50 



[Apiul, 



Greatest transverse diameter, at base of posterior demicones, 



<< antero posterior diameter, 



" heigiith of internal anterior demicone, 



«' «« " posterior " 



}3readth of internal demicones, at base, 

 Length of external fangs, . . , . . 



«« internal " ..... 



Posterior : 



Greatest heighth of crown, externally, 



" transverse diameter, .... 



(• antero-posterior diameter, 

 Length of internal demicones, .... 



Liferior molars : 

 Antepenultimate : 

 Greatest heighth of crown, internally, . 



" transverse diameter, .... 



" antero posterior diameter. 



Penultimate : 



Greatest heighth of crown 



«' transverse diameter, . . . , . 

 " antero-posterior diameter, . , , 



Posterior : 



Greatest heighth of crown, ..... 

 " transverse diameter, .... 



'• , antero-posterior diameter, 

 Breadth of lower jaw below penultimate molar, 



.7 



.675 



.375 



.3 



.475 



.4 



.35 



.5 

 .7 

 .8 

 .3 



.375 



.5 



.6 



-4 

 .5 

 .6 



.433 

 .5 

 .65 

 LOS 



Explanal'wn of the Figures. 



All the figures are of the size of nature. 



Fig. 1. Represents an external view of the fragment of the upper jaw of the 

 right side, containing the posterior two molar teeth of Merycoidodon Culbert- 

 sonii. 



Fig. 2. Superior view of the same fra4ment, as fig. 1. 



Fig. 3. Hxternal view of the fragment of the lower jaw on the right side, con- 

 taining the posterior three molar teeth. 



Fig. 4. Internal view of the same fragment as fig. 3. 



Fig. 5. Superior view of the same fragment as fig. 3. 



The Committee on two papers by Dr. Hallowcll, entitled " De- 

 scriptions of two new species of Onychocephalus," and " Notes of the 

 post mortem appearances of a Cynocephalus papion," reported in favour 

 of publication.* 



An amendment to Article IX, Chapter 8, of the By-Laws, altering 

 one of the days of admission of the public from Saturday to Friday, 

 was adopted. 



*These papers will appear in the next number of the Proceedings. 



