalus loculator the trachea is not elongated as it is in T. zbis ; 
nevertheless it is peculiarly modified, and differs in detail from that of 
3 any bird with which I am acquainted, although its plan of construction 
is perfectly Ciconiine. 
The seventy-cight lowermost rings of the trachea are those which 
are modified, the rings above them being quite typical, of average 
depth, notched in front as well as behind, and overlapped to produce 
the well-known zigzag markings on the surface. 
With the exception of the last one, all the modified rings are much 
reduced in depth; and of them the sixty-one upper rings are com- 
pressed from side to side and bent sharply in front, whilst the lower 
seventeen are somewhat flattened from before backwards and sharply 
bent laterally, the general effect of which is to produce a lateral flat- 
tening and an anterior carination of the whole tube opposite the fifty- 
one rings, as well as an antero-posterior flattening with a lateral 
carination in the part below. The change from the superior unmodi- 
fied tube to the laterally compressed portion is somewhat abrupt, as is 
* “Proceedings of the Zoological Society,” 1848, p. 83. 
+ ‘‘ Proceedings of the Zoological Society,” 1878, pp. 625-9. Read, May 21, 
1878. 
t Band iv. p. 687, tab. 1. figs. 7 and 8. 
§ “ Proceedings of the Zoological Society,” 1875, p. 298. (Supra, p. 286.) 
