388 
INDEX. 
PAGE. 
PAGE. 
Pentamerus tenuicosta, Hall, 
II, 
2,35 
Productus Hallianus, Walcott, . 
I, 332 
P. 
tenuistriatus^ Walmstedt, 
II, 
231 
P. 
borridus, Sowerby, 
I, 327 
P. 
uniplicatus^ Nettelrothj 
II, 
247 
P. 
Basallensis, Worthen, . 
I, 327, 332 
P. 
ventricosusy Hall, 
II, 243, 
214 
P. 
lamellosus, Sandberger, 
II, 130 
P. 
Verneuili^ Hall, . 
II, 
224 
P. 
latirostratus, Ilou’se, 
I, 320 
Pexidella Strohmayeri, Swess, 
II, 
102 
P. 
I.eonhardi, AVissmann, . 
I, 326 
Pholidops antiqua, Srhlotkeim, 
I, 157, 
159 
P. 
Llangollensis, Uavidsou, 
I, 317, 318 
P. 
arenavia, Hnll, . 
II, 
325 
P. 
longisjunus, Sowerby, . 
I, 316, 332 
P. 
bellula, Walcott, 
I, 
157 
P. 
magnus. Meek and Worthen, 
I, 327 
P. 
caloeola, sp. uov.. 
I, 157, 
183 
P. 
marginicinctus, Prout, 
I, 327 
P. 
Cincinuatieusis, Hall, 
I, 157, 
159 
P. 
Martini, Sowerby, 
I, 325 
P. 
Hamiltonia;, Hall, 
157, 159; II, 
325 
P. 
mesolobus, Phillips, 
I, 327 
P. 
implieata, Sowerby, 
I, 157, 
159 
P. 
mytiloides, Waagen, 
I, 326 
P. 
lepis, sp. nov., . 
I, 
157 
P. 
Nebrascensis, Owen, . 
. I, 263, 325, 827 
P. 
iinguloides. Hall, 
I, 157; II, 
325 
P. 
Newberryi, Hall, 
I, 329 
P. 
oblata, Hall, 
157 
P. 
nodosus, Newberry, 
I, 326 
P. 
ovalis. Hall, 
I. 
157 
P. 
Nystianus, de Koninek, 
I, 334 
P. 
ovata, Hall, 
I, 157, 
159 
P. 
opuntia, Waagen, 
I, 327 
P. 
patina, sp. nov.. 
I. 
18B 
P. 
ovatus, Hall, 
I, 326 
P. 
sp. ? . 
I, 
159 
P. 
pileiformis, Newberry, . 
1, 826 
P. 
squainiformis. Hall, . 
I, 156, 
159 
P. 
Prattenianus, Norivood, 
I, 326 
P. 
terminalis. Hall, 
I, 
157 
P. 
proboscideus, de Verneuil, 
. I, 326, 333, 334 
P. 
Trentonensis, Hall, 
I, 157, 
159 
P. 
punctatus, Martin, 
I, 327 
Plectambonites crassa, Pander, 
I, 297, 
298 
P. 
Rogersi, Norwood ami Pratten, . . I, 327 
P. 
ohlonga. Pander, 
I, 
300 
P. 
scabrioulus, Martin, 
I, 327 
P. 
ovata. Pander, . 
I, 
300 
P. 
semireticulatus, Martin, 
. I, 325, 327, 329 
P. 
planissima. Pander, 
I, 29G, 297, 
298 
P. 
splendens, Norwood and Pratten, . . I, 332 
P. 
producta, sp. nov.. 
II, 
360 
P. 
striatus, Fiseher, 
I, 326, 334 
P. 
testudinata. Pander, 
I, 
297 
P. 
subaeuleatus, Murchison, 
I, 317, 328 
P. 
transversalis, Wahlenberg, 
I, 29S, 
299 
P. 
sulcatus, Castelnau, 
I, 250 
Plicatula striatocostata, Cox, 
I. 
265 
P. 
symmetricus, McChesney, 
I, 327 
Polytoeohia apicalis, Whitfield, 
I. 
