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found in the forest-bed, and also dredged from the post glacial 
deposits. 
U. priscus (Goldfuss). — Ursus prisons was a smaller species than 
Ursus spelasua. The chief difference between Ursus priscus and 
Ursus spelaius, is the presence of two false molars in the upper jaw 
of Ursus priscus, which are entirely wanting in Ursus spclceus. 
The species is found in the forest-bed. 
Genus FELIS. 
Maciiairodus latidens (Kaup). — This species is one of the most 
remarkable fossil forms of Carnivora that has yet been discovered 
in Pleistocene deposits. It takes its name from the long, curved, 
compressed canines which armed the upper jaw. The edges of 
these canine teeth were finely serrated, and more resemble the 
teeth of tho extinct reptile Megalosaurns than any known car- 
nivorous mammal. The shape of the skull best accords with that 
of the pantlior, than any other existing Carnivore. 
The only Norfolk specimen that I have seen is in the collection 
of Mr. Jarvis, of Cromer. The specimen is a canine tooth, and 
was picked up on the beach at Cromer. It is probably from the 
forest-bed. 
Order EODENTIA. 
Genus TROGONTIIERIU.M Fischer. 
Trogontuerium cuvieri (Fischer). — This species, which exceeded 
in size the largest specimens of the European beaver known, differs 
from Castor europmis in the following points. 
Tho last molar in the upper jaw is longer, instead of being 
shorter, than the other molars, as is the case in Castor europmis. 
The antero-posterior and transverse diameters of the first molar 
exceed by one-third those of the second ; the second and third 
molars are smaller in proportion to the incisor, than in Castor. 
Trogontherium cuvieri is frequent in the forest-bed. 
Genus ARVICOLA. 
Arvioola ampiiibius (Owen). — This fossil species of water-rat 
differs from the existing species, principally from the fact that the 
bones are a little smaller in the fossil species ; the jaws and teeth 
agree in size as well as in other characters. 
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