358 Mr. E. R. Lankester on new Mammalia 



a comparison between these and the fossil Cetacea of the Ant- 

 werp Crag, where specimens so much more perfect and intelli- 

 gible are discovered. M. Van Beneden is at present, I believe, 

 engaged in working out the generic and specific relations of the 

 Cetacea of that locality. 



Ursus Arvemensis, Croiz. & Job. 



Professor Owen has already noticed the existence of a form of 

 Ursus in the Red Crag, but has not assigned it to any particular 

 species. The tooth figured in PI. VIII. figs. 1 & 4 is from the 

 collection of Mr. Whincopp, and was obtained, I believe, from a 

 Crag-pit at Newbourn, near Woodbridge. I have very little 

 doubt, after a careful comparison with a cast in the British 

 Museum and De Blainville's beautiful figures, that it is the 

 Ursics Arvernensis of Croizet and Jobert which has thus left the 

 canine tooth of the left side of its upper jaw in the Red Crag of 

 Suffolk. The tooth is remarkable for its small size, its flatness, 

 narrowness, and length, and also for a furrowed appearance 

 produced by slight ridges which run longitudinally down the 

 side of the crown. The anterior margin of the tooth gives indi- 

 cation of a considerable amount of usage, being ground down to 

 a perfectly smooth surface. 



Hyana antiqua, Lankester. 



I am happy to be able to figure another specimen of a molar 

 tooth belonging to this animal, a careful examination of which has 

 fully convinced me of the accuracy of my former determination 

 of its specific value. It is the second premolar tooth of the left 

 ramus of the lower jaw, and presents the same large antero- 

 posterior measurement and shallowness in the crown which 

 characterized the former specimen. Although much worn, and 

 on the inner side somewhat imperfect, the tooth affords sufficient 

 evidence of these facts. The cingulum also is developed to that 

 very moderate extent only which was observed in the tooth from 

 the upper jaw, and was one of the most marked differences be- 

 tween the Hycena antiqua and the Pleistocene H. speUea. (See 

 PI. VIII. figs. 7, 8, and Ann. & Mag. Nat. Hist. January 1864, 

 PI. VIII.) ^ 



Cams primiffenius, n. sp. 



I have given this name, with a certain amount of reserve, to 

 the possessor of the tooth drawn in fig. 11. It may perhaps 

 hereafter be identified with more characteristic teeth, which will 

 enable their discoverer to define the species better than I am at 

 present able to do. 



