INDEX. 
555 
Conocardium reliquum, Sail, 
C. rugosum, 
C. tcgulum, Sail, 
C. trigonale, [Sail ) / 
Crknipecten, Sail, 
C. amplu.s, JTftW, 
C. crenulaitus, Sail , 
C. glaber, fidH, 
C. impolitus, Sail. 
C. Leon, J3dZ2, 
C. liratus, Sail, 
C. micropterus, iTdZZ, 
C. obsolelus, Sail, 
C. Winclielli, (Meek) Sail, 
C. ( Pecten) Winclielli, (Meek) Hall, 
Cucullea opima, Hall, . 
PAGE. 
415 
Cytherodon 
( Schizodus) ellipticus, Hall, 
PAGE. 
. 450 
.415 
G. 
(S. 
) gregarius, Hall, 
. 452 
415 
C. 
(S. 
) nasutus. Hall, 
. 511 
.Miller, . 409,410, 411 
C. 
(S. 
) oblatus, Sail, 
455 
(xii)xvii, 1x1, lxii,31, 81, 90 
c. 
(S. 
) pauper, Hall, 
. 446 
. 81, 83 
0. 
(S. 
) quadrangularis, Sail, 
454, 459 
1x1,81,82, 83,84, 86 
c. 
(S. 
) rhombeus, Hall, . 
. 452 
.85 
c. 
(-S'. 
) tumulus, Hall, 
448 
83 
Dkxiobia, 
xxxvii 
.88 
D. 
ovata. Winchell, .... 
433 
. 86 , 
86 , 
. 83, 
Ixi, 
87 
87 
84 
8 !) 
89 
315 
Dualtna, Barrande, .... xxxvii, 433 
Dystactella , Sail # Whitfield, liv 
D. subnasuta, (Hall & Whitfield) S. A. Miller, liv, 512 
I). teltiniformis, Hall, ... 513 
Echinocaris socialis, Beecher, ..... 478 
Ectenodesma, Sail, .... (xiv) 242 
CUNEAMYA, ...... 
. xxxii 
E. 
birostratum, Sail, 
. 242 
Cyprtcardella, Sail, .... 
XXV, 307 
Edmondia , Ve Koninck, . 
. xxxii, 3S6, 393, 507 
Cypricardia contractu, Hall, . xxxiii, 399, 402 
E. 
depressa. Sail, 
. 391, 393 
C. 
cymbiformis, ..... 
. xxiv 
E. 
ellipsis, Sail, 
392 
C ? 
rhombea. Hall, .... 
452 
E. 
Burlingtonensis, White cf Whitfield, . . 390 
c. ? 
rigida, White & Whitfield, . 
. 402 
E. 
ISurlingtonensis, (White <$■ Whitfield ) Sail, 387, 388 
Cypricardinia, Sail, .... 
xlvi, 484 
389, 390, 392 
C. 
consimilis, Sail, . . . . 
. 486 
E. 
obliqua, Sail, 
388 
C. 
crassa, ..... 
xlvii 
E. 
Pbilipi, Sail, xxxii, 3S6, 387, 388, 389, 390, 392 
C. ? 
cylindrica, Sail Whitfield , 
. 486 
E. 
rliomboidea, Sail, 
. 386 
C. 
distincta, Billings. .... 
xlvii 
E. 
subcarinata, Sail, 
. expl. PI. 64 
C. 
indent.*!, (Conrad) Sail, . . 485 , 486, 4S7 
E. 
subnasuta. Hall, 
. 507 
C. 
lamellosa. ..... 
xlvi, xlvii 
E. 
subovata. Sail, 
xxxii, 389, 391 
c. 
planulata. (Conrad) Sail, 
. 484 
E. ? 
tapesiformis, Meek, . 
. 391 
c. 
pygmcea, (Conrad) S. A. Miller, 
514 
E. 
tenuistriata, Sail, 
393 
c. 
sulciferus, Sail, .... 
. 487 
E. 
transversal, Sail, 
. 389 
Cypricardites alta, Conrad, 
278 
E. 
undata, Hall, 
379 
C. 
angustata, Vanuxem, . 
. 516 
E. 
undulata. Sail, 
. 508 
C. 
arcuata, Sail, .... 
486 
Elymella, Sail , 
. I, 502 
C. 
bisulcata, Conrad, .... 
. 359 
E. 
fabalis, Sail, 
1, 502, 504 
C. 
carinata , Conrad, .... 
301 
E. 
levata, Sail, 
504 
C. 
carinifera. Conrad, ... 
. 303 
E. 
nuculoides, Sail, 
1, 503 , 505 
C. 
Catsldllensis, Vanuxem, . 
516 
E. 
patula, Hall, 
504, 505 
C. 
Chemungensis, Vanuxem, 
301-303 
Extol 
ium, Meek, 
lvii, lviii, lix, lx, 81 
C. 
concentrica, Conrad, 
275 
E. 
aurarium. Meek, 
lviii, lx 
C. 
corrugata, Conrad, .... 
. 465 
E. 
avie.ula, Swallow, 
. lix 
C. 
elongatus, Conrad,.... 
466 
E. 
aviculatum, Swallow, 
lviii 
c. 
indenta, Conrad, .... 
xlvii, 485 
E. 
Cooperensis, Shumard, 
. lix 
c 
inflata, Conrad, .... 
485 
E. 
demissum, . 
lviii 
G. 
Marcellensis, Vanuxem, 
. 435 
E. 
Shnmardianum, Winchell ? . 
. lix 
C. 
mytiloides, Conrad, 
277, 278 
Eopon, Sail ,.... 
XXV, 307 
G. 
obfonga. Conrad, .... 
. 275 
E. 
bellistriatus, (Conrad) S. A. Miller, . . 308 
C. 
planulata, ..... 
xlvii 
Euchondria, Meek, 
Ixii 
C. 
recurva, Conrad, .... 
. 467 
E. 
neglecta, Meek, 
. Ixii 
c. 
recurva, Vanuxem, 
467 
Eutiiydksma, Sail 
xxxii, 385 
c. 
rugosa, Conrad, .... 
. 297 
E. 
subtextile, Sail, 
xxxii, 385 
c. 
sectifrons, Conrad, 
xliv, 475 
Glossites, Sail, 
xlix, 494 
c. 
subalata, Conrad, .... 
. 283 
G. 
amvgdalinus, ( Winchell ) Sail, 
. 495, 501 
c. 
truncatus , Conrad, 
394 
G. 
depressus, Sail, 
. 496, 497, 499, 502 
Cytherodon, Sail, ..... 
liii, 511 
G. 
ellipticus, 
1, 498 
G. 
, Hall, .... 
511 
G. 
lingualis, Sail, . . xlix, 1, 495, 496, 497, 500 
C. 
appressus, (Conrad) Hall, 
. 449 
G. 
patulus, Sail, . 
. 501 
c. 
nasutus, Sail, .... 
liii, 511 
G. 
procerus, Sail, 
499 
c. 
tumidus, Sail, ..... 
. 448 
G. 
rudicula. Sail, . 
. 498 
c. 
( Schizodus ) appressus, (Conrad) Hall, . 
449 
G. 
subnasutus, Sail, . 
500 
c. 
(S. ) Chemungensis, (Conrad) Hall, 
. 453 
G. 
subtenuis, Sail, 
. 495 
c. 
(S. ) cuneus, Sail, 
451, 458 
G. 
teretis, Sail, 
. 1, 494 
