748 



MR. J. WOOD-MASON ON THE 



[June 18, 



were purchased alive and killed and examined before muscular con- 

 traction had set in, the trachea was found to be looped as in fig. 1 ; 

 a specimen living when obtained, but which died unexpectedly and in 

 which decomposition had set in before I had had an opportuuity of 



Fig. 1. 



Uhynchrp.i mpensis $, dissected, so as to show its looped trachea hi situ. 



Fig. 2. 



Ehynchaa capcnais J, dissected, so as to show its straight and simple trachea 



in situ. 



opening it, also had its windpipe looped ; several, however, that were 

 purchased dead had it retracted, almost straight, with the sterno- 

 tracheal muscles strongly contracted. 



2. Females not nearly so richly and deeply coloured as the pre- 

 ceding. In these there was only a slight superficial sinuosity in 



