Calloporaonealllcoinniunis (James).
(SeealsoPlate IV, figs. 8and9.)
Fig. 13. Tangentialsection,
X
20, ofanaverageexanii^ie, exhihiting thefew meso- pores and angular zoceeia marking this variety, and the wall structure of aCdllopora.McMicken memberoftheEdenshale. Cincinnati, Ohio.
Pl.ATK IL
Bythvpornnrvtipura (NieholsonJ.
1and2. Tangential and vertical sections, respectively,
X
20, of one of the originals of Chadeies in'mittus James. Theexternal charactersaswellas theinternal features shown in thesefiguresare precisely thesameasin theformpreviously describedby NicholsonasPtilodicti/aarctipora.McMickenmemberofEdenshale, near Loveland, Ohio.
Dekayellit nlricJd (Nicholson).
3.
A
fewcellsofa tangentialsection,X
35.4. Portionof the peripheral regionof avertical section,
X
20. Thesefigures weredrawnfromsection.spreparedfromthetypeofMoidicuUporaohioensis James. Theinternalcharacters areinallrespects likethoseofD.ulrichi.Edenshale,Cincinnati, Ohio.
RldnidktyaparaUda(James).
(Seealso PlateY,figs. 2, 3.)
5. Tangentialsection,
X
20,of stipetakenjustbeneatha bifurcationandshow- ing theagedconditionof thisspeciesdistinguishedby Jamesas Ptilodictya granulosa.6. Tangentialsection,
X
20, ofayounger branchagreeingwith theoriginal of PlilodidyapurallelaJames.7. Vertical section,
X
20, preparedfromthesamespecimenasfig. 6.Economy memberofEdenshale, Cincinnati, Ohio.
Aspidopora erceidrica (James).
(SeealsoPlate V, figs. 7,8.)
8and9. Tangential and vertical sections,
X
20, drawn from James's type sections.10and11. Tangential section of another specimen,
X
20,anda small portion ofsame,X
35.12. Vertical section,
X
20, showingnearly theentirewidthofoneofthe small disksof this species.Southgatememberof Eden shale, Cincinnati,Ohio.
Dekayiumarulata (James).
13. Vertical section,
X
20, of an average example,containing rather moreof theextremelydelicatediaphragms thanusual.14. Tangentialsection of same,
X
20, showing oneof the macul;ewhichoften occur,andthe thick walls characterizingthespecies.Thesesectionswere prepared from James's typeofthespecies.
McMicken memberoftheEdenshale,Loveland,Ohio,
02 PROCEEDINGS OF THE NATIONAL MUSEUM.
vol.xxHem'qthragnKi irliltfii/di (James).
(See alsoPlateIV, tijrs. 1-4; plateV, fig. o.
)
Fig. 15. Tangentialsection,
X
20, showingmany of thezcxecia withsectidiisofthe semidiaphragms.16. Vertical section,
X
20, showing undulatingwalls in axial region,complete diaphragmsinouter partofsame andsemidiaphragmsintliethick-walled peripheralregion. These incompletediaphragmsaredistinctive ofHemi- phragina.EconomymemberoftheEdenshale, (.'incinnati, Ohio.
Plate III.
A
iiiplexoponi tillosa (D' Or])igny) .1. Tarrgential section,
X
20, theupperhalf of figureshowingthe charactersof thematureregion,thelowerhalfthoseoftheimmaturezone.2. Tangentialsectionthroughthematureregion,
X
''^^, exhibiting thenumer- ousacanthoporesandthedarklineseparatingadjoiningzocecia.3. Vertical section,
X
12, showing two successive alternatepairs ofimmatm-e and maturezonesandabove thesea longer immature zone. The figure brings out the difference inwall structure and tabulation characterizing the respective regions or zones.Sectionsprepared fromthe figuredtypeofMoulicnlqwrasubri/liiidriat.
James.
Fairviewformation,C'incinnati, Ohio.
Stomatoporadelicatnla (James).
4and5. Portionofazoarium
X
12andthreezoo'cia,X
20,oftheformtowhich Miller applied thenameS.provUinu.BelleviewbedoftheFairviewformation, Cincinnati, Ohio.
6. Portionof zoarium,
X
12, showingvariations in the length of zooecia. Inmanyspecimensthe general proportionsof the zocecia in the lowerhalf ofthefigureisconstant.
CorryvillebedofMcMillanformation, Cincinnati, C)hio.
'7. Severalzoa>cia,
X
12, oftheformnamed>S. feintissiinaby Ulrich.Economy memberofEdenshale, Cincinnati,Ohio.
Thespecimensillustratedhere were selected fromthe lot marked as the typesof his speciesby Mr. Jami's.
Sti</inat('l.hi(hjcliei (James).
8. Tangentialsections,
X
20, the upperandlower halves exhibiting the char- acters of the mature and immature regions, respectively. It should lieremarkedthat thelarger size ofthezoax-iaintheupperhalf ofthefigure isduetothefactthat itincludesalargepartofoneofthemacuhc.
9. Tangential section,
X
50, showing minute structureof walls and acantho- pores.10. Vertical section,
X
12, passing through successive jiairs of iunnature and maturezones.Sections prepared from James'sfigured tyi)eofthespecies.
Mt. Auburn memberoftheMcMillanformation, Lebanon,Ohio.
