HESrEROKN'ITIIlDit;. 385 



Genus PSOPHIA *. 

 Linnaeus, Syst. Nat. i. p. 203 (17G0). 



Psophia crepitans. 



Psophia crepitans, Linnseus, Syst. Nat. i. p. 2t)3 (17GG); Scl. *fc; 

 Salv. Nomeucl. Av. Neotrop. p. 141 (187;i). 



The Common Trumpeter. 



llab. Guiana. 



1922. Skeleton. 0. C. loio. South Collection. 



1923. Sternum of female, with shoulder-girdle. 



From the Zoological Sociefi/. 



1924. Sternum, with shoulder-girdle. S. S. 1470. 



Presented In/ P. L. Sclater, Esq., F.R.S. 



Suhord.T Vll. IIFSPERORXITHES. 

 Family HESPERORXITHID.E. 



Genus HESPERORNIS. 



Marsh, Amer. Journ. Sci. (3) iii. p. 57 (1872). 



f^tsipcronit^ rfcjaltsi. 



Hesperornis regalis, Marsh, ut supra ; D'Arcy Tliorapson, Stud. 

 Miis. Dundee,!, no. 10, pp. 1-15 (1890); Fiirbringer, MB. 

 Deutsch. Yer. Schutz, 1890, pp. 488-513; Shufeldt, Nature, 

 xUii. p. 176 ; Helm, t. c. p. 369 (1890) ; Lydekker, Cat. Fossil 

 B. p. 205 (1891). 



The Toothed Diver. 



Hah. North America (fossil in the Cretaceous of Kansas). 



1925. Cast of portion of left mandible, retaining three teeth. 



Front the original in Yale College Museum. 



* ('/. P.,Ml(lanl, Proc. Zoul. Sic. 1890. pj). :12S)-:341. 

 PART III. 2C 



