26 



137- The penultimate molar, left side, upper jaw, of the Cave Hyaena. 

 From Kirby Moorside. 



Presented by John Gibson, Esq., F.G.S. 



138. A considerable portion of the opposite molar of the same species, from 



the same locality. 



Presented by John Gibso?i, Esq., F.G.S. 



139. The first molar tooth of the right ramus of a lower jaw of a Cave 



Hyaena. 



From Kirby Moorside. 



Presented by John Gibson, Esq., F.G.S. 



140. A portion of the left ramus of the lower jaw, containing the first molar 

 tooth of the Cave Hyaena. 



From Kirby Moorside. 



Presented by John Gibson, Esq., F.G.S. 



141. The corresponding molar tooth of a larger and older individual of the same 



species, and from the same locality. 



Presented by Johfi Gibson, Esq., F.G.S. 



142. The second molar tooth, right side, lower jaw, of a large Cave Hyaena ; 



the upper half of the crown is worn away, and the fangs are solidified. 

 From Oreston. Presented by Sir John Barrow, F.R.S. 



143. The corresponding tooth of the opposite side of the lower jaw, similarly 



worn. 



From Oreston. Presented by Sir John Barrow, F.R.S. 



144. A corresponding tooth of the same species of Hyaena, from the same 



locality. 



In all these second molars the fangs are impressed with a longi- 

 tudinal groove on their inner side. 



Presented by Sir John Barrow, F.R.S. 



145. The crown of the second molar tooth, right side, lower jaw, of a youn^; 



Cave Hyaena ; the formation of the fangs has only commenced. 



From Oreston. Presented by Sir John Barroiv, F.R.S. 



