Bellerophon.

144

Heteropoda.

Subdivision.

Compact Pleta...Carad., U.L. ....

Carad., Llandov.H. E. G.

?

Pleta.

LXlan.

L.L.

Orthoc. L., Pleta

distortus,

Duriensis,

expansus,

falcatus,

fratemus,

Ganesa ,

gibbus,

granosus,

helix,

hippopus,

infundibulum,

Ingricus,

lateralis,

L. H. G. ...ArdoissiereSchist 1’Pleta.

Laurenticus,

Huissierei,

locator,

CS.

Pleta.

H. E. G.

P., Low.TremadLlan.

Llan.

Orthoc. Lst...Pleta .

Fauna D. d. 1...j H. E. G., Carad,

Llandov.,U.L....Llan., Carad. ...

Queb. Gr.

Sh. above Tren-ton Lst.

Niag.

Arenig, Llan.,Carad.

Genus, Species, andAuthor.

Eichw.

Sharpe.

Sowerby.

macer,

megalostoma,

miser,

multistriatus,

Murchisoni,

striatus.

nanus,

nautarum,

navicula,

nitens,

nitidus,

nodosus,

obtectus,

ornatus,

Palinurus,

Patersoni,

Salter.

Billings.

Salter.

Portloek.

Eichw.

Eichw.

Salter.

Verneuil,

Eichw.

Billings ?Eouault.Eichw.

Billings,

Salter,

D’Orbigny ,

Eichw,

Salter.

Eichw.

Barr.

Salter.

Phill

Conrad.

Billings

Hall.

perforatus, Winch . & Mar,perturbatus, Sowerby,Euomphalus.

Tr.

profundus,

Emmons.

U.Pentam. Lst...

Hall.

Tr.

pugnus,

Salter.

punctifrons,

Emmons.

Orthoc. Lst. ...

pygmseus,

Eichw.

radiatus,

CH.

rotundatus,

Hall.

Carad.

semirugosus,

Orthoc. Lst.

Siluricus,

Eichw.

L. H. G.

D’Orb

U.Llandov., W.

subdecussatus,

M'Coy.

CH., Tr., Carad.

sulcatinus,

Emmons.

Lower Stage.

Middle Stage.

Gatchina (Russia ).(Portugal ) Yallongo.Dolydd, Ceiriog (BerwynMountains).

(S.W. Scotl.) Drummoch.Ayrshire.

(Anticosti Isl.)EnglishHead.Niti (Himalaya ), ChorhotiPass.

Poulkova (Eussia).Shropshire , Kitton Castle,Shelve.

Poulkova (Eussia).

(Isle Dago, Baltic) Hohen-holm.

Bain, Vitr6 (France ).

Isle Odinsholm, Wesenberg (Esthonia ).

(Can. W.) Leeds County &c.Isle Odinsholm (Baltic).Macasty Bay (Anticosti ).Tremadoc, Llanerch(Wales ).

Poulkova (Eussia).

(Esthonia ) Beval, Isle Dago,Hohenholm (Baltic).Presqu’ile de Nouk (Estho.).(Bohemia ) Eokitzan.

(N. & S. Wales) Llanwddyn,Bala, &c., (England) Hor-derley.

(Wales ) Marloes Bay.

(Can. W.) Point Eich, Lake Huron , (N. Wales ) Llan-gollen, Nant Francon.Stanbridge, (Can. E.) Lake Champlain .

Wisconsin .

Shelve,Shropshire , Scotland ,(N. & S. Wales) Bangor ,AbereiddyBay, St.David’s,Whitesand Bay, PensarnGreen (Ireland ).

New York (U. S. America ).

Tasmania West.

New York , (Canada West )Middle Ottawa Eiver.

Poulkova (Eussia).

(Isle Dago) Hohenholm.

New York , (Canada West )Middle Ottawa .

(Wales ) Gwreiddian, Llan-wddyn.

Poulkova (Buss.), IsleOdins-holm (Esthonia ).

(S.W. Scotl.) Mulock, Llan-rwst,Meifod,Montgomery-shire.

New York , (Can. W.) Mid.Ottawa , Horderley, OnnyEiver, Shropshire,Tyrone .

Arisaig (Nov. Sco.), (Wales )HorebChapel,Plas Madoc,(England) TJnderbarrow,Ludlow , Felindre, Mal-

Tirnaskea, Tyrone (Ireland )Bogoslowsk (Ural).

(Engl.) Vinnal Hill, Ludlow ,Ledbury.

(Canada E.) Cape Gaspe.

Upper Stage.

(S. Wales) Horeb Chapel,Felindre, Malvern.

Arctic Seas (America ), Dun-das Isle &c.

(Wales ) Marloes Bay.

Chicago (Illinois ).

(New York ) Schoharie.

Arisaig (Nova Scotia ).

S.W. Scotland, (Wales )Llan-rwst.