16 MAMMALIA. 



the Norwich Cra of Thorpe, and it has been given by other 

 writers on this authority ; but a careful search through Mr. Fitch's 

 collection of Norwich Crag fossils has failed to bring to light any 

 specimen which could be taken as representing the genus Ursus. 



So far as I have been able to ascertain, all other notices of the 

 genus Ursus occurring in the Crag rest upon the authorities above 

 noticed. 



URSUS AKVERNENSIS ? CROIZET & JOBERT. 

 PLATE I., FIG. 12, a, b. 



There is in the Reed collection, York Museum, a molar tooth 

 from the Red Crag Nodule-bed of VVoodbridge, which Prof. Boyd 

 Dawkins thought might belong to Ursus arvernensis. This is a 

 left lower second molar, and is smaller than the corresponding 

 tooth of U. arvernensis with which I have been able to compare 

 it, but agrees very closely in form. The upper surface is un- 

 worn, and the tubercles and wrinkles are not strongly marked. 

 The length of the crown is 20 mm., the width 12 mm., and the 

 height 6 mm. The fangs are much broken. This specimen, so far 

 as I am aware, is the only one which can be taken as possible evi- 

 dence for the occurrence of U. arvernensis in the English Crags, or 

 indeed in England, and this does not seem to me to be altogether 

 free from doubt. The tooth referred to U. arvernensis by Prof. 

 Lankester is not now regarded as such (see p. 15), and no 

 specimens are known from the Cromer Forest-bed (see Vert. 

 Forest Bed, pp. 9 and 16, 1882). 



In France this species occurs in the Auvergne Pliocenes ; and 

 it may be that the U. minutus from Montpellier (Gerv., Pal. 

 Franc., Edit. 2, p. 206, Plate viii., fig. 1), may belong; to the 

 same species. Gervais (Pal. General, p. 150, 1867-69) seemed 

 to think that his specimen might belong to Hy&narctos, and 

 certainly our specimen from the Red Crag is not very unlike the 

 teeth figured by Koken (Sitzb. Ges. Naturf. Freunde, Berlin, 

 Nr. 3, 1888, p. 45) as Hycenarctos minutus. 



URSUS HORRIBILIS 1 ORD. 

 (= URSUS FEROX-FOSSILIS, BUSK.) 



(Grizzly Sear.) 

 (Vett. Forest Bed, p. 12, No. 10. PLA.TE I., FIG. 5, 5a.) 



One specimen, a maxilla with two teeth, from the Forest-bed 

 of Mundesley, has been doubtfully referred to this form ; but 

 otherwise the species has not been recognised in any Pliocene 



