DEVONIAN FAUNAS. 341 
DESCRIPTIONS OF SPECIES IN THE MIDDLE AND UPPER 
ORISKANY FAUNAS. 
COELENTERATA. 
ANTHOZOA. 
TRACHYPORA ORISKANIA N. Sp. 
Plate XLV., Figs. 1-2. 
Description.—Corallum dendroid, with cylindrical branches 6 to 
8 mm. in diameter; corallites essentially polygonal in outline, more 
or less irregularly arranged, from 1 to 2 mm. in diameter, with walls 
thickened toward their mouths, so that the actual aperture is much 
smaller and subcircular in outline, being somewhat depressed below 
the polygonal margin. The outer surface of the thickened walls of 
the corallites is marked by twelve to fourteen broad, rounded, radi- 
ating ridges, separated by sharp, narrow grooves. 
Remarks.—This is the oldest recognized member of the genus 
Trachypora, other species being of middle Devonian age. The 
species may be distinguished by its more conspicuously polygonal 
corallites, the central circular aperture being much depressed below 
the polygonal margin. 
FAVOSITES sp. undet. 
Near Flatbrookville a specimen of Favosites has been collected from 
the calcareous Oriskany beds. It is too poorly preserved to exhibit 
specific characters, but it somewhat resembles masses of the Helder- 
bergian species F’. helderbergie, but seems to have somewhat smaller 
corallites. 
