492 Dr. Fonyth Major— Extinct Primates of Madagascar. 



inframaxillaries is formed by the splenials. It is these latter 

 which contribute principally to the formation of the symphysis, 

 at least externally. Indeed, they are so strongly united as to form 

 a process on their posterior margin. 



The angulary is not preserved here, but it is present in Eypero- 

 dapedon minor, ^ in which a portion of the coronoid bone seems to be 

 also partly preserved. In the latter species the position of the 

 opercular can be made out with tolerable clearness. It reaches to 

 about the middle of the inferior ridge of the lower jaw. 



The remains of the hyoidal bones have already been referred to by 

 Huxley. 



( To be continued. ) 



III. — A Summary of our Present Knowledge of Extinct 

 Primates from Madagascar. 



By C. I. Forsyth Major, M.D., F.Z.S. 



ALTHOUGH the present summary covers the same ground 

 reviewed only a few months ago by the junior bearer of the 

 name which will always be gratefully and prominently remembered 

 in connection with the scientific conquest of Madagascar,^ the 

 following lines will show that, short as the interval has been, the 

 new additions are not unimportant. 



If it might be regretted that many of the new facts are being 

 served out, as it were, by driblets, this in most cases is scarcely 

 to be avoided, as many of the specimens on which the evidence 

 rests are very fragmentary, and besides dispersed in various 

 Museums. In the case of more complete materials, the preparation 

 for publication requires, for obvious reasons, a longer time, so that 

 the provisional sifting of the material may not be out of place, were 

 it only to keep as much as possible within reasonable limits the 

 often unavoidable increase of synonymy. 



As far as the remains recorded by M. G. Grandidier^ are con- 

 cerned, mention is made in the present notice only of those about 

 which I have something new to say. 



I. MEG AL AD APIS. 



At the December meeting of the Zoological Society ^ I briefly 

 noticed under the name of Megaladapis insignis a new species of this 

 genus, based on fragments of the upper and lower jaw, which 

 I have fully described in another place.* The Geological Depart- 

 ment of the British Museum has since acquired the anterior portion 

 of another skull of the same species, probably 9> which shows that 

 in the adult condition, at any rate, this animal was devoid of upper 



1 I wish to give this name to a fragment mentioned by Huxley, Q.J.G.S., 1859, 

 p. 146, and specifically different from IT. Gordoui. 



2 Guillaume Grandidier, " Sur les Lemuriens subfossiles de Madagascar": 

 €. R. Ac. Sci. Paris, 28 Mai, 1900. 



^ Proc. Zool. Soc. London, 1899, p. 988. 



* "Extinct Mammalia from Madagascar. I. Megaladapis insignis, sp.n. " : 

 Phil. Trans. Eoy. Soc. London, vol. cxciii (1900), p. 47. 



