248 JOURNAL OF SCIENCE. 



D. ingens, Owen — North Island. 



/>. potens, sp. nov. — South Island. Same size as D. ingens but 

 more robust. 



Sub-genus Tylopteryx. ^ 



Top of the head elevated. Extinct Birds of N.Z , Plate 82. 



D. gracilis, Owen — North Island. 



D. torosus, sp. nov. — South Island. Intermediate in size between 

 D. gracilis and D. strata ioides. 



1). strutldoides, Owen — Both Islands. 



Genus Palapteryx. 



Skull depressed ; the breadth of the squamosals less than the 

 length from the supra-occipital to the nasals. Beak about as long as 

 the head, more compressed than in Diuornis ; the lower jaw nearly 

 straight. Extinct Birds of N.Z., pi. 45. A scapulo-coracoid with a 

 glenoid cavity and probably a wing. 



P. dromioides, Owen — North Island. 



P. plenus, sp. nov. — South Island. Bather larger and stouter 

 than P. dromioides. 



Genus Anomalopteryx. 



Skull very convex, the maxillo-jugals curved. Beak short, slightly 

 compressed and rounded at the top ; the lower jaw strong and nearly 

 straight. Trans. Zool. Soc, vol. ii., pi. 52. A small scapulo-coracoid. 



A. didiforniis, Owen. = D. parvus, Owen-- Both Islands. 



A. antiquus, sp. nov. — Timaru, in older pliocene rocks. Smaller 

 than A, didiforniis. 



Genus Cki.a. 



Skull convex. Beak short, slightly compressed and rounded at 

 the tip ; the lower jaw nearly straight and rather slighter than in 

 Anomalopteryx. Trans. Zool. Soc, vol. xii., pi. 31. No scapulo- 

 coracoid. 



C. geranoides, Owen — North Island. 



C. cartas, Owen. = D. Oioeni, Haast — North Island. 



Genus Mesoptekyx. ) y 



Skull convex, angled behind. Beak shorter than the head, 



moderately curved, much compressed and pointed at the tip ; the 



lower jaw slender. No scapulo coracoid. Extinct Birds of N.Z., 



pi. 78. ' 



M. didinus, Owen, = D. Huttonii, Owen — Both Islands. A more 

 robust species than A. didiforniis, with which it has been confused. 



Genus Syoknis. 

 Skull convex, rounded behind. Beak shorter than the head, 

 moderately curved, much compressed and pointed at the tip ; lower 

 jaw strong. Extinct Birds of N.Z.. pis. 76 and 73. No scapulo- 

 coracoid. 



