Hamilton, — Bihliograpliy of the Diuornithidae. 229 



development of the adjacent part. It is to be noticed that 

 the foramina at the back of the sternum in this region are 

 excessively variable in size, being larger and more frequent as 

 the indications of a coracoid are greater in the front of them. 

 In the specimen figured (PI. XXIV., fig. 1) there is quite a 

 large pit or lacuna in the rear of the depression behind the 

 processes. The hinder border of the middle portion of the 

 sternum (No. 256, fig. 3) is deeply notched, as in some sterna 

 of Apteryx. 



Behind the costal processes on the neural surface of this 

 sternum there are two small processes {a, fig. 3) directed in- 

 wards. The same process occurs in No. 313, but only on the 

 left side. 



Amongst the small bones I have two fragments resembling 

 the processes, one of which may have belonged to the sternum 

 of the specimen in the Museum. In my next paper I hope to 

 give a resume of the whole collection, and to include the 

 references to Harpagornis in Dr. Von Haast's third paper, in 

 vol. xiii. of the Transactions, which I seem to have over- 

 looked. 



DESCRIPTION OF PLATES XXIII. , XXIV. 

 Plate XXIII. 

 Fig. 1. Skull of male Harpagornis ; extreme length, 150mm. 

 Fig. 2. Side-view of sterniim of male Harpagornis. 



Fig. 3. Front- view of sternum. Length, 145mm. = 5-7in. ; width, 87mm. 

 Fig. 4, Lower margin of sternum of female Harpagornis. Length, 

 165mm. = 6-5in. ; width, 90mm. 



Plate XXIV. 



Fig. 1. Sternum of Anomaloptcryx didiforniis, No. 313, from Castle Rock, 

 with anchylosed scapulo-coracoids (?). 



Fig. 2. Side-view of left scapulo-coracoid. 



Fig. 3. View from the back of the anchylosed scapulo-coracoid on the 

 right side of the specimen No. 256, deposited in the Otago 

 University Museum ; a, small process from costal. 



Art. XXI. — Materials for a Bihliograpliy of the Dinornithidae, 

 the Great Extinct Birds of Neiu Zealand, usually called 

 Moas. 



By A. Hamilton. 



[Bead before the Otago Institute, IMh November, 1893.] 



The great increase within the last decade of transactions 

 and proceedings of societies, magazines, and journals has 

 rendered it more difficult than ever for students of natural 

 history to peruse the literature of any subject that he may be 



