476 DR. J. V. HAAST ON ZIPHIUS NOVi"E-ZEAL,ANDI.E. [June 6, 



out doubt it injured itself in the same manner as the Lyttelton- 

 Harbour specimen did. The skull under review is also derived from 

 an aged individual ; and, with the exception that its rostrum is rather 

 narrower than that of the Lyttelton- Harbour specimen, it has other- 

 wise somewhat larger proportions. The most marked difference, 

 however, is in the form of the prefrontals. In this skull the pre- 

 maxillaries are much more excavated, and stand I "53 inch apart in 

 the centre of the rostrum. 



The prefrontals, as in the former skull, begin 6 - 50 inches from the 

 point of the rostrum, forming at the beginning a ridge, which con- 

 tinues for about 1 1 inches, constituting the central portion of these 

 bones and only gradually disappearing. For the last 5 inches they 

 have a concave form ; the premaxillaries here approach each other as 

 in the Port-Lyttelton specimen, but stand always half an inch apart. 



Here the beginning of the septum narium rises to within the eighth 

 of an inch of the surface of the premaxillaries, gradually getting 

 thinner and turning obliquely to the left, resting against the left of 

 these latter bones. 



The excavation in the septum narium, however, is much deeper and 

 wider than in the first-described skull, being 3 inches wide and 2k 

 inches deep. 



There is also considerable difference in the teeth of the two skulls. 

 The tooth of this skull is 2-85 inches long, and 0*61 inch broad; 

 it is covered everywhere with rough cement, which forms, principally 

 near the lower extremity, wart-like protuberances, taking near the 

 root-end ridgy forms. It is consequently longer than the tooth of 

 the Lyttelton-Harbour specimen, and, although the tenth of an inch 

 thinner, is a little heavier (198 grains). 



A portion of the pterygoid has been cut away when taking out the 

 skull ; otherwise it is in a fine state of preservation. 



Table of Measurements. ^ ■ 



Extreme length of skull with lower jaw 3 4 - 90 



,, ,, of cranium 3 3" 1 5 



Length of rostrum from the apex of the prsemaxillse 

 to the middle of the line drawn between the ante- 

 orbital notches 1 10*50 



Greatest height from top of nasals to lower border of 



pterygoid 1 5*85 



Greatest breadth across postorbital processes of 



frontals 1 9'12 



Breadth of occipital condyles 7'20 



,, of foramen magnum 2*62 



Height of foramen magnum 2*31 



Breadth of base of rostrum between bottom of ante- 

 orbital notches 1 0*50 



Breadth of rostrum in the middle 5*00 



Anterior nares, greatest width of the two , 3"05 



Height of crest above occipital foramen I 3 20 



Width of occiput 1 5*05 



