SPIRIFER subspuria, 130 
5 sulcatus, 137 
»  trapezoidalis, 166 
Spirifera 
5 biforata, 80, 88, 145 
iD cyrt@na, 88, 94 
a percrassa, 79, 84 
¥ subspuria, 188 
mH trapezoidalis, 88 
Spirigerina 
a marginalis, 94 
SPIRORBIS 
> Lewisii, 93 
Lewisii, 164 
on tenuis, 164 
SPONDYLOBOLUS, 34, 135 
‘5 craniolaris, 34 
5 craniolaris, 139 
SPoNGARIUM 
. eequicostatum, 175 
Edwardsii, 161, 175 
interlineatum, 175 
3 interruptum, 175 
Sponen, 100 
Sponges, 99 
” 
STAUROCEPHALUS 
5 Murchisoni, 50, 131 
STELLISPONGIA, 99 
STENOPORA 
»  fibrosa, 29, 42, 73, 92, 107, 162, 
176 
- var. lycoperdon, 42 
re var. lycopodites, 176 
1 var. regularis, 42, 176 
PA granulosa, 107 
ramulosa, 29, 42, 73 
SrENOTHECA 
. cornucopize, 8 
Strephodes 
Pa Craigensis, 43 
pseudoceratites, 92, 112 
or trochiforme, 113 
3 vermiculoides, 112 
Stricklandinia, 80,87, 95 
STROMATOPORA 
es striatella, 40, 84, 99 
Strombodes 
x diffluens, 115 
sa Labechit, 115 
ee Murchisoni, 115 
o Phillipsti, 115 
op plicatum, 114 
> typus, 115 
7 Wenlockensis, 115 
STROPHOMENA 
alternata, 62 
alternata, 62 
applanata, 88 
antiquata, 61, 82, 88, 147 

INDEX. 
STROPHOMENA arenacea, 88 
- bipartita, 63 
9 compressa, 88 
+ compressa, 95 
concentrica, 35, 62 
corrugata, 62, 147 
deltoidea, 62, 88 
és deltoidea, 63 
Pf depressa, 62, 82, 88, 95, 147, 
181 
i expansa, 63 
+ expansa, 35, 62 
5 euglypha, 146, 169 
5 filosa, 146, 168, 181 © 
funiculata, 63, 88, 146, 168 
3 grandis, 63 
Ouralensis, 95, 146 
pecten, 63, 88, 146 
ptychotis, 62 
quadrata, 147 
sericea, 82 
simulans, 63, 147 
tenuistriata, 63 
undata, 62 
ungula, 62 
5 species, 23, 35, 82 
SYRINGOPHYLLUM 
. organum, 115 
SYRINGOPORA 
bifurcata, 111 
fascicularis, 111 
oh Jiliformis, 111 
or reticulata, 111 
= serpens, 111 
Syringopora, 100 
Syrrocrinvs, 119 
TAXOCRINUS 
on granulatus, 126 
> marmoratus, 125 
5) nanus, 126 
Orbigni, 163 
simplex, 125 
tesseracontadactylus, 125 
p tuberculatus, 125 
Tellinomya 
‘5 linguleecomes, 13 
TENTACULITES 
anglicus, 47, 76, 85 
os annulatus, 76 
ornatus, 76, 128 
striato-costatus, 128 
tenuis, 177 
TETRAGONIS 
x, Danbyi, 176 
TETRAGRAPSUS 
bryonoides, 20 
crucialis, 20 
quadribrachiatus, 20 
” 
” 
”» 

” 
arata, 16 
bijugosa, 16 
corrugata, 8 
cuspidata, 18 
Forbesii, 66, 153, 184 
Harknessi, 24 
Homfrayi, 8 
obtusa, 8 
operculata, 16 
penultima, 8 
reversa, 66 
simplex, 17 
stiletto, 8 
suleata, 17 
trilineata, 18 
species, 2, 153 
THECIA 
” 
” 
” 
expatiata, 110 
Grayana, 110 
Swinderniana, 110 
Toniaster, 46 
Trachyderma, 10 
levis, 176 
TRACHYDERMA 
Trap 
5 levis, 47 
elocera, 134 
TREMATIS 
” 
” 
” 
” 
corona, 55 
punetata, 55 
Siluriana, 135 
striata, 180 
TREMATOPORA, 100 
Treta 
spis, 50 
TRETOCERAS 
o semipartitum, 192 
Tretaspis, 50 
TRIARTHRUS, 32 
Trinodus 
” 
” 
agnostiformis, 48 
tardus, 48, 49 
TRINUCLEUS 
concentricus, 49, 78 
favus, 31 
fimbriatus, 32 
Gibbsii, 22 
seticornis, 50 
TRIPLESIA 
” 
McCoyana, 56 
TROCHOCERAS 
giganteum, 160, 174 
spurium, 160 
5 species, 98, 160, 174 
” 
Trochoceras, 70 
TRocHOLITES, 71 
TROCHONEMA 
= bijugosa, 156 
Trochurus, 50 
203 
