Annals of the Transvaal Museum. 
75 
The nasals form a deep groove between the protuberances of the 
prefrontals. This groove is parted in two at the premaxillary by the 
central ridge of this bone. The nasals form broad ridges, which do not 
lie in the prolongation of the side ridges of the premaxillary as in 
latirostris, but which lie parallel along the outside of this prolongation. 
These ridges disappear towards the prefrontalia. The nasals direct a 
broad process towards the lacrymals. 
Dimensions : 
Distance from the lower end of the bone on the side ridges 
of the premaxillary to the upper end of the mutual 
suture, between 87 mm. and 115 mm. 
Breadth of both bones together between the protuberances 
of the prefrontals 25 mm. 
Breadth of both bones together over the processes to- 
wards the lacrymalia 116 mm. 
The breadth of both bones between the protuberances on the pre- 
frontals in latirostris is 28 mm., which is an absolute greater breadth than 
in Putterilli. The breadth across the already mentioned processes is in 
latirostris only 81 mm. No comparison can be made with the length 
of the nasals of Mccaigi, which has been given above, because that of 
Putterilli could not be made out with any certainty. 
The Septomaxillaries. 
The septomaxillaries are very large. They form a broad base for 
the exterior nares. Their broad hinder portion, which stands high up 
against the front margin of the nasals, makes a right angle with the front 
portion. It is bounded by the same bones as in latirostris. 
Dimensions : 
Length along the suture with the maxillary between 50 mm. and 55 mm. 
The Lacrymals. 
The boundaries of the lacrymal cannot be made out. The sutures 
with the jugal and the maxillary are clear enough, but there is no sign 
of a suture with the prefrontal. It cannot therefore be made out whether 
the lacrymal is in touch with the nasal. 
The facial surface of the lacrymal between the maxillary and the 
edge of the orbital cavity is very narrow. The smallest dimension of this 
surface is about 6 mm. 
The Jugals. 
As these bones do not deviate from the usual, nothing of interest can 
be communicated about them. 
Length of the facial surface 47 mm. 
The Prefrontals. 
The prefrontals are broad, flat and thick. The sutures with the 
other facial bones have already been mentioned. The sutures with the 
frontals are totally different from those in latirostris. In this form they 
make an angle of ninety degrees with each other, while in Putterilli this 
