1886.] POINTS IN THE ANATOMY OF CAPRIMULGIDE. 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. 
Syrinx of Agotheles nove-hollandie. 
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 
