130 



can be easily rubbed off. The small number that I procured 

 were of nearly the same form and dimensions. One of them 

 measured .053 in length by .0-42 in breadth ; in shape very simi- 

 lar to a common hen's egg. The eggs were sometimes deposited 

 upon the bare rock and sometimes on a few twigs, which had 

 however the appearance of having accidentally fallen into the 

 hole. Measurements : — 



(?* (? 9 9 



Length . . . .830 .785 .740 .790 



Length to end of claws .350 .367 .350 .345 



Length to end of wings .632 .620 .622 .633 



Extent . . . .945 .930 .925 .960 



Wing from flexure . .290 .280 .274 .290 



Tail beyond wings . .410 .400 .335' .380 



Length of tail . . .528 .495 .450 .495 



Difference of tail-feathers .476 .435 .400 .430 



Tarsus . . . .019 .022 .022 .020 



Middle toe . . .036 .034 .033 .032 



Middle toe nail . . .011 .010 .009 .010 



Hind toe . . . .014 .012 .013 .012 



Hind toe nail . . .007 .005 .005 .006 



Outer toe . . . .035 .032 .032 .032 



Outer toe nail . . .008 .007 .008 .009 



Liner toe . . . .029 .027 .027 .026 



Liner toe nail . . .010 .008 .008 .009 



Bill along ridge . . .055 .051 .051 .052 



Gape . . . .077 .074 .067 .072 



Depth of bill . . .018 .018 .016 .017 



Breadth of bill . . .009 .008 .008 .007 



Length of nostrils . .005 .005 .005 .005 



Breadth of nostrils . . .0012 .0012 .0012 .0012 



Dissection. Neck very muscular. The sternum and ribs, 

 which are very strong, cover the greater part of the abdomen. 

 The ribs extend backwards .03 from the posterior edge of the 

 sternum. There are seven sternal ribs, the 7th arising from the 

 6th ; they are united with the seven posterior dorsal. There 



* This specimen is the one with the h"ght yellow bill. 



