1886.] 



POINTS IN THE ANATOMY OF CAPRIMULGID^. 



149 



chial semiring, which differs from the two preceding in being more 

 slender ; the two first bronchial semirings are stout and closely 

 applied. The terminal ring of the trachea is pointed downwards 

 anteriorly, as shown in the figure ; posteriorly it is incomplete ; 

 the penultimate, antepenultimate, and the next tracheal rings are 



Fig. 1. 



Syrinx of Nyctidromus albicollis. 

 Fig. 2. 



Syi-inx oi Mgotheles nova-hollandim. 



separate anteriorly, but posteriorly are fused for a short space in the 

 middle line, and are continuous with the pessulus, which arises ante- 

 riorly from the last tracheal ring. 



Batrachostomus. — I am indebted to the kindness of Mr. R. Bowdler 



