84 MR. G. BUSK ON THE ANCIENT OR 
2,.As regards the dental distinctions between the Northern and Southern Lynx, we 
have to remark (a) that in 7. dyna the teeth generally are larger, though of the same 
proportionate width, and (4) that the upper tubercular molar is very much larger, and 
triradiate (the middle root very small). 
3. The lower carnassial is furnished with an additional small cusp behind’, which is 
wanting, not only in F. pardina, but, so far as I am aware, in almost all other felines. 
The only cases in which I have noticed any thing of the kind is in /. picta (Leopardus 
pictus, Gray) (No. 14954 B. M.), from South Africa, and in F. viverrinus, Gray. 
4, The pm. 3 is broader or squarer behind in J. /yna, whilst it tapers almost to a 
point in F. pardina, and the teeth generally are wider posteriorly. 
3. Fenis cAtieata, Temminck, 
A third species of Felis, of smaller size than the Lynx, is represented by :— 
1, An entire left mandible, with all the teeth except the incisors, 
A fragment of a second left mandible retaining the carnassial tooth only. 
An entire right humerus. 
The distal end of the left humerus. 
The proximal end of apparently the corresponding ulna. 
The distal half of the right tibia. 
Two metatarsal bones. 
ple SOO OS) 
1. The entire mandible (Pl. III. fig. 6) measures 2”°8 from the incisor border to the 
condyle, and about the same to the extremity of the crochet. The coronoid process 
rises to the height of 1’°2; and the height of the ramus at the second tooth is 0d. 
The condyle is 0’°6 in length, and is rather slenderer than it appears in the figure, its 
greatest thickness being about 0°15. The length of the three molars is 095, and of 
the diasteme about 0°’26. The dimensions and proportional sizes of the teeth are 
shown in the odontogram No. 16. 
This beautiful specimen was extracted from a very hard ferruginous matrix. ‘The 
bone is very dense, and almost black from manganesic infiltration, so that there can be 
no doubt that the animal belonged to the most ancient fauna of the rock. The 
teeth, with the exception of the carnassial (m. 1), which has lost the hinder cusp (by 
recent fracture), are nearly entire, the small anterior and posterior cusps in pm. 3 
and pm. 4 haying been either worn or broken off. 
The canine, which is greatly worn behind, has a simple deep groove on the outer side ; 


the Hunterian Collection, is named 7’, Zyna in the Catalogue, though there can be no doubt of its belonging to 
“the Persian Lynx,” F. caracal, and not to the true Lynx. But in a skull of a large Caracal from the Zoolo- 
gical Society’s Collection, No. 981 ¢, B. M., a single fissure is obscurely evident on the outer side of the canines. 
1 The absence of this cusp in the Canadian Lynx is referred to by Messrs. Dawkins and Sanford. 
