KEY TO FAMILIES. 



43 



Fig. 12. 



Fig. 13. 



(S^'^i 



Fig. 11. 



Fig. 14. 



Fig. 10. 



Fig. 15. 



Order IV. Ste^anopodes. — Gannets, Cormorants, Pelicans (Fig. 

 lOj, 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 Fhaethontidoi : Tropic Birds (Fig. 11), p. 91. 



b. Chin bare. 



h^. Bill stout and slightly curved at the tip; middle tail-feathers 

 without "llutings". . . . Family SSulidoi: Gannets (Fig. 12), 

 p. 92. 



}fl. Bill straight and slender; middle tail-feathers fluted. . . . 

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

 £. Bill with a hawklike hook at the tip. 



a. Lores bare. 



a^. Bill over 1 2-00, with a large pouch, , , . Family Pelecanidoe '. 



Pelicans, p. 95. 

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



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



b. Lores feathered. . , . Family Fregatidce : Man-o'-war Birds (Fig. 

 15), p, 97. 



