CHARACTERISTICS OF THE EXTERNAL EAR 209 



The posterior awicular sulcus: The sulcus turns into the con- 

 cha in the negro men, out over the hehx or lobule in the white 

 men, and in the Filipino men it does both. The negro and 

 Filipino women are like the white men in this respect. 



Tragus and antitragus: The negro men's ears have depressed 

 or intermediate antitragus and tragus, and the white men's 

 ears have prominent ones, in which the ears of the Filipino men 

 and women and the negro women resemble the white men. 



Asyynmetrij: (8) The ears of the negro men are asymmetrical 

 in 33.3 per cent, and asymmetrical in 66.7 per cent; the ears of 

 the negro women are asymmetrical in 30.0 per cent, and sym;- 

 metrical in 70 per cent, and the ears of the white men are asym- 

 metrical in 25 per cent and symmetrical in 75 per cent. This does 

 not include slight differences, but only such as an oval ear on 

 one side and a pentagonoid ear on the other, or the absence of 

 lobule on one side and its presence on the other, etc. The ears 

 of the two sides are almost invariably asymmetrical in a shghtly 

 different arrangement of the skin lines, different curves of the 

 helix, depths of the concha, etc. 



Resume: The details of the ears of the negro and white are 

 different as follows: The negro ears are glabrous, the white ears 

 are hirsute; the satyr tubercle is large in the negro ear, small 

 in the white; Darwin's tubercle is more difficult to find in the 

 negro ear than in the white ; the skin lines converge about Darwin's 

 tubercle in the negro ear, and between Darwin's tubercle and the 

 satyr tubercle in the white; the helix is broad in the negro ear, 

 narrow in the white; the anthelix is more prominent in the white 

 ear than in the negro; the posterior auricular sulcus is deeper in 

 the negro ear than in the white, and in the negro ear the sulcus 

 dips into the concha, whereas in the white it turns out over the 

 helix or lobule. Also in the white ear the helix and lobule are 

 turned towards the head and are not prominent, and the tragus 

 and antitragus are turned away from the head and are prominent, 

 whereas in the negro the reverse is true. The white ear is also 

 more symmetrical than the negro, and the negro ear is involuted, 

 whereas the white ear is not. All of these characters are mixed 



THE AMERICA!* JOURNAL OF ANATOMY, VOL. 18, NO. 2 



