792 



SCIENCE. 



[N. S. Vol. III. No. 74. 



from the glabella backward irregularly to 

 tlie occiput, which it divides somewhat be- 

 low the upper nuchal line. The cranium 

 seen from above is an elongated oval in 



guished from that of other anthropoid apes 

 by its large size and its higher arching in 

 the coronal region, as shown below in figures 

 adult, but not veiy old, animal. The crown 



Fig. 1. — Longitudinal outlines of crania. H. European man ; P. Pithecantltropus ; Ha. Mylobates 

 agilis; A. Chimpanzee ; Hs. Hpio- bates syndacHilus. (After Dubois. ) 



1 and 2. The gi-eatest length from the 

 glabella to the posterior projection of the 

 occiput is 185 °"°. The greatest bi-eadth is 

 ISO"", and the smallest, behind the orbit, 

 is 90°"". The ci-anium in its original con- 

 dition must have been of somewhat larger 

 dimensions. The upper surface of the skull 

 is without ridges, and the sutures all ap- 

 pear to be obliterated. 



This dolicocephalic skull, with an index 

 of 70°, is readily distinguished from that of 

 the Orang-utan, which is decidedly brachy- 

 cephalic. The absence of the characteristic 

 cranial crests will separate it from the skull 

 of the adult Gorilla. In its smooth upper 

 surface and general form, it shows a re- 

 semblance to the skull of the Chimpanzee, 

 and still closer to that of the Gibbons 

 (^Hylobates) . 



A figure of the present specimen and 

 the skull of a Gibbon for comparison are 

 shown in figures 2 and 3, below, reproduced 

 from illustrations in Dr. Dubois's memoir. 



The tooth, the first specimen found, is 

 represented in figure 4, below. It is the 

 last upper molar of the right side, and is in 

 good preservation. It indicates a fully 

 outline, dolichocephalic; and is distin- 



is subtriangular in form, with the corners 

 rounded, and the narrowest portion behind. 

 The anteroposterior diameter of the crown 



Fig. 2. — Cranium of PUJiecanthropus erectus, J. 

 Fig. 3.— Skull of Hyldbatea syndndylus, J. (After 

 Dubois. ) 



is 11 •3""°, and the transverse diameter 

 15'3'""'. The grinding surface of the crown 

 is concave and less rugose than in existing 

 anthropoid apes. The diverging roots are 

 a simian feature. 



The femur, which is fi"om the left side, is 

 in fair preservation, although it was some- 

 what injured in removing it from the sur- 

 rounding rock. It belonged to a fully adult 

 individual. In form and dimensions it 

 resembles so strongly a human femur that 



