DESrOKNITHID^. 289 



rating the temporal fossa from the occiput. A. mrta, being appa- 

 rently allied to the two last-named species, would probably have a 

 similar type of skull. 



In the form of the tibio-tarsus and other limb-bones the present 

 species approximates to Pachijomis, and it should perhaps, therefore, 

 be regarded as the representative of a distinct genus connecting the 

 latter with Anomaloptenjx. 



Hah. Typically the North Island, and apparently also the South 

 Island. 



a. The Tibio-tarsus. 



21789 X. The right tibio-tarsus; from the menaccenite bed' of Te 

 (Fiff.) Eangatapu, near Waingougoro, North Island. Figured in 



woodcut (}5, C, p. 317 ; the dimensions are given above. 



The contour is exactly like that of the tibio-tarsus of 



Pachyornis elephantopus. No. 32017. 



Mantell Collection. Purclmsed, 1838. 



21789 y. A somewhat shorter right tibio-tarsus ; from the same 

 locality. The slight development of the anterior intermus- 

 cular ridge characteristic of Pachyornis is well displayed. 



Mantell Collection, 



21788*. A still shorter right tibio-tarsus, with the distal extremity 

 imperfect ; from the same locality. 2Ianiell Collection. 



32057. A left tibio-tarsus corresponding in size with No. 21789 y ; 

 from the same locality. In all these specimens, when 

 compared with the small tibiae of other species of Anoma- 

 loptcnjx from the same locality, the shortness of the 

 fibular ridge, and the extreme roughness of the fibular 

 border below the smooth interval, are very distinctive. 



^yalter Mantell Collection. 



21790*. A slightly larger right tibio-tarsus, wanting the proximal 

 portion ; from the same locality. The distal inflexion ia 

 very marked. Mantell Collection. 



b. The 2'arso-metatarsus. 



21706. The right tarso-metatarsus : from Te Eangatapu. Figured 



(Fiij.) by Owen in the ' Trans. Zool. Soc' vol. v. pi. Ixvii. figs. 



5, 6, and also in his ' Extinct Birds of New Zealand,' 



pi. Ixx. figs. 5, 6 ; both figures being reversed. This 



specimen, which agrees in relative size with the tibio- 



* See page 226. 



