Holland : Pleistocene Fauna at Frankstown, Pa. 231 



sented by the third and fourth left lower premolars of a small species 

 about the size of Tapirus americanus Brisson. The Suidce are repre- 

 sented by the remains of a number of peccaries. A remarkably 

 well-preserved mandible I determine to be that of Dicotyles penn- 

 sylvanicus Leidy, the type of which is the fragment of a mandible of 

 an immature specimen, which was found in Hartman's Cave near 

 Stroudsburg, Pa. Our specimen is the lower mandible of an adult, 

 accompanied by other portions of the skeleton, including well-pre- 

 served metapodials and vertebrae. The animal was, judging from what 

 we possess, considerably larger than either of the existing peccaries. 

 The lower jaw is longer than in either Dicotyles labiatus or torquatus, 

 and the metapodials are longer. The canine teeth, which are wanting 

 in Professor Leidy' s type, are also much longer and more formidable 

 weapons than in either of the existing species of the genus. Another 

 peculiarity is the fact that the jaw at its inner angle flares outwardly, 

 whereas the existing species of Dicotyles are characterized by the 

 recession of the lower jaw at the angle. The species might well be 

 referred to the genus Platygonus, in which, however, it has not been 

 placed by Hay in his Catalogue. Lydekker regards Platygonus as 

 practically synonymous with Dicotyles or Tayassu, but the distinction 

 between the two genera the writer believes to be valid. Portions of 

 a skeleton referable to Bison were uncovered. The Cervidoz are repre- 

 sented by three species, one of them of very large size, possibly repre- 

 senting Cervalces, the other two smaller. There has not been time to 

 carefully decide the generic location of these species, which are prin- 

 cipally represented by the teeth of the lower jaws. A fragment 

 of an antler, possibly belonging to Cariacus virginianus, was dis- 

 covered. The remains of mastodons w r ere exceedingly plentiful. 

 Mastodon americanus is represented by portions of one mature and five 

 or six immature specimens. The remains of rodents are very numer- 

 ous. Numerous jaws of Erythizon, Lepus, Sciurus, Fiber, and other 

 smaller genera are recognizable. Chiroptera are present in the 

 remains Of one or more species. The Ursidce are represented by two 

 species. Fragments which are no doubt correctly referable to Ursus 

 americanus were found, but far more interesting are the remains of 

 several individuals of a huge bear which I identify without any hesita- 

 tion as Arctodus haplodon Cope. The presence of the entepicondylar 

 foramen in the humerus, the two masseteric fossae of the mandible 

 and the peculiar shape of the first inferior true molar are characters 



