606 



Mr. F. E. Beddard on some Points in 



the bronchial syrinx of the Centropine Cuckoos in the genus 

 Khamphococcyx. This genus has not, so far as I am aware, 

 been examined anatomically. Through the great kindness 

 of Dr. Charles Hose, of Borneo, I have come into possession 

 of two individuals belonging to as many species of this 

 genus. The two species are K. erythroynathus and R. 

 microrhynchus. The latter example is a hen, the former 

 a cock. This genus, as might have been expected, has 

 the complete Garrodian leg-muscle formula, as have the other 

 Phoenicophainse. The pterylosis is constructed upon the 

 same plan, and in details is similar to that of its other 

 allies. The ventral tract divides into two halves at the 



rio-.18. 



End of trachea and bronchi of li/uunphococcyx 

 ("•ythrognaflixs ; ventral aspect. 



beginning of the neck, and leaves at first but a narrow space 

 between the two. Each half, again, in the Centropine aud 

 Phoenicophaine manner, divides into two tracts. The exact 

 point at which this division takes place is not easy to mark ; 

 the process of divergence of the outer row of feathers 

 from the inner being so gradual. But, in any case, it is 

 after a single row of strong feathers has been given off to 

 the wing. After the separation of the two divisions of the 

 ventral tract of each side, the stronger inner rows are con- 



