10 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I40 



MEASUREMENTS OF Baeoptevyx latipes (in millimeters) 



Tarsometatarsus : 



Length, 184, 



Transverse breadth of anterior end, 22.6, 22.6, 23.5, 23.6, 23.9. 



Transverse breadth of shaft near center, 8.0, 8.0, 8.3, 8.3, 8.5, 8.6, 8.8, 9.1. 



Transverse breadth of distal end, 20.4, 20.8, 22.4, 22.7, 

 Tibiotarsus : 



Smallest transverse breadth of shaft near distal end, 9.9, 9.9, 10.4, 10.5. 



Transverse breadth across condyles, 19.1, 19.8, 20.2, 20.9, 21.0, 21.5. 

 Femur : 



Length to distal end of internal condyle, 98.2, 100.8. 



Transverse breadth through head, 23.0, 23.7, 24.3, 24.8. 



Transverse breadth near center of shaft, 10.2, 10.5, 10.7, ii.o, ii.o, n.4, 11. 5. 



Transverse breadth through condyles, 22.0, 22.2, 23.2, 23.7. 

 First phalanx of third toe: 



Length, 29.0, 29.4, 29.8, 31.6. 

 Humerus : 



Transverse diameter of proximal end, 33.5. 



Transverse diameter near center of shaft, 12.4, 13.1, 13.4. 



Transverse diameter through condyles, 25.6. 

 Carpometacarpus : 



Length, 79.0, 79.7, 79.9, 80.1. 



Vertical height through metacarpal I, 20.3, 20.5, 20.8, 21. i, 21.3, 21.6. 



Length of intermetacarpal space, 41.5, 42.0, 42.6, 43.8, 44.6. 

 First phalanx of digit 2 : 



Length, 34.7. 



Vertical height near center, 11.3. 

 Coracoid : 



Length, from head to inner distal angle, 54.0. 



Transverse width of shaft at narrowest point, lo.o 



Family RALLIDAE : Rails 



The collection contains various bones from four species of rails, 

 one very small, two of intermediate size, and one nearly as large as 

 the modern clapper rail. These are not clearly marked in the present 

 collection so that no attempt is made to describe them here in detail, 

 particularly since complete material for one of them is now in other 

 hands for study. 



