Pilidion .

161

Gasteropoda,

Subdivision.

Genus, Species, andAuthor.

Pilidion, Barrande , 1865?

Fauna G. g. 1 ...

Bohemicum,

Barr.

Fauna G. g. 3 ...

fastigiatum.

„

Platychisma,

M‘Coy, 1

Llan., Llandov.,

helicites,

Sowerby.

L.,Passage beds

Trochus.

? Red Pentam.L.

scutiger,

Eichw.

L .

simulans,

Williamsi,

Llandov. ?, L. ...

Sowerby.

w.

ep. ind.,

Platyostoma,

Conrad, 1

Delth. Sh. Lst....

arenosa,

Conrad.

J> »>

depressa,

Hall.

CL., Niag.

hemisphserica,

»

Niag .

Niagarensis,

tt

Delth. Sh. Lst. .. .

? subangnlata,

)>

>* >»

ventricosa,

Conrad.

L. H. G .

sp. ind.,

Bogers.

CL .

Hall.

Dawson.

„ (4),

Swallow.

Corall. L., Schoh.

Hall.

Pleurotomaria, JDefran

CS.

abrupta,

Billings .

P., Potsdam S...

advena?,

Winchell.

Pleta, Corall.Lst.

ssquilatera,

Eichw.

Div.H,CS.,Queb.

Agarista,

Billings .

G.

Tr .

Agave,

JJ

ambigua,

Hall.

B., BL., Tr., H.

Americana,

Billings .

B. G.

CH .

Amphitrite ,

>>

Carad.

angulata,

Murchisonia.

Sowerby.

CH.

antiquata,

Hall.

Pleta .

antiquissima,

Eichw.

B., Tr.

aperta,

Salter.

CS.

Arabella,

Billings .

BL., Tr.

Araehne,

>»

H. B. G.

Artemis,

>.

TJ.L.

articulata,

Sowerby.

Niag.

Axion , Winchell &Marcy?

balteata,

Phillips.

Pleta .

Baltiea, De Verueuil.

Pleta, Tr. ? .

bellicincta,

Hall.

Lower Stage. Middle Stage.

844=Trociius.

North XTral (Russia ).

843=Naticopsis, M'Coy.

(N.York ) Oneida County .

ce, 1825.

Mingan Isles (G. St. Lawr.).

Wisconsin (U. S. America ).

Isle Dago, Hohenholm (Bal-tic).

(Newfoundland W.) Table-head.

(Minnesota )Naquerau River.

(NewYork ) Jefferson County,(Minnesota )Naquerau Ri-ver.

(Anticosti ) Charlton Point&c., (Can.W.)LakeHuron,Cape Smyth andSt. JosephIsland, Ottawa City, Min-gan Isles (G. St. Lawr.).

Mingan Isles.

New Ross (Ireland ), Char-field Green, Gloucester­ shire .

New York .

R6val, Wesenberg, &c. (Es-thonia), Isles Dago &c.,Poulkova &c. (Russia ).

(Canada W.) Middle Ottawa River ?.

(Canada E.) Lower Ottawa River .

MiddleOttawaRiver, MurrayBay, Montreal (Can. E.).

Cape Smyth, Lake Huron (Canada West ).

Reval (Baltic, Russia ).

Lake St. John (Canada E.),Wesenberg (Esthon.), IsleDago, Hohenholm.

Upper Stage.

(Bohem.)Lochkov &c.,Tetin.

„ Hlubocep.

Westmorel., Horeb Chapel,Kington, Herefordshire ,Llandeilo, Park Lane, &c.,Ludlow, Arisaig (Nova Scotia ), S.W. Scotland ,Isle Oesel, &c.

Lesmahago, Pentland Hills(Scotland ).

Llangadoc, Llandovery, Ho-reb Chapel (Wales ), West-moreland.

(Wales ) Craig-hir.

(New York State , east) Cats -kill.

(New York , east) Catskill,Becraft’s Mountain .

Isle Anticosti (G. St. Lawr.),(New York ) Rochester ,Grimsby (Canada West ).

(New York ) Wolcott &c.,Grimsby (Canada West ),Tennessee .

(New York , east) Albany Co.

(NewYork , east) Catskill &c.,Gasp6 (Canada East).

Pennsylvania .

Arisaig (Nova Scotia ).

Cape Girardeau (Missouri ).

(New York ) Schoharie Co.

Isle Oesel (Baltic).

(Gothl.) Grotlingbo, (Engl.)

Ludlow, Ledbury.

Chicago (Illinois ).

Gothland.

2 T