HuTTON. — On the Moas of the North Island. 5i5 



distal width, 147mm. The smallest femur is : Length, 

 325mm. ; prox. width, 117mm. ; raid, width, 45mm. ; distal 

 width, 132mm. 



This species was far more common than the last; but, like 

 it, it is distinguished from its allies in the South Island by 

 greater slenderness of limb. Mr. Lydekker gives also the 

 greater obliquity of the extensor bridge of the tibia as a 

 character by which the North Island species can be recog- 

 nised from those of the South Island, but I cannot follow him 

 in this. 



Dinornis struthioides. 

 Dinornis novcB-zecdandicz (part), Owen, Pro. Zool. Soc, 1843, 

 p. 8 (no description). Dinornis struthioides, Owen, Trans. 

 Zool. Soc, iii., p. 244 (1844). Dinornis dromioidcs, Ow^en, 

 I.e., iii., p. 319 (1846), tibia and metatarsus. Dinornis 

 struthioides, Owen, I.e., iv., p. 141 (1853). Dinornis 

 gracilis, Owen, I.e., iv., p. 145 (1853), tibia and metatarsus. 

 Dinornis struthioides and gracilis, Lydekker, Cat. Fossil 

 Birds in Brit. Mus., pp. 242 and 248 (1891). Dinornis 

 struthioides, gracilis, and Palapteryx dromioides, Hutton, 

 Trans. N.Z. Inst., xxiv., pp. 119-121 (1892). 



Figures. — Metatarsus, Trans. Zool. Soc, iii. (and Ex- 

 tract Birds), pi. 27, fig. 2; pi. 48 (E.B., pi. 40), fig. 2 

 {dromioides) ; iv., pi. 41 (E.B., pi. 54), figs. 3, 4 {gracilis) : 

 tibia. I.e., iii., pi. 47 (E.B., pi. 39), fig. 1 {dromioides) ; I.e. iv., 

 pi. 42 (E.B., id1. 55), tigs. 1, 2 {gracilis) : femur, I.e., iii. (E.B.), 

 pi. 21, fig. 3riv., pi. 41 (E.B., pi. 54), fig. 2: cranium. I.e., 

 iii., pi. 38 (E B., pi. 16), figs. 1-4. 



This species varies very much in size, and possibly two- 

 may be included. The type is a metatarsus 279mm. in 

 length. There is an almost perfect skeleton in the collection 

 of Sir "Walter Buller, and an imperfect one in the British 

 Museum. In the Wellington Museura there are the bones 

 of a leg, found together, which have the following lengths : 

 Metatarsus, 302mm.; tibia, 559nun., femur, 286mm. 



The following are the dimensions of the largest and 

 smallest bones in the Canterbury Museum : — 



35 



