KO. 2215. A FOSSIL PASSERINE BIRD— SIIUFELDT. 455 



and kind, that there is no certainty about it whatever. On the 

 other hand, if passerine, they surely do not represent Quiscalus 

 purpureus, but only a form about its size, and there is a long list 

 of them. 



My impression is that the specimen is of a passerine bird, one 

 with a short hallux and rather short tarso-metatarsus, but that is as 

 far as wo should go until more material representing the same species 

 comes to hght. 



Plate 60. 



The Blab containing the impressions of the bones of the pelvic extremities, 1 and 2; 

 and 3 those of a part of the pelvis and upper portion of the left femur. All natural 

 size. Reproduced from the author's photograph. 



Plate 61. 



The same, with a, b, c, and d, giving the limb bones as outlined in ink, to better 

 present their number, positions, and proportions. 