239 
P. 
tenuicostatus. Hall, 
I, 327 
Porambouites intermedia, Pander, . 
II, 
226 
P. 
umbonillatus, Davidson, 
I, 320 
P. 
obscurus. Hall and Whitfield, 
II, 
228 
P 
vittatus. Hall, . 
I, 827 
P. 
Ottawaensis, Billings, . 
11, 
228 
P. 
AA^ortheni, Hall, 
I, 327 
Producta analoga^ Phillips, 
I. 
280 
P. 
(Daviesiella) Llangollensis, Davidson, . I, 317 
p. 
onodesta^ (Say) Hall, 
11, 155, 
157 
P. 
(Etheridgina) complectens, Etheridge, . I, 335 
p. 
monilifera^ ’McCoy, 
I, 
270 
P. 
(Proboscidella) proboscideus, de Verneuil, I, 333 
p. 
rugosa^ Hisiugei*, 
I. 
279 
Pronites culsceiidensy Pander, 
. I. 234,235, 237 
p. 
truncatay Hall, 
I. 
316 
p. 
humilis. Pander, 
I, 238 
p. 
{Triplecia) monilifera-y McCo}”. 
I, 
271 
p. 
oblonga. Pander, 
I, 238 
Productella hystricula^ Hall, 
I. 
316 
p. 
(Clitambonites) adscendens. Pander, . I, 238 
Productas aaquicostatus, Hally 
I, 
326 
Protorhyncha dubia, Hall, 
H, 181 
p. 
jequiradiatus, Shumard, 
I, 
326 
Pi’otozyga exigua. Hall, 
11, 149 
p. 
alternatus, Norwood and Pratten, 
I, 
327 
Ptychosjjira ferita, von Bueh, , 
II, 113 
p. 
Altonensis, Norwood and Pratten, 
I, 
327 
llaflnesquina alte'rnata, Conrad, 
I, 260, 286 
p. 
Americanus, Swallow, 
I. 
326 
K. 
expansa, SowerbVy 
I, 250 
p. 
arouatus. Hall, . 
I, 
327 
R, 
Jukesi, Davidson^ 
II, 339 
p. 
asper, McChesney, 
I, 
327 
Rcnsseloeria ajquiradiata, Conrtul, 
II, 258 
p. 
biseriatus. Hall, 
I, 
327 
R. 
Cayuga, sp. nov.. 
II, 258 
p. 
Burlingtonensis, Hall, 
I, 
327 
K. 
Condoni, McChesney, . 
II, 280 
p. 
Chesterensis, Worthen, 
I. 
327 
R. 
Cumberlandia:, Hall, . 
. . II, 258 
p. 
Christiani, de Koninek,. 
I. 
327 
11. 
elliiitica. Hall, . 
II, 268 
p. 
clavus, Norwood and Pratten, . 
I, 
334 
Px. ? 
Johannis, Hall, . 
11, 262, 263 
p. 
comoides, Sowerbj', 
I, 317, 
318 
R. 
IcBvis, Hall, 
H, 257, 264 
p. 
complectens, Etheridge, 
T, 316, 
335 
R. 
Icevis, Meek, 
II, 264 
p. 
oompressus, Waagen, . 
I, 
326 
R. 
Marylandica, Hall, 
H, 258 
p. 
Cora, d'Orhigny, 
I> 
326 
R. 
mutabilis, Hall, 
II, 258, 259, 266, 297 
p. 
costatus, Sowerby, 
I, 
327 
R. 
ovoides, Eaton, . 
H, 245, 258, 259, 262, 349 
p. 
dissimilis. Hall, . 
I. 
332 
R. 
Portlandica, Billings, . 
II, 273 
p. 
ermineus, tie Koninek, . 
I, 
334 
R. 
Suessaua, Hall,. 
. II. 269, 260, 266 
p. 
Geinitzianus, dc Koninek, 
I, 
327 
Rotzia Adrieni, de Verneuil, 
II, 106,107, 108, 110, 121 
p. 
genuinus, Kutorga, 
334 
R. 
apriniformis^ Hall, 
11. Ill 
