228 Transactions. — Zoology. 



fissure, and several other bones were obtained. At the very 

 end, firmly fixed in the hard carbonate of lime, the edge of 

 a large bone appeared, and I recognised this as the sternum 

 oi H. moorei (PI. XXIII., fig. 4); so we spent a considerable 

 time in cutting out with an axe sufficient of the sides of the 

 fissure to enable a block to be detached at the end containing 

 the sternum. The block was then carefully removed and 

 packed away. Work at the main fissure was renewed next 

 day, but without much success. Another almost entire skele- 

 ton of a young nioa {Anomalopteryx) was obtained in good 

 preservation, and, as usual, a vast number of small bones of 

 duck, kiwi, kakapo, &c. 



The most curious and interesting specimen found here is 

 the sternum, figured at PI. XXIV., fig. 1, of Anomalopteryx 

 didiformis. 



Amongst the remains described in the previous paper was 

 a very good skeleton of an adult A. didiformis, which is at 

 present deposited in the Otago University Museum. It is 

 remarkable in having a process on the right side of the upper 

 edge of the sternum of an irregular form, about 25mm. in 

 height (PI. XXIV., fig. 3). I concluded at the time that it 

 was an occasional or abnormal ossification ; but now another 

 specimen has turned up in which the process is present on 

 hoth sides, about 40mm. in height, and corresponding in shape 

 with each other. Having now re-examined the specimen in 

 the Museum, I think there is reasonable ground for supposing 

 that it also possessed two of these processes, the place on 

 the left side corresponding to the base of the process having a 

 surface indicating an irregular articulation, as in Aptornis — a 

 non-synovial union. 



I have since examined several other sterna of the same 

 species, and many of them appear to have originally pos- 

 sessed something of the same kind of episternal process. 



It is quite uncertain what form the scapulo-coracoid took 

 in these small moas, as in the whole series of bones from this 

 fissure I have not found a single bone that can be said with 

 certainty to be a scapulo-coracoid or to belong to the more or 

 less defined pits on the upper edge of the sterna wliich I have 

 considered coracoid notches. I have carefully examined a 

 number of specimens of the same species from Enfield, and, 

 although I have not seen any with the process remaining, there 

 were several that may possibly have had it, that portion of 

 the sternum being abraded or damaged so that no definite 

 opinion could be formed. 



Notwithstanding the apparent coracoid notches at the back 

 of the process, I think these irregular prominences must be 

 anchylosed scapulo-coracoids, and that the depressions, which 

 vary greatly in depth and size, are merely the result of the 



