378 PEOr, T. JEITEET PAEKEE ON THE CEANIAL OSTEOLOGY, 



2. Mesoptertx, species a. 



A cranium and mandible from Te Aute, near Napier. (Coll. A. Hamilton.) 



This skull was referred by Prof, Hutton to Cela gercmoides, but the evidence for 



the determination appears to me to be insufficient, and I think it best to leave the 



name in abeyance ^. 



Figured in outline, Plate LXI. figs. 28 & 41, Plate LXII. fig. 52. 



3. Mesoptertx, species |3. 



An entire skull found by Mr. A. M'Kay in a limestone fissure on Salisbury Tableland, 

 Nelson. (Col. Mus., Wellington.) 



This skull, which was found associated with the cervical vertebrae, is one of the 

 most perfect ever discovered. It does not correspond with any of the figures or 

 descriptions I have met with and appears to belong to a species the skull of which 

 has not hitherto been described. 



Figured on Plate LX. figs. 20 & 21. 



4. MesopteetXj species y. 



The skull on a mounted skeleton of M. didina, from Hamilton Swamp. (Otago Univ. 

 Mus.) 



This skull differs from the Enfield specimens of M. casuarina in the form of the 

 orbit, which is right-angled as in Dinornis. 



Figured in outline, Plate LXI. figs. 30 & 44, and Plate LXII. fig. 54. 



Genus Anomaloptertx, Eeichenbach. 



1. Ajstomaloptertx didiformis, Owen. 



a. Three perfect crania with premaxillse, maxillo-jugal arches, quadrates, and mandibles; 



all found in the same cave (with the skeletons) at Castle Rocks, Southland. 

 (Mr. A. Hamilton's collection.) 



b. One perfect and several imperfect immature crania, from the same locality. (Coll. 



A. Hamilton.) 



c. A cranium v,ith ((associated) premaxillse ; locality unknown. (Colonial Museum, 



Wellington.) 



These skulls are assigned to this species in accordance with Prof, Hutton's 

 researches (9, p. 123), confirmed by Mr. Hamilton's discoveries at Castle Rocks. 

 The skull referred by Lydekker (12, p. 275) to this species is apparently that of 

 Mesopteryx didina. 



The most perfect of the immature crania referred to above is figured on 

 Plate LVIII. figs. 12 & 13. 



^ Since -writing the above, Captain Hutton has lent me for examination a cranium which he considers to 

 be that of Megalapteryx tenuipes, since it was found in a cave associated with bones of that species. The 

 skull was a good deal damaged, but appears to agree very closely with that of Mesopteryx, species a. — 

 June i89fj. 



