174 ON OPISTITOCOMUS CRISTATUS. 



EXPLANATION 



OF 



Plate 8. 



Fig. 1. Wing when the bird is creeping about. 



)> 2. » » » » » at rest. 



» 3. Crop. 



» 4. Stomach. 



» 5. Rectum : a. anus. 



» 6. Wind-pipe. 



)) 7. Egg (natural size). 



Notes from the Leyden M.useum., "Vol. X. 



