218 eatitj:. 



having the same slender and flattened tarso -metatarsus, in which 

 the third trochk-a is strouglj' pedunculated. 

 Eah. Jfew Zealand (South Island). 



A. 156 d. The left tarso-metatarsus, wanting the fourth trochlea ; 



(/•^f/.) from the superficial deposits of Nelson, South Island. This 

 specimen (tig. 53, B) has a length of 0,07-t, and a width 

 at the proximal extremity of 0,012. The flatness of the 

 distal portion of the anterior surface and the marked 

 peduuculation of the third trochlea are well shown. 



No lustory. 



Sptcrpv olucnt, Gould \ 



The smallest species. The rostrum is of moderate length, and 

 the limbs relatively slender. The tarso-metatarsus is comparatively 

 slender, with the lower part of the anterior surface flattened, aud 

 the third troclilea supported on along peduncle. 



Hab. JS^ew Zealaud (South Island). 



A. 157. The left tibio-tarsus, slightly imperfect at the extremities ; 

 from a superficial deposit in JN^ew Zealand. No histori/. 



32237. The right tarso-metatarsus, imperfect at the extremities and 

 somewhat weathered ; from a superficial deposit in. New 

 Zealand. This specimen, which has a length of 0-061, 



« shows all the characteristic features. 



WaUer Mantell Collection. ParcJiased, about 18.55. 



Genus PSEUDAPTERYX, Lydokker (n. gen.). 



Known only by the tarso-metatarsus, iu which the outer foramen 

 above the tubercle for the tibialis anticus is placed on a much lower 

 level than the inner one, and there is no depression on the anterior 

 surface of the shaft ; there is no foramen in the groove between 

 the third and fourth trochleae, but a distinct channel above this 

 groove. 



Pseudapteryx gracilis, Lydekker (n. sp.). 



The type aud only described species. Of the size of Apteryx 

 oiveni, with which species the structure of the distal portion of the 

 tarso-metatarsus accords. 



Hab. New Zealaud. 



' Pi-oc. Zool. Soc. 1847, p. 94. 



