262 MAE8T7PIA.LIA. 



The following specimen is the type of T. occisor, Owen, but apparently 

 presents no characters by which it can be distinguished specifically 

 from the preceding specimens. 



47782. The imperfect mandible of a subadult individual, showing 

 (Fig.) nearly all the teeth. Figured by Owen, op. cit. pi. iv. 

 figs. 2, 2 ; pm. 4 is not fully protruded from its alveolus, 

 and the anterior lobe of the left iZl is aborted. 



Same history. 



The following specimens not improbably belong to this species. 



47772. Fragment of the right ramus of the mandible, showing pm . 4 

 (Fig.) and m. 1. Figured by Owen, op. cit. pi. iii. fig. 21. 



Same history. 



47773. The greater part of the right ramus of the mandible with 

 (Fig.) one imperfect cheek-tooth. Figured by Owen, op. cit. pi. iv. 



fig. 4. Same history. 



47774. Part of a mandibular ramus of an old individual, containing 

 (Fig.) an entire premolar and a worn true molar. Figured by 



Owen, op. cit. pi. iii. figs. 14, 14 a. Same history. 



47774 a. The greater part of the right ramus of the mandible, with 

 the teeth in a crushed coudition. Same history. 



47788. Fragment of a maxilla, showing the canine, two premolars, 

 and what is apparently part of m. 1. Same history. 



48404 a. A fourth premolar. Same history. 



Triconodon major, Owen 1 . 



This species is estimated to have been fully one-third larger than 

 T. ferox, and about equal in size to the existing Dasyurm viverrinus. 

 Hab. Europe (England). 



40722. Part of the right ramus of the mandible, containing the 

 (Fig.) slightly imperfect i7T~2 and portions of the anterior cheek- 

 teeth ; from the Middle Purbeck group of Durdlestone 

 Bay, Swanage, Dorsetshire. This specimen, which is the 

 type and only known example, is figured by Owen in his 

 ' Mesozoic Mammalia,' pi. iv. fig. 3. 



Beckles Collection. Purchased, 1876. 



1 Mesozoic Mammalia (Mon. Pal. Soc.), p. 70 (1871). 



