94 



ANTHROPOID APES. 



Trincliese in the Annali del Museo civico di Storia 

 Naturale di Oenova (1870). The tip of the helix is 

 pointed in very young individuals of the gibbon 



species, especially in 



Eyhhates Lar. Among 



the lower apes the 



pointed ear is very 



S^^^ H^ - ^iLiJllJ i yj Hr common (see Fig. 29). 



V(l^ ^Bl^^I^^E The eyelids of an- 



*< Hm ^SP^'^' ■hR thropoids greatly re- 



\ ■ In j^^^fi^^'-iJmHBM semble those of man in 



their structure. In adult 

 gorillas and chimpan- 

 zees there is always a 

 semilunar fold {plica 

 semilunaris) correspond- 

 ing to the membrana 

 nictitans, or third eyelid 

 of birds. In man there 

 exists, instead of this, only a rudimentary apparatus, 

 the earuncula laehrymalis. In some individuals it 

 attains to a considerable size, as I have observed in 

 the fellaheen, Berbers, Shillook, and other tribes. 

 On the other hand, the conversion of the earuncula 

 into a true, although only rudimentary, jilica semi- 

 lunaris has not been observed by me in the human 

 eye. Miklucho-Maclay describes the earuncula 

 in Melanesians (the Papuans of New Guinea), in 

 the Orang-Sakay (of the Malay peninsula), and in 

 the Mikronesians (of the island of Japan and of the 

 Palau archipelago), as two or three times as wide 

 as that of the average European.* 



* Report oj Anthropological Society, Berlin, March 9, 1878; 



Fig. 29. — Magot (^Innuus ecaudatus). 



