2 4 
Osteological Studies of the Subfamily Ardevice. 
measured from the highest point on the trochanterian ridge to the 
lowest point on the outer condyles, is 10.5c. m. long, the tibia, 
24.5 c. m. and the tarso-metatarsus, 17.8 c.m. long. Measuring from 
the highest point on the intercondvloid tubercle to the lowest 
point on the mid trochlea. We may add here the length of the fibula 
which is but 9. c. m, being one and a half centimetres shorter than 
Fig"- 35 “Anconal aspect, proximal extremity of the right humerus of A idea kerodias. 
Fig. 36. —Right humerus of Nycticorax violaceus, juv., anconal aspect. 
Fis, 37.— Right humerus of Ardea candidissivia , anconal aspect. All three bones life 
size from nature, from specimens in the author’s collection. 
the femur, and fifteen and a half shorter than its companion bone 
in the leg. 
The first metatarsal is a free bone, with a peg-like shaft and 
enlarged lower extremity. Somewhat of a dilatation takes place 
