143 



594. The posterior extremity of a shed molar of a Mammoth with the crown 

 worn down to the common dentinal base and the fang removed by 

 absorption. 



From the fresh-water pleistocene beds of Grays, Essex. 



Presented by IVickham Flower, Esq., F. G.S. 



595. One of the slender elongated anterior fangs of a much-worn molar of a 

 Mammoth. 



Locality unrecorded. Hunterian. 



Varieties. 



596. An upper molar of a Mammoth. The grinding surface, which is five 

 inches and a half in length, exhibits the summits of nine transverse 

 plates ; but of these only the two anterior ones have the apical mammillae 

 worn down into a continuous transverse depression. In the four suc- 

 ceeding plates three nearly equal mammillae are abraded ; in the antepe- 

 nultimate plate the abraded apices of four mammillary processes are seen, 

 two of which belong to the middle process ; in the penultimate plate five 

 mammillae are shown. The contrast between this and the molar tooth in 

 No. 620, which in an antero-posterior extent of five inches of the 

 working surface of the crown displays thirteen plates, is very remarkable. 



From British drift or pleistocene beds. Mus. Parkinson. 



597- A portion of an upper molar of a Mammoth, including three lamellar divi- 

 sions of the crown in an antero-posterior extent of two inches, its breadth 

 being three inches. The abraded surface of the plates presents a slight 

 but gradual expansion from the ends to the middle ; and the enamel is 

 much thinner than in the foregoing specimen. 



From British drift or pleistocene beds. Mus. Parkinson. 



598. A portion of an upper molar of a Mammoth, having similar characters 

 to those of the preceding specimen. The external cement is of great 

 thickness. 



From drift or pleistocene beds in Staffordshire. Mus. Parkinson. 



599. The lower molar of a Mammoth which had recently cut the gum. The 

 grinding surface, which is four inches in length, presents eight plates ; 

 the two anterior ones show the worn summits of two mammillary divi- 



