G* deeaturensis 
-25- 
Localit lea : Blue Springs* 5 miles below Bainb ridge, and 
Kale’s Landing, 7 miles Below Sainbridge, Flint River, Decatur 
County, Georgia. T, W, Vaughan, Collector. 
Geologic horizon : Upper Oligooene, Bainbridge Chert hori- 
zon. 
T;, r p9 : United States National Museum* 
Besides the lot of specimens referred to the species 
described above three other types or Rinds of Gonioporae occur 
on the Flint River at Blue Springs and Hale’s landing* It is 
impossible with the material at hand to decide whether they are 
distinct species or only varieties or formae of G» deeaturensis. 
However, as it seems very probable that they are only varieties 
they are named and described as such 
