3o8 
A ug, F . Foerste 
three horizons, in the upper part of the Whitewater bed, in the 
upper part of the Waynesville bed, and near the middle of the 
Arnheim bed, it is probable that the type of Streptelasma divari- 
cans came from the Whitewater. Streptelasma divaricans is 
very common in the Whitewater bed in Ohio and Indiana, and 
occurs in Ohio, Indiana, and Kentucky in the Liberty bed, but 
Rhynchotrema dentata is very rare in the Liberty bed. A small 
sessile form of Streptelasma occurs in the upper or Blanchester 
division of the Waynesille bed at Versailles, Indiana, but it is 
rare at this horizon. In the Liberty bed Streptelasma divaricans 
it is. found as far south as Bardstown, Kentucky. The most 
southern locality on the eastern side of the Cincinnati geanticline 
is at the Hornback curve, two miles west of Indian Fields, in 
Clark county. The horizon here appears to be a considerable 
distance above the base of the Liberty bed but the presence of the 
Whitewater bed has not been demonstrated as yet. 
In the lower part of the Whitewater bed, a mile and a half 
southeast of Westport, Indiana, on the east side of Painter creek, a 
specimen of Rafinesquina was found to which 3 separate speci- 
mens of Streptelasma divaricans were attached, in each case so 
that all of one side was adnate to the shell. This appears to be 
only an extreme case of the oblique attachment often seen in 
specimens unequivocally identical with Streptelasma divaricans. 
Streptelasma divaricans-angustatum, var. nov. 
{Plate IX, Fig. 6, A, B.) 
Several specimens of Streptelasma divaricans have been found 
in the Whitewater bed at Osgood, Indiana, which differ from the 
more typical examples of that species in having the sides less 
divergent. The form of the individual corals, therefore, is more > 
nearly cylindrical. It appears to be a rare variant. 
Protarea richmondensis, Foerste. 
{Plate VII, Fig. 8.) 
The type of this species, here figured, is characterized by the ■: 
presence of 12 distinct septa. It was found in the Whitewater \ 
beds, at Tate’s hill, east of Dayton, Ohio. This form occurs at j 
the same horizon at numerous localities in Ohio and Indiana, 
