"2 CARINAT^. 



The superior intereotylar tuberosity of the tarso-metatarsus is 

 elongated vertically ; by whicli feature, together with the open 

 channel of the talon, this portion of the bone can be at once distin- 

 guished from that of the Gruida'. 



Typically the distal condyles of the tibio-tarsus (fig. 19) are 

 closely approximated, the intercondylar groove being continuous 

 with the middle line of the shaft ^ ; and the extensor bridge usually 

 has a prominent intercondylar tubercle -, below which is a deep 

 depression for the tuberosity of the tarso-metatarsus. 



The coracoid is somewhat long, with ^a very slight distal ex- 

 pansion, small hyosternal process, rounded inner border, and 

 normally no perforation at the base of the lamelliform subclavicular 

 process. 



The prominent epicondylar tuberosities of the humerus readily 

 distinguish this bone from that of the Gruida'. The shaft is rela- 

 tively stout, the del to-pectoral crest long and depressed, with an 

 oval surface for the pectoralis major, and the surface for the 

 brachialis anticus is very shallow. 



The angle of the mandible is truncated. 



Genus LEPTOPTILUS, Lesson ^ 



Syn. Argala, Hodgson K Osterophea, Hodgson \ 



Including the largest existing forms. The following points 

 distinguish this genus from Giconia. The trochleas of the tarso-meta- 

 tarsus are more expanded and form a flatter curve, the third trochlea 

 descending less far below the level of the other two. The distal 

 end of the tibio-tarsus is narrower and deeper, with the condyles 

 more approximated and a longer and more oblique extensor 

 bridge, with a smaller tubercle. The entepicondylar tuberosity 

 of the humerus is more prominent. 



^ This character, together with the prominence of the extensor bridge, at 

 once distinguishes this part of the tibia of the CiconiidcB from that of the 

 Gruiclw. 



^ Absent in Pclargoims. 



^ Traite d'Ornithologie, p. 583 {\^'&\).—Leptoptilos. 



•' India Review, vol. ii. p. 563 (1838). 



' In Gray's ' Zoological Miscellany,' p. 86 (1844). 



J 



