III. 42. — Types of Pelvic Girdles 



1, 4, 5, Upper, under and side views of the pelvis of the Road-runner (Gcococcyx). 



2, 6, Upper and side views of the pelvis of the Red-throated Diver. 



3, Upper surface of the pelvis of a cuckoo. 



P.p. = Pectineal process. II. = Ilium. P. = Pubis. Is. == Ischium. 



