TLATALEID^E. iO 



general structure as the corresi)onding bone of Ibis lotuji- 

 rostris, with the exception that the anterior intercondylar 

 gorge is relatively narrower ; the similarity is especially 



rij?. 20. . 



Ibidopsis hordwclliensis. — Anterior and distal aspects of the distal extremity 

 of the right tibio-tarsus ; from the Upper Eocene of Hampshire. {. 



shown by the inward inflection of the entocondyle, and 

 the form and position of the extensor bridge, and the 

 prominent ridges bordering the groove above the bridge. 

 Presented hy S. Laing, Esq., 1862. 



36794. The imperfect left tibio-tarsus, apparently belonging to the 

 same individual as the preceding specimen ; from Hord- 

 well. The distal portion is wanting and the proximal 

 extremity imperfect. The cnemial crest has the same rela- 

 tive proportions and position as in Ibis, but is less deep ; 

 the fibular crest is of the same relative length as in the 

 latter. Presented hij S. Laing, Esq., 1862. 



A. 146. The extremity of the cranial rostrum of a long-billed bird, 

 probably referable to this form ; from Hordwell. There 

 is a lateral groove on either side, as in Ibis, but the deflec- 

 tion is confined to the tip, which is not spatukte. 



Hastings Collection. Purchased, 1855. 



30333. The imperfect distal portion of a right humerus, agreeing in 

 relative size with the tibio-tarsus, and not improbably- 

 referable to the present form ; from Hordwell. The ulnar 



