9 Brack. 
Systematic. 
2031 
Silurian p. 159, Grabau Michigan Geol. 
Biol. Surv. Pub. Geol. Ser. 1 1910. 
f Micromitra ( Paterina ) lucina sp. n. 
China Cambrian, Walcott Smith- 
sonian Inst. Misc. Collect. 57 p. 73. 
f Moorefieldella subgen. n. of Rhyn- 
chonetta p. 62, type R. eurekensis 
(Walcott), eurekensis var. n. subcub aides, 
p. 64, Arkansas Mississippian, Girty 
U. S. Geol. Surv. Bull. No. 439. 
f Nisusia depsaensis sp. n. Spiti 
Cambrian, Reed Pal. Ind. 7 1 p. 49. 
f Orbiculoidea limala sp. n. Magdalen 
Is. Carbonic, Beede N. Y. St. Mus. 
Bull. No. 149 p. 177.— fO. nitida 
(Phill.) = ( Discina orbicularis, Bolton), 
Jackson Geol. Mag. 8 pp. 403-406. — 
fO. telleri, wardi, spp. n., Wisconsin 
Devonic, Cleland Wisconsin Geol. 
Nat. Hist. Surv. Bull. 21 p. 85. 
f Orthis flabellitcs var. n. militaris 
p. 75, interplicata, nettelrothi, spp. n., 
p. 76, United States Silurian, Foerste 
Granville Ohio Bull. Sci. Lab. Denison 
Univ. 14. — fO. gentilis sp. n. Italy 
(Monumenz) Devonian, Gortani Pal. 
Ital. Pisa 17 1911 p. 149.— fO. ( Flee - 
torthis) plalyslrophioides sp. n. Aus- 
tralia Cambrian, Chapman Melbourne 
Proc. R. Soc. 'Viet. 23 p. 311. — fO. 
rhenana sp. n. Germany Devonian, 
Fuchs Stuttgart Cent, fur min. Geol. 
Pal. 1911 p. 72. 
f Orthostrophia newsorrtensis, dixoni, 
spp. n., United States Silurian, Foerste 
Granville Ohio Bull. Sci. Lab. Denison 
Univ. 14 p. 74. 
t Orthoteles canlrilli sp. n. England 
Carboniferous, Thomas Mem. Geol. 
Surv. U. K. 1 1910 p. 116. 
f Palaeoglossa nom. n. pro Gloss ina 
Phil, (preoc.), Cockerell Nautilus 25 
p. 96. 
t Pentamerella multicoslata sp. n. 
Wisconsin Devonic, Cleland Wis- 
consin Geol. Nat. Hist. Surv. Bull. 
21 p. 94. 
f Pentamerus galeatus varr. n. hes - 
periae p. 175, contrastans p. 176, 
granatus sp. n. p. 180, venetus sp. n. 
p. 181, Italy (Monumenz) Devonian, 
Gortani Pal. Ital. Pisa 17 1911. 
f Pelrocrania nom. n. pro Craniella 
Oehlert (preoc.), Raymond Pittsburgh 
Ann. Carnegie Mus. 7 p. 229. 
t Platymerella manniensis sp. n. 
United States Silurian, Foerste Gran- 
ville Ohio Bull. Sci. Lab. Denison Univ. 
14 p. 70. 
f Platystrophia colbiensis sp. n. p. 55, 
and varr. n. mutala p. 56, precursor 
p. 57, clarlcsvillensis sp. n. p. 65, 
United States Ordovician, Foerste 
Granville Ohio Bull. Sci. Lab. Denison 
Univ. 16. — ponderosa nom. n. 
p. 225 and var. n. auburnensis p. 226, 
United States Ordovician, Foerste 
Granville Ohio Bull. Sci. Lab. Denison 
Univ. 14. 
f Plectorlhis ( Eridorlhis ) nicklcsi 
p. 222, rogersensis p. 223, spp. n.. 
United States Ordovician, Foerste 
Granville Ohio Bull. Sci. Lab. Denison 
Univ. 14. 
f Produdella herminae var. n. sinuata 
Italy Devonian, Gortani Pal. Ital. 
Pisa 17 1911 p. 156. — \P. hirsuliformis 1 
var. n. batesvillensis Arkansas Missis- 
sippian, Girty U. S. Geol. Surv. Bull. 
No. 439 p. 51. 
■\Productus arseneaui p. 162, prouti , 
tenuicostiformis, p. 163, doubleti p. 165, 
auriculispinus p. 166, spp. n., daivsoni 
var. n. acadicus p. 162, Magdalen Is. 
Carbonic, Beede N. Y. St. Mus. Bull. 
No. 149. — fP. insinuaius sp. n. Okla- 
homa Carboniferous, Girty New York 
N. Y. Ann. Acad. Sci. 21 p. 129. — fP- 
isachseni sp. n. Spitzbergen Karbon, 
Holtedahl Kristiania Skr. Vid. selsk* 
1911 No. 10 p. 32. — -\P. subsulcatus 
p. 47 and var. n. janus p. 48, moore- 
fieldanus p. 48 and var. n. pusillus p. 49, 
spp. n., Arkansas Mississippian, Girty 
U. S. Geol. Surv. Bull. No. 439. 
f Proscliizophoria subgen. n. of Orthis 
type O. personata Zeiler, Maillieux 
Bruxelles Bull. Soc. geol. 25 1911 
p. 177. 
f Prosserella subgen. n. of Spirifer 
p. 138, modestoides p. 139 and mut. n. 
depressus p. 141, lucasi p. 142, subtrans- 
versa p. 143 and mut. n. alta p. 145, 
unilamellosus p. 146, planisinosus p. 147, 
spp. n., Ohio Michigan and Ontario 
Silurian, Grabau Michigan Geol. Biol. 
Surv. Pub. Geol. Ser. 1 1910. 
f Pugnax magdalena sp. n. Magdalen 
Is. Carbonic, Beede N. Y. St. Mus. 
Bull. No. 149 p. 166. — fP. osagensis 
var. n. percostata Oklahoma Car- 
boniferous, Girty New York N.Y. 
Ann. Acad. Sci. 21 p. 130. 
