312 BUREAU OF AMERICAN ETHNOLOGY [bull. 52 



before its erosion by the winds. No bones of fossil animals were found 

 with the human bones nor have any been discovered in the immediate 

 neighborhood, though from another part of these denuded coast-flats 

 the gardener had extracted a number of parts of a scelidotherium. 



Homo pampseus skull No. 2 {NecocJiea No. 1). — The first specimen 

 in the lot under consideration or, according to Ameghino's enumera- 

 tion, the second example of Homo pampseus, bears the number 5004 

 in theMuseo Nacional at Buenos Aires. It is a piece of the vault of 

 a female skull, consisting of a portion of the forehead and portions of 

 the two parietals (pi. 42). 



The specimen is in the same general condition as the other Necochea 

 skull (No. 5008), the surface being deeply and irregularly eroded. 

 The bones appear somewhat fossilized. On the right side, the parie- 

 tals show dorsally spots of dark-gray calcareous incrustation. 



Obviously this was not a large cranium but the exact size can not 

 be determmed with certainty. The thickness of the bones is rather 

 submedium. 



The bones show externally in two or three places signs of disease. 

 These alterations are somewhat masked by the effects of erosion, but 

 an exammation under a magnifying glass shows plainly proliferation 

 and other changes due to some inflammatory process, probably 

 syphilis. 



Morphologically, the specimen presents a rather low, moderately 

 convex forehead, but the latter character would be less pronounced 

 were the surface of the frontal squama presei-ved. Just posterior to 

 the coronal suture and parallel with it is a perceptible, though shallow, 

 broad depression, which, with the lowness of the squama, may indi- 

 cate a slight Aymara deformation. 



The nasal process is of ordinary feminine form. The glabella is 

 moderate; the supraorbital ridges are small. There is no frontal or 

 sagittal cresi. 



The sutures are obliterated. 



Ventrally, the bones show no special features; the metopic ridge is 

 of moderate dimensions. 



Homo pampseus skull No. 3 {Necochea No. 2). — This is the better 

 preserved of the Necochea skulls. It was found with some long 

 bones and other bones, but these, being damaged and in bad con- 

 dition, were not collected. The specunen bears the number 5008 in 

 the Museo Nacional and is in Ameghino's enumeration the third 

 example of the Homo pampseus. It is a skull of an adult of advanc- 

 ing age. The sex is somewhat doubtful; the lower jaw is quite mas- 

 culine in character, but other parts indicate the female rather than 

 the male. 



The specimen (pis. 43-45) is very defective and has been recon- 

 structed to a considerable extent in mastic. The rebuilding is 



