Plate VI 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
CRANIA PERCARINATA Ulrich p 317 
Type, magnified 3 diameters, in collection of Prof. Charles Schu- 
chert, of Yale University. Reproducing markings of tricarinate 
peripheral band of Lophospira (See plate IV of this bulletin). 
Position of figure inverted from that shown in figure 30 on plate 
4H, in volume VIII, of the paleontology of New York. From 
the Economy member of the Eden group, at Covington, Ky. 
CRANIA PARALLELA Ulrich p 319 
Type, magnified 3 diameters, in collection of Prof. Charles 
Schuchert, of Yale University. Reproducing markings of Conu- 
laria. Specimen with margin broken off along upper part of 
figure. Economy member of Eden group, at Covington, Ky. 
CRANIA PARALLELA Ulrich . .p319 
One of the series of types in the collection of Prof. Charles 
Schuchert of Yale University. Specimen not figured heretofore, 
magnified 3 diameters. This specimen reproduces the markings 
of some shell, possibly the interior markings of a brachial valve 
of Plectambonites. In addition to this, the surface is marked 
by numerous short radiating striae, too minute to be reproduced 
in the figure. Economy member, Eden group at Covington, Ky. 
CRANIA SOCIALIS Ulrich p 321 
Type figured by Ulrich, magnified 3 diameters, in the collection 
of Prof. Charles Schuchert of Yale University. Reproducing 
outlines of the columnals of a crinoid stem. From lower half 
of Eden group, in the vicinity of Cincinnati, Ohio. 
TREMATIS PUNCTOSTRIATA Hall p 312 
Upper valve, enlarged 2 diameters (=Fig. 1, on pi. V, of vol. 
XVI, of this bulletin). From the Saltillo member of the Tren- 
ton group, at the type locality, Clifton, Tennessee. 
TREMATIS CRASSIPUNCTATA Ulrich .p311 
Type, magnified 3 diameters, in collection of Prof. Charles 
Schuchert of Yale University. From Fairmount member of 
Maysville group, at Cincinnati, Ohio. 
CYMATONOTA CYLINDRICA Miller and Faber (=C. typi- 
calis Ulrich) p 330 
Type of Orthodesma cylindricum. No. 8801 in the Faber col- 
lection at Chicago University. A, left valve; B, dorsal view, 
showing oblique plications along the hinge-line. Probably 
from the Waynesville member of the Richmond group in War- 
ren county, Ohio. 
RHYTIMYA CYMBULA Miller and Faber (=Rh. mickle- 
boroughi Whitfield) p 338 
Type of Orthodesma cymbula, No. 8814, in the Faber collection 
at Chicago University. Defective at anterior and posterior 
extremities. A, left valve; B, dorsal view. From the Fair- 
mount member of the Maysville group at Cincinnati, Ohio. 
352 
