342 ON THE TRACHEA OF 



Fam. SCOLOPACED^I. 



The females only of Ehynchcea australis [according to Gould] have a 

 convoluted trachea, forming several folds on the pectoral muscles, and 

 extending onto the abdomen. In the males it is simple *. 



In R. capensis, as Mr. "Wood-Mason has lately shown (P. Z. S. 1878, 

 pp. 745-751, pi. xlvii.), the mature females only have a slightly extra- 

 thoracic loop, the trachea of the younger females and of the males being 

 quite simple. 



P.Z. S. 1882, Fam. CRACID2E. 



p. 351. j n ^9 ma ] eg O f th e g en era Crax, Pauods, Mitua, and Ortalis the 



trachea forms a loop of variable extent, often extending, particularly in 

 the last three genera, to the end of the carina stemi, and then turning 

 up a little way on the left side before it returns. In other cases it 

 extends only about as far as the anterior end of the carina. In the 

 females this loop is altogether absent, or at most the trachea presents a 

 slight curve in the neck. 



Species examined. 

 Crax globicera. 3 , $ . 



alector. $ , 2 



sclateri. tf , $ . 



daubentoni. 3 , $ . 



alberti. <$ , $ . 



carunculata. <$ , $ . 



[The females only of C. globulosa and C. incommoda have yet been 

 examined. The trachea is simple.] 

 Pauxis galeata. <$ , $ . 

 Mitua tuberosa. c? , $ . 



tomentosa. 3 , $ . 



Ortalis albiventris. J , $ . 



garrula. tf. [The $ according to Humboldt t has the trachea 



simple.] 



motmot. c? [The female has a simple trachea according to 



Latham, who describes this species J under the name of Phasianus 

 parrakaJ] 



In Penelope jacucaca the trachea is convoluted in both sexes ; and the 

 same is the case in the male of P. pileata, the condition of the female 

 being unknown. 



[In Penelope cristata and P. purpurascens the male has no loop ; and 

 the same is the case in Pipile cumanensis and P.jacutinga. Only females 



* Two specimens showing different degrees of development of this structure may be 

 Been mounted in the Hunterian Museum (Preps. 1156, D & E). 



t Humboldt and Bonpland, ' Eecueil d'observations de Zoologie,' &c. p. 5. Paris, 

 1811. 



\ Linn. TranB. iv. p. 100 &c. 



