408 



PR0C:t2EDINGS OF IHE GEOLOGICAL SOCIETY. [May 10, 



on the fang much more obliquely, and by the obtusely pointed apex 

 rising abruptly from the anterior border instead of sweeping nearly 

 equally upwards from the posterior and anterior borders. The pre- 

 molar series of the Glutton may be separated from that of the Canidse 

 and Felidae by the great transverse thickness of its teeth, and the ab- 

 sence of the anterior and posterior accessory cusps. The first lower 

 true molar is distinguished at once from that of the Canidse by the 

 stoutness and obtuseness of the two sectorial blades, and by the 

 non-development of a cusp on the postero-inner edge of the base 

 of the posterior blade. The tubercular portion also of the Glutton 

 is much smaller and more talon-like (consisting of a very obtuse 

 triangular cusp) than in any of the Canidse. With these excep- 

 tions, I do not know of the teeth of any carnivore with which those 

 of the (jluttou under consideration can be confounded. 



The following Table shows the relation of the lower jaw of the 

 Glutton from Plas Heaton to those found in the eaves of Germany, 

 and to a recent specimen preserved in the British Museum. The 

 Welsh fossil in every dimension is larger than any of the rest, and 

 must have belonged to an animal proportionally more robust than 

 any of the others. The measurements are taken in decimals of an 

 inch. 





6 





 > 







<li 



aJ 



t 





s 



(-] 



S 



CS 



ro 





2 



-u 











cJ 





a 



4) 



M 



bD 



^ 





K 



S-i 



■g 



'^ 



SB 





CO 



rS 



n3 



TJ 



S 





c3 





C 



a 



'P 







oj 





3 







S 







CO 



XJl 



i3 



Alveolar space occupied by molar series 













from Pm. 2 to M. 1 



1-95 



1-9 



0-95 

 0-88 



1-85 



0-98 



©•96 



1-86 

 0-95 

 0-95 



1-72 



0-9 



0-85 



Depth of ramus beneath Pm. 2 



Depth of ramus beneath M . 1 



0-96 



0-8 



Length of crown of canine 



0-82 



( Antero-posterior measurement 



c'29 



0-24 



0*24 



0-28 



0'25 



Pm. 2. i Transverse ,, 



0'2 



0-19 



o-i8 



o-i8 



0-15 



[ Height ., i. 



0-2 



0-15 



o*i6 



0-15 



o"i5 



f Antero-posterior measurement 



0*36 



0*36 



o"35 



0-3S 



0-34 



Pm. 3. -l Transverse „ 



0'24 



023 



0'2I 



0"2 



0'2 



1 Height 



0-24 



o'5 



0'23 



0-5 



0'2I 



0*22 



0'2 



r Antero-posterior measurement 



0-5 



0-45 



0-49 



Pm. 4. 1 Transverse ,, 



0-3 



029 



0-26 



0*29 



0-25 



[ Height 



0-3 

 0-95 



0'29 



0-92 



0-29 



0-88 



c'28 



0'26 



f Antero-posterior measurement 



c-9 



0-82 



M. 1. \ Transverse „ 



©•42 



0-4 



0-38 



0-4 



0-34 



[Height 



0*42 



0-4 



0-4 



0-4 



0-36+ 





I am able to detect ho specific diff'erence between the Quio spelceus 

 of Goldfuss, from Germany, and the living form, Gulo lusais of Lin- 

 naeus. The fossil carnivore was larger than the living, probably 

 because in pleistocene times the competition for life was not so keen 

 as it is now among the mammalia. Man in these early times had 



