257 



inn- but hallow ginglymnid joint with the nidimental bones of the antibrachium, and both 

 (hi* rxtrnuil MM! internal condyles re (lightly developed. 



The radius and uln arc almost straight cylindrical (lender boor*, each 9 lines in length. 

 A feebly dirssoued olrcrauon projects above the artirtilar mirfmrr of the ulna. There is a 

 minute raql bone, two metararpsls, and a single phalanx, which mipports thr long curved 

 ubtnst alar daw. The whole length of thi* rudiments! hand i< 7 line*, including the claw. 

 which measures 3( linen. A few strong and short qiiill-feathen are attached by ligament to 

 ilie ulna and metacarpus. 



Thr iliac bone* in riie and shape miemble thoie of the Stmthimu tribe: the length in 

 4 inches and 3 lines. The outer surface presents a slight concavity anteriorly, which gra- 

 dually passes into a convexity posteriorly, the two surfaces not bring separated by the trans- 

 verse elevation observable above the acetabulum in the four large Struthions birds. A distinct 

 epiphyaiftl piace of bow, of a compressed and triangular form, is wedged in between the 

 posterior extremity of the ilk and the first three caudal vertebrae. 



The ischinm extMtdt backward*, |rallel with the sacrum, in the form of a thin plate of 

 bone which slightly expands to its free extremity, which is truncated. 



The pubic element is a slender bony style, connected by ligament to the end of the inchiunt. 

 but attached by bone at its acetabular extremity only. A short pointed process extend* from 

 the anterior margin of the origin of the pubis. In comparing the jwlvis of the .iptrryx with 

 that of the Urge Struthinus birds, we find that the ischia do not meet below the sacrum as 

 in the Mm, but are more dixlant from that and the iliac bones thsn in any of the Struthioui 

 birds; the pubic bones are not joined together at their distal extremities as in the Ostrich ; 

 the extremities of the ischia are not anchylosed to the superincumbent ilia as in the Casso- 

 wary. It is the Kmeii which conies nearest to the Apteryx in the structure of the pelvis, 

 but it also differs in the complete bony boundary of the foramen which transmits the tendon 

 of the obturator iuternus, and which is completed posteriorly by ligament in the Apt fry x. 



The acetabulum communicates, as usual, by a wide opening with the pelvis : a surface 

 Bfafad with a cushion of thick cartilage is continued from its posterior and upper part. 



The femur has the usual characters of that bone in the class of Birds. Its small round 

 head is supported on a very short and thick neck, placed at right angles to the great and 

 single trochantcr : it presents at its superior part a large depression for the strong and com- 

 plex ligamentum ten*. The shaft of the femur is slightly bent, with the convexity forwards, 

 which is increased by a thickening at the anterior part of the middle of the shaft. The con- 

 dyle* are separated by a wide and deep groove anteriorly, and by a triangular depression 

 behind. The outer one U the largest, and is grooved externally, for the articulation of the 

 head of the fibula : the inferior compressed border of the condyle is wedged in between the 

 tibia and fibula. The length of the femur is 3 inches 9 lines. The tibia is 5 inches in 

 length. Two iifiUar and strong ridges are developed from the anterior part of the ex|>andcd 

 head of the tibia ; the tilrnsal one affords attachment to fascia, and to the expanded tendon 

 of the rectus femoria latMsinns t the internal ridge has affixed to it the ligament of the small 

 cartilaginous patella. The head of the tibia sends down an angular ridge posteriorly : the 

 shaft of the bone is rounded, slightly compressed, converging to a ridge externally, to which 

 ridge the fibula is attached in two putoes, beginning half an inch below the bead of the fibula, 



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