KEY TO FAMILIES. 



43 



Fig. 12. 



Fig. 13. 



Fig. 11. 



Fig. 14. 



Fig. 10. 



Fig. 15. 



Order rV. Steganopodes. — Gannets, Cormorants, 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 FJiaethontidai : Tropic Birds (Fig. 11), p. 91. 



b. Chin bare. 



J*. Bill stout and slightly curved at the tip ; middle tail-feathers 

 without " flutings ". . . . Family iSulidce, : Gannets (Fig. 12), 

 p. 92. 



0^. Bill straight and slender; middle tail-feathers fluted. . . . 

 Family Anhingidm : Darters (Fig. 13), p. 93. 



B. Bill with a hawklike hook at the tip. 



a. Lores bare. 



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



Pelicans, p. 95. 

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



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



b. Lores feathered. . . . Family Fregatidcn : Man-o'-wab Bikds (Fig. 

 15), p. 97. 



. Family Pekcanidoe '. 

 Family Phalacrocora- 



