DINORNITHIDJE. 331 



32166. The imperfect pelvis aud sacrum ; from lluamoa. The greater 

 part of the postacetabular region of the sacrum and ilia is 

 wanting, but both acctabula are preserved, and a con- 

 siderable portion of the left ischium remains. The cha- 

 racteristic great depth and concavity of the anterior wall 

 of the acetabulum are well shown. There are only six 

 prcacetabular vertebrte, the first of which carries a free 

 rib. Walter Mantcll Collection. 



i. The Skull. 



32200. The calvarium ; from the South Island. Described aud 

 {F'kj.) figured by Owen in the ' Trans. Zool. Soc' vol. vii. p. 123, 

 pi. X. figs. 2-5 ; and also in his ' Extinct Birds of New 

 Zealand,' p. 262, pi. Ixxvi. figs. 2-5. This specimen 

 agrees in all respects with the skuU of the type sKclcton ; 

 and indicates a large, and probably female, individual. 

 The supraoccipital region is prominent, so that the superior 

 margin of the foramen magnum is more prominent than 

 the occipital condyle. The shortness and rounded contour of 

 the paroccipital processes are well shown. The extremity 

 of tlie presphenoidal rostrum is imperfect, and has been 

 incorrectly restored in the figures. 



Walter Mantell Collection, 



32202. An imperfect skull, in several fragments, provisionally re- 

 garded as referable to the male of this species ; from the 

 South Island. The specimens comprise the imperfect 

 calvai'ium, two portions of the presphenoidal rostrum, the 

 imperfect premaxilljB, and part of the symphysis and two 

 rami of the mandible. In addition to being slightly 

 smaller and relatively narrower, the present specimen 

 differs from the preceding by the form of the supraocci- 

 pital, which has no prominent median process, so that the 

 occipital condj'le projects beyond the plane of the upper 

 margin of the foramen magnum. 



Walter Mantcll Collection. 



32219. The anterior part of the prcmaxillae ; from the South Island. 



Walter Mantcll Collection. 



32214. The anterior extremity of the premaxiUae of this or an 

 allied species ; from the South Island. 



Walter Mantell Collection. 



32214 a. The imperfect prcmaxillte of a larger bird : from the 

 South Island. Walter Mantell Collection. 



