GRUES 



377 



eight ribs 



articulate 



(fig. 184) is entire and unnotched 

 with it. 



The atlas is notched for the odontoid process. From 

 the fourteenth cervical vertebra to the third dorsal there are 

 blade-like median hypapophyses. In front of the fourteenth 

 the catapophyses nearly enclose a canal ; they get further 

 apart and die away anteriorly. The following table shows 

 the number and character of the hypapophyses in various 

 Grues : 



The family Eurypygidse contains but one genus and 

 species, Eurypyga helias, native of South America. It has 

 an oil gland, which is generally nude but occasionally tufted, 

 and twelve rectrices. Eurypyga, like Rhinochetus and 

 Mesites, has powder-down patches, but their arrangement is 

 very different from those of Rhinochetus. Dorsally there is 

 on either side of the dorsal tract a compact dense triangular 

 patch ; in front it continues over scapula as a band which 

 runs on to the sternal surface, and there forms a sparsely 

 feathered patch more or less continuous with pectoral tract 

 of contour feathers. There are a few scattered powder- 

 downs on axilla and along neck. 



The tensor patagii brevis is broad and rather diffused, 

 stronger at the two edges ; it sends off a wristward slip. 

 The tensor longus is reinforced by a strong biceps slip. 



The expansor secundariorum is strong and 'ciconiine.' 

 The ancoiiicus has a humeral attachment. The insertion of 

 the deltoid extends halfway down the humerus. I have 

 noticed in the pectoralis primus a vertical septum dividing 

 the muscle into a right and left half. 



The muscle formula of the hind limb is complete, i.e. 

 AJBXY+. The glutceus I. extends well over the biceps. 

 Both peroneals are present. 



