DINORNITHID-E. 345 



with the preceding, but is important as showing that the 

 beak was of the same narrow form as in the type species. 



i\'o history. 



A. 193 a. Cast of a left quadrate probably specifically identical with 

 the preceding. This specimen, which has a larger head 

 than the quadrate of P. elephantopus, fits the quadratic 

 cavity of the cranium No. 32203. No history. 



32180. An imperfect calvarium approximating to No. A. 201, with 



which it is probably specifically identical ; from the South 

 Island. The shape of the paroccipital processes and 

 temporal fossae precisely accord with those of the specimen 

 mentioned. Walter Mantell Collection. 



Pachyornis, sp. b. 



The undermentioned crania are characterized by the extreme 

 shortness of the parietal region, as shown by the close approxima- 

 tion of the postorbital process to the occiput. The larger specimen 

 indicates a bird of the approximate size of P. elephantopus, but 

 apparently a distinct species. The fronto-parietal region of the 

 skull is flattened. 



Hah. South Island. 



32205. An imperfect skuU in numerous fragments, together with 

 the atlas vertebra ; from the South Island. The specimens 

 comprise the imperfect calvarium, part of the nasal region, 

 the left quadrato-jugal and jugal, part of a palato-maxilla, 

 and the hinder portions of the two rami of the mandible. 

 The left mandibular ramus shows the large inner aperture 

 of the dental canal perforating the bone obliquely to join 

 the external lateral vacuity in a manner absolutely cha- 

 racteristic of the genus. The calvarium, although abso- 

 lutely wider across the paroccipitals than the specimen 

 No. 32203 referred to P. immanis, has the postorbital 

 process much nearer to the occiput, while the temporal 

 fossa is considerably smaller. 



Walter Mantell Collection. 



32181. Three portions of a rather smaller skull, perhaps specifically 



identical with the preceding ; from the South Island. 

 The specimens comprise the imperfect premaxillte, the 

 calvarium, and the left quadrate. The basioccipital is 

 remarkable for the extreme prominence of its tubercles. 



Walter ManteU Collection. 



