﻿Vol. 66.] ANNIVEESAEY ADDEESS OF THE PRESIDENT, lxxix 



II. Suborder Lemur oidea : i and c specialized, m primitive. 



Family 1. Lemuridae : i ^', c°, c resembles i, m primitive. 



2. Nycticebidae : { |, c % c incisor-like, m primitive. 



3. Chiromyidae : i \ c J, m quadritubercular. 



4. Archaeolemuridae : i^, c ^, m quadritubercular 



(approach Anthropoidea). 



III. Suborder Anthropoidea : i = normal, c-and m specialized. 



Family 1. Arctopithecidae : pm |m|. 



2. Cebidae : pm |, m |. 



3. Cercopithecidae : pm^, m with opposed tubercles. 



4. Simiidae : pm ^ , m with alternating tubercles, hallux 



opposable. 



5. Hominidae : pm ~, m with alternating tubercles, 



hallux not opposable. 



Schlosser would exclude the Cercopithecidae from the direct 

 succession, on the ground that in Man and the man-like apes the 

 tubercles of the upper molars bite between those of the lower molars, 

 while in the Cercopithecidse they meet in opposition. As Schwalbe 

 points out, a slight difference in the relative length of the lower jaw 

 would suffice to abolish this distinction. 



Schlosser also lays great weight on the resemblance of the 

 ancient Lemurs of Madagascar to the Anthropoids, but Elliot 

 Smith, 1 who has paid special attention to this question, asserts in the 

 most definite manner that he can discover no affinity between the 

 apes and these fossils, and he places Nesopitliecus, Megaladapis, and 

 possibly Chiromys within the fringe of the Indrisinae. He remarks 

 that 



' These leinuroids are the most diversely modified members of the most highly 

 specialized family of the Prosiraiadas . . . they are the furthest removed from 

 . . . the very early and remote ancestor from which both lemurs and apes 

 could have sprung.' 



M. Alsberg and H. Klaatsch ~ find in the primitive character of 



1 ' On the Relationship between Lemurs & Apes ' Nature, May 2, 1907, p. 7. 



2 M. Alsberg, 'Die Abstamraung des Menschen & die Bedingungen seiner 

 Entwickelung ' 1902 (I have not been able to consult this work) ; H. Klaatsch, 

 i Entstehung & Entwickelung des Menschengeschlechtes ' Welt all & Menscheit, 

 vol. ii, 1902. 



