226 
PALEONTOLOGY OF NEW YORK. 
0. Nevadensis, Meek . . Carboniferous. 
* 0. Pecosi, Marcou . Coal Measures. 
* 0. Penniana, Derby . Carboniferous. 
SCHIZOPHORIA, King. 1850. 
XII. Group of Orthis resupinata, Martin. 
* 0. senecta, 
sp. nov. 
. Clinton. 
* 0. multistriata, 
Hall. 
. Lower Helderberg. 
[?] 0. peduncularis, 
Hall. 
. Lower Helderberg. 
# 0. propinqua, 
Hall. 
. Corniferous. 
* 0. Macfarlanii, 
Meek.. 
. Upper Devonian. 
* 0. Tulliensis, 
Hall . 
. Tully. 
* 0. Iowensis, 
Hall . 
. Chemung. 
* 0. carinata, 
Hall. 
. Chemung. 
* 0. impressa, 
Hall. 
. Chemung. 
* 0. Tioga, 
Hall. 
. Chemung. 
* 0. Swallovi, 
Hall. 
. Burlington. 
* 0. resupinata, 
Martin . 
. Lower Carboniferous. 
* 0. resupinoides, 
Cox. 
. Coal Measures. 
ORTHO TICHIA 
(nom. propos). 
XIII. Group of Orthis (?) Morganiana, !Derby. 
* 0.(?) Morganiana, Derby . Coal Measures. 
ENTELETES, Fischer de Waldheim. 1830. 
XIV. Group of Enteletes Lamarcki, Fischer de Waldheim. 
* Enteletes 
hemiplicatus, Hall 
Coal Measures. 
