GEUES 



367 



Aramus scolopaceus has the same thin diffased tendons ; 

 hut they are distinctly divided below into a main tendon and 

 a wristward slip. There is no patagial fan. 



The anconcBUs has generally, if not always, a well-marked 

 broad humeral slip. 



The typical formula of the leg muscles for the cranes is 

 ABXY-1-. This is the case with all the members of the 

 genus Grus, excepting G. leucogeranos, where I could find 

 neither A nor B. In Aramus and Balearica pavonina the 

 formula is BXY + , and in B. regulorum, as in G. leucoge- 

 ranos, XY+ only.. In G. americizwa the femoro-caudal is 

 minute and has but a feeble accessory. 



The deep flexor tendons are united by a strong vinculum. 



Both peroneals appear to be present ; but the only notes 

 at my disposal on this matter refer to G. leucogeranos. 



The left lobe of the liver is much smaller in B. pavonina, 

 a little smaller in G. antigone and G. virgo. The proportions 

 are reversed in Aramus. 



The gall bladder is present ; there is a good gizzard ; the 

 proventriculus is zonary. The following are intestinal mea- 

 surements : — 



Grus antigone 



leucogeranos 

 carunculata 

 americana S 

 canadensis S 

 australasiana S 

 virgo 



Balearica pavonma 9 

 „ regulorum S 



Aramus scolopaceus 9 



Small Int. 



80-5 



Inches 



69 



78 



(<?)86(9) 

 76 

 72 



84 (73) 

 51-5 

 54 

 64 

 40 



The intestinal coils in the crane tribe are very character- 

 istic and quite unlike those of any other birds except the 

 rails and bustards. The figure of Gariama shows the 

 characters of the Grues generally and may be compared with 

 that of Crex on p. 323. 



The genus Grus has the most typical syrinx. In G. leuco- 

 geranos the first bronchial semi-rings are firmly attached to 



