4 PLEISTOCENE MAMMALIA. 



fig. 3), which enables us to complete the illustration of the part missing from tbe Bleadon 

 jaw was obtained from the brick-earth of Crayford, in the Thames Valley, and is now in 

 the possession of Dr. Spurrell, to whose kindness we are much indebted for the loan of 

 the specimen. It was found in association with the tichorhine, leptorhine (Owen), and 

 megarhine Rhinoceros, Meplias antiquus and E. primic/enius, horse, red deer, bison, &c. It 

 probably belongs to the smaller variety. 



A reference to the table of dimensions will show that the measurement of this bone are 

 not greater than those of the lion and tiger. 



A second specimen from the same locality gives the extent of the alveolar border 

 occupied by the teeth at 320 inches, while PM3 = 0*73 X 0-41 X 0-39, PM4 = VV2 

 X 0-56 X 0-66, and Ml = 115 X 0-51. 



A third mutilated ramus from the brick-earth at Ilford, in the possession of Mr. Brady, 

 has a circumference anterior to premolar three of 4 90 inches. * 



A jaw of the large form was found at Fisherton by Dr. Blackmore, and others exist in 

 different parts of the country. 



Messrs. Schmerling, Marcel de Serres, Dubrueil, and Jean-Jean describe under the name 

 of Felis leo, and Messrs. Croizet and Jobert under the name of F. antiqua, various bones 

 of large Feles found in the caves of Belgium and France, and in the Pleistocene deposits of 

 the latter country, and consider them as distinct from Fells spelaa. 



We have no doubt as to the correctness of the four first-named authors in their deter- 

 mination of these bones as those of Felis leo, confirmed as it is by the remains of that 

 animal in the Taunton Museum, from Sandford Hill and Bleadon. We have endeavoured 

 to show, by our analysis of the jaws of Felis spelaa, that, as far as indications afforded by 

 this part of the animal are concerned, the latter is simply an extreme variation of the 

 former, and that the differences between it and the lion are not specific, or, in other words, 

 greater than those that occur in recent varieties of the existing lion. 



