118 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.58. 



In this muck nothing was found except fragments of buti'alo bones. 

 The remains of extinct animals were all found in the sandy and 

 gravelly layers. In Professor Holmes's report (pi. v) is shown a 

 section of the excavation and the distribution of the teeth and bones. 

 On account of the incoming water the work of excavating was 

 troublesome. As a result of this perhaps the depths at which the 

 various specimens were secured was not recorded, except in a few 

 cases. 



The writer has had the opportunity of studying this collection 

 and has identified the following species : 



\Equus comjMcatus. Alces amedcanus. 



\E. laurentius. \Symhos i^ro^iiytus^ new species. 



\E. excelsus. ]Bison, sp. indet. 



\E. hatcheri. Bison bison. 



\E. holmesi, new species. \Mani')nut americanum. 



\Camelo'ps kansanusf \Ele'phas columM. 



\G. nitidus, new species. ^E. imperator. 



Odocoileus virginianus. \Gastoroides oMoensis. 



Cervus canadensis. Ganis nubilus. 



\GervalGes roosevelti? G. latrans. 



The writer does not believe in Professor Holmes's theory (his re- 

 port, p. 243) that these bones and teeth had been gathered up in the 

 surrounding country by Indians and thrown into the spring as of- 

 ferings to the spirits. His section just referred to confutes this 

 view. The species mentioned and most of the others must originally 

 have been left in tlie deposit not far from the spring. The horses 

 and camels and the imperial elephant belong to the fauna of the first 

 interglacial stage, the Aftonian. Some of the other species are 

 known to have existed at the same time and all of them may have 

 existed then. Some of these species certainly may have been buried 

 there at a later time. Certainly too, that bed of muck, 2 feet or more 

 in thickness, had not accumulated there within a short time, and it 

 was almost barren of fossils. It v/ill be observed that 14 out of the 

 20 species represented are now extinct. The writer has elsewhere 

 discussed the discovery at Afton.^ 



Family EQUIDAE. 



EQUUS COMPLICATUS Leidy. 



Plate 7, fig. 1. 

 Of this species there are identified three large second upper pre- 

 molars (Cat. No. 9098) , an upper left milk molar (Cat. No. 9099), and 



» Amer. Anthropologist, vol. 20, 1918, pp. 21-23. 



