234 ACCIPITER PALUMBARIUS. 



curve, which slopes away towards the angle of the 

 mouth. The lower mandible has the angle broad and 

 short, the dorsal line convex, the back broad and round- 

 ed, the sides convex, the sharp edges inflected, the tip 

 obliquely truncate, rounded, with a shallow sinus be- 

 hind. 



The upper mandible within is nearly flat, with a pro- 

 minent central line ; the lower deeply concave, with a 

 narrower prominent line. On the palate are two pa- 

 rallel papillate ridges. The palatal slit is narrow- 

 oblong behind, linear before, laterally with two curved 

 papillate lines on each side. The tongue is fleshy, sa- 

 gittate and papillate behind, channelled above, the tip 

 rounded and emarginate, its lower surface horny, with 

 a shallow central groove. 



The eyes are large ; the eyelids bare, furnished with 

 ciliary bristles on the margin. Nostrils in the fore 

 part of the cere, oblique, obi ongo- ovate, broader behind, 

 aperture of the ear round and rather large. 



The tarsi, which are anteriorly feathered rather 

 more than a third down, are of moderate length, 

 strong, slightly compressed, anteriorly covered with 

 fourteen scutella, behind with twelve scutella, large 

 hexagonal scales towai'ds the upper, small roundish 

 ones towards the lower joint, the sides reticulated. 

 The toes are strong, the third and fourth connected by 

 a web extending to the second joint of each ; the fii'st 

 and second toes neai-ly equal in size, the fourth longer 

 but much more slender, the third much longer. The 

 bases of all the toes are reticulated with small roundish 

 scales. On the first toe are six scutella, on the second 

 four, on the third eighteen (some of them on the joints 



