SKELETON 



401 



,a? 



sm^f 



-p.r 



ver. c. 



cr. 



B 



cm. 



Fig. 314. — Ceivical vertebrae of a pigeon. 



A, From in front ; B, from behind. 



az., Prezygapophysis ; cr., cervical rib ; cm., centrum ; n.a., neural arch ; p.z.. postzygapophysis 



ver.c. foramen of transverse process. 



Synsacrum 

 (I thoracic , 5 lumbar, 

 Z sacra/, 5 caudal) 



pyg 



Lsch. 



vac. 



Fig. 315. — Skeleton of a pigeon. — From Young, The Life of Vertebrates, 1950 



Clarendon Press, Oxford. 



at.. Atlas ; ax., axis ; C.12, twelfth cervical vertebra ; car., keel; carp., carpus ; cor., coracoid ; cr., cervical 

 rib ; delt.r., deltoid ridge ; fern., femur ; fib., fibula ; fur., furcula ; hyp., hypapophysis ; i/., ilium ; 

 isch., ischium ; m., auditorv meatus ; vie. 2, second, and tnc.3, third metacarpal ; pub., pubis ; pyg., 

 pygostyle ; rad., radius ; sc.', scapula ; st., body of sternum ; tar.met.. tarsometatarsus ; tib.tars., tibio- 

 tarsus ; uln., ulna ; u.p., uncinate process ; vac, vacuity in skull ; I-I\' digits. 



