Vol. XII. 

 i9'3 



1 Shufeldt, Osteology of Cereopsis novcE-hollandice . 23I 



immediately beyond it is trihedral on section. For the rest, it is 

 nearly cylindrical, while its distal end presents the usual characters 

 of the bone as seen in the Anseres generally. 



The shaft of the radius is but slightly double-bowed, and has 

 a calibre of about one-third of that of the ulna. 



At the carpus we find the two usual carpals — ^the radiale and 

 the ulnar e — each presenting the ordinary ornithic characters. 



Carpo-metacarpus has an extreme length of some 97 mm. Its 

 main shaft (index metacarpal) is straight, subcylindrical, and 

 short, while that of the third metacarpal is but slightly bowed. 

 The proximal phalanx of index metacarpal is elongate and rather 

 narrow, with its posterior expanded portion smooth on both 

 aspects, and never exhibits any vacuities. Other phalanges 

 present nothing worthy of special note beyond the fact that there 

 is a claw on both the pollex digit as well as upon the distal 

 phalanx of index. The former is not shown in fig. 22 of PI. XXXI., 

 as it had been lost from the skeleton. It is, however. })resent on 

 this digit in the right limb. 



Chen hyperhoreiis has the tubercles for the quill-butts of the 

 secondary feathers on the shaft of ulna much more prominent 

 than in Cereopsis, and they are found in a row above a line corre- 

 sponding to the one described above as found on the ulna of the 

 Australian Goose. Otherwise, apart from the matter of size, the 

 bones are quite in agreement with respect to characters, and the 

 same is practically true with respect to the bones of manus on 

 these two anserine fowls. 



The Pelvic Limb (fig. 24, PI. XXXII.) — Differing in some few minor 

 details from the femur of either Branta or Chen, this bone in 

 Cereopsis agrees with both of them in being notably stout and 

 strong. In the Goose here being considered, its extremities are 

 bulky and big, and the shortest cylindrical shaft is straight. 

 The femoral head is about sessile with the upper part of the shaft, 

 there really being no neck connecting the two. Its pit for the 

 insertion of the ligamentum teres is very shallow and diffuse. 

 Both caput femoris and the summit of the shaft are in the same 

 plane, while the massive trochanter major, with its superior and 

 circular limiting line, barely rises above the same. 



On its external aspect the trochanter major has great transverse 

 width, while the trochanter minor can hardly be defined. 



At the distal extremity anteriorly the intercondylar space is 

 very wide, and the surface markedly concaved. The superior 

 ending of the internal condyle does not merge gradually upon the 

 shaft, as does the external one, but presents a characteristic 

 shoulder before doing so. This character is barely noticeable in 

 Branta or in Chen. 



Posteriorly, the popliteal fossa is deep, and situated entirely 

 above the internal condyle, which latter is very broad and 

 rounded. 



All the usual tubercles and depressions for muscular and liga- 

 mentous attachments seen in femora of birds generally are here 



