1835.] Dentition of the Van Diemen's Land Tiger. 573 



tubercle at each anterior angle, the outer one having a point, forming 

 a small heel before it ; a larger and sharper central process ; a very 

 small additional point arising out of a concave surface between the 

 central process and posterior angle ; and a curved, sharp, cutting 

 edge extending along the inner and posterior side of the tooth, from 

 the central process to the posterior angle. The fifth tooth is, in 

 general appearance, similar to the fourth, but rather larger than it ; 

 with the central process longer in proportion, with only a rudiment 

 of the small point of the concave surface, and the posterior and 

 inner cutting edge larger and sharper. The sixth tooth is the largest : 

 the heel of the anterior tubercle is more strongly developed, and the 

 outer and central processes are larger and sharper than in the other 

 teeth ; the posterior interior cutting edge is very sharp, and there is 

 scarcely a trace of the additional point. The seventh tooth is also 

 triangular in its form, but with its longest axis placed cross-wise, 

 with an obtuse anterior interior tubercle, another posterior one, and 

 a third rather sharper than those in the centre, with a sharp elevated 

 ridge extending across to the most acute angle at the outer side, 

 uniting the central with a fourth tubercle at the outer angle. 



With regard to the placing of the teeth in the jaw : the sockets of 

 the four incisors on each side are close together, but between those 

 of the two central incisors there is an interval of about ^-th of an 

 inch, indicating a corresponding gap between the teeth. Between 

 the incisors and canines there is the pit in the intermaxillary bones 

 already mentioned. The first molar is almost close to the canine of 

 its side ; the second molar is separated by an interval of / 5 ths of an 

 inch nearly, from the first ; the third molar is rather more than ^th 

 of an inch from the second, and it adjoins the fourth, forming with 

 it, the fifth and the sixth, a continuous series of four teeth, from 

 which the seventh is separated by about ^th of an inch. 



Inferior maxilla — canines strong, much curved, approximating 

 at the base, then proceeding outward, with the points turned back- 

 ward, and rather inward ; placed close to the incisors, which appear 

 jammed between them ; and the points not going on the outside of 

 the intermaxillary bones when the jaws are shut, but received into 

 the fossa in those bones, between the upper iucisor and canine teeth. 

 Cheek-teeth gradually increasing in size to the third, than which 

 the fourth is rather smaller ; and again, from the fourth to the last, 

 which is the largest of all : first, second, and third, like those in the 

 upper jaw : fourth, fifth, sixth, and seventh tricuspid, with an acute 

 angular point in front, a very elevated sharp process, with cutting 

 edges in the centre, and a tuberculous process behind. This last 

 4 B 



