Anatomy of Acanthidositta chloris. 



607 



immediately behind the claw a soft and prominent pad covered 

 with small papillae; behind this is a strongly constricted 

 area covered with transversely elongated papillae; behind 

 this constriction there succeeds two or more well-marked 

 pads covered with large papilla?. The size and position of 



A. Outer view of left foot, to shew the podotheca and form of the toes. 



B. Sole of foot, to shew the slight syndactylism and the peculiar 



constriction between the pads. 



these pads are determined by the length of the phalanges ; 

 at the articulation of each joint the skin, as on the under 

 surface of our fingers, thins out and becomes creased. The 

 figure (text-fig. 36) should make these points clear. 



In this general topographical survey we may fittingly 

 include an account of the form and position of the external 

 aperture of the ear, which appear to be unique (text-fig. 37, 

 A, B, p. 608) . The description thereof is as follows : — 



The usual circular aperture at the base of the lower jaw, 

 which makes the passage to the middle ear, is in Acanthido- 



2s 2 



