KEY TO FAMILIES. 



FIG. 12. 



Fio. 13. 



FIG. 11. 



FIG. 14. 



FIG. 10. 



FIG. 15. 



Order IV. Steganopodes. GANNETS, COBMOBANTS, PELICANS (Fig. 



10), etc. 

 All the toes, including the hind one, connected by webs. 



A. Bill generally sharply pointed, without a hawklike hook at its tip. 



a. Chin, or space between the forks of the lower mandible, feath- 

 ered. . . . Family Phaethontidw : TBOPIC BIBDS (Fig. 11), p. 91. 



b. Chin bare. 



b 1 . Bill stout and slightly curved at the tip; middle tail-feathers 

 without "flutings". . . . Family Sulidw : GANNETS (Fig. 12), 

 p. 92. 



i 2 . Bill straight and slender; middle tail-feathers fluted. . . . 

 Family Anhingidat : DARTEBS (Fig. 13), p. 93. 



B. Bill with a hawklike hook at the tip. 



a. Lores bare. 



a 1 . Bill over 12-00, with a large pouch. 



PELICANS, p. 95. 

 a 9 . Bill under 12-00, no large pouch. . 



cidce: COBMORANTS (Fig. 14), p. 94. 



b. Lores feathered. . . . Family Fregatida : MAN-O'-WAR BIRDS (Fig. 

 15), p. 97. 



. Family Pelecanidce : 

 Family Phalacrocora- 



