PICARIiE 



flexor perforans cligitorum which supplies the third toe ; so that 

 while the fourth and second toes are supplied by the flexor perforans 

 digitormn, and the first by the flexor longus halkicis, the third is 

 supphed by a twig from both tendons (fig. 2/). 



pa- 



6.s/^^ 



Fig. 4.— Base of the skall of Grus pavoiiia, showing the schizognathous 

 arrangement of palate-bones: vo, vomer: mxiJ, maxillo-palatines; ^J^, pala- 

 tine ; spli.r, sphenoidal rostrum ; 2^iUj pterygoid ; b.sph, basi-sphenoid. 



III.— The oil gland is situated on the dorsal side of the tail of 

 the bird just at the root of the tail feathers ; it may be present or 

 absent, and if present it may be surrounded by a tuft of feathers or 

 nude. 