NO. 1M2.
JAMES TYPES OE BRYOZOA—BASSLER. 63
Bythoporaparvula (James).
(SeealsoPlate V, fig.4.)
Figs. 11and12. Tangentialandvertical sections,
X
20,preparedfrom oneofthe types of this delicatebryozoan.McMicken memberoftheEdenshales, Loveland, Ohio.
Arthroporacleavelandi (James).
(SeealsoPlateIV,fig. 6.)
13. Outline drawing of type of Ptilodicti/a cleavelandiJames,
X
2. Thisillus-tratesthe usualform of theupper segmentsof thezoaria of this species.
14and15. Outlinedrawingsofthe typespecimensofP.grahainiJames. These arebifurcatedinitialsegments.
16. Outlinedrawingoftypeof P. duhiaJames,
X
2. Thisalsoisaninitialseg-mentofthesamespecies astheoriginal ofP.cleavelandi, butdiffersinits
simple, unbifurcated, upperarticulatingextremity.
All ofthespecimensarefrom theEdenshalesatCincinnati, Ohio.
Plate IV.
Heiniphragtna.whitfieldi(James).
(Seealso PlateII,figs. 15, 16; plateV, fig.5.) 1 and2. ^'iewsoftwooftheJamestypespecimens,
X
1.5.EconomymemberofEdenshales,Cincinnati, Ohio.
3and4.
Two
fragmentsofamorerobustform ofthis species,X
1.5.SouthgatememberofEdenshales, Covington, Kentucky.
Arfhropom kentuckyeusis (James).
5. View of the type and only knownspecimenof thisincompletely known
species,
X
6. The lower part of the specimen is l^roken away but doubtlesswasoriginallyobtusely pointed.Bromley shales of the Trenton, Ohio River bank,opjiositeCincin- nati, Ohio.
Artltn>j>orai-tearelaiidi (James).
(SeealsoPlateIII, figs. 13-16.
)
6. A complete segment of this species,
X
6, showing the comparatively slender habit of growth and the short lateral })ranches which diverge very nearly atrightanglesandareparticularly characteristic.McMicken memberoftheEdenshales, Cincinnati,Ohio.
ArfhroporiirinrimndietiHis (James) .
7. View ofthespecimenmarkedasthe typeofthis species,
X
6. Itismerelyoneof the separated segments butisinagoodstate of preservation and quite typical.
Mt. Hopememberofthe Fairview formation, Cincinnati, Ohio.
(^4
PROCEEDINGS
<>FTHE NATIONAL MUSEUM.
Ccdloporaoneallicommunis (James).
(SeealsoPlateI, fig. 13.) Figs. 8and9.
Two
fragmentsoftillsrobustvariety,X
l.o.McMickenmemberoftheEdenshale,Cincinnati, Ohio.
Pl,ATK \'.
]ilcr<iiio/K>r(i iiiecki (James).
1. Viewof a portion of the surface of the slal) containing flie types of this species,
X
6. Thefigurecontainstwosimpleandonebifurcateds< rnientsandexhil)itsthe elongate, narrow, subcylindi-ical form distinguishngthe joints of thisdelicate bryozoan.
Mt. HopememberoftheFairview formation, Cincinnati, Ohio.
Mhinidictydp<iraUelit (James).
(SeealsoPlateII, figs. 5-7.)
2. Viewof the typespecimen ofPtilodicfi/ayranalosaJames,
X
6, showingthe thickenedgranulose wallsfound inoldexamples.3. Viewofthe typeofPtilodictijnparallelaJames,
X
1-5. Itisthe centralstipe inthefigureandpartycoveredby thefreecheekofan Acidaqm.Economymemberof Edenshales, Cincinnati, Ohio.
Bythoporapdrrula (James)
.
(SeealsoPlateIII, figs. 11, 12.)
4. Surface of slab bearing type specimens,
X
1.5, showing several brancheswithin the space outlined withink.
McMicken memberof Edenshales,Loveland, Ohio.
Hemiphragma whitfieldi(James) .
(SeealsoPlateII, figs. 15, Ki; plateIV, figs. 1-4.)
5. Perfectly cleaned surface of specimen sliowing semidiaphragms witliiii zotecia,
X
8.Southgatememberof Edenshales, AVestCovington,Kentucky.
Ceramoporellawhitet(James).
(SeealsoPlateVI, figs. 8-10.
)
6. SurfaceofJames'stype,
X
8, showingthe nearlydirectaperturesandincon- spicuouslunaria,whichfeaturesdistinguishthespeciesfromtheotherwise similar C. oliioensis (Nicholson).CorryvillememberoftheMcMillanformation, Cincinnati, Ohio.
Aspidoporaecceutnca(James).
(SeealsoPlateII, figs. 8-12.)
7. Theunderside of a specimen of this peculiai- spei-ies,
X
by8, showingthe eccentricstriation of this surface.8. Upper, celluliferoussurfaceofanotherexample, X 8.
SouthgatememberofEdenshales, Cincimiati,Ohio,
NO.1442.
JAMES TYPES OF BliYOZOA—BASSLER.
65 Plate YI.Calloporaonealli (James).
Figs. 1and2. Viewsof t\voofthetype specimens,
X
1.5.Economymem})erof Edenshales, Cincinnati, Ohio.
CfiUupordoneallii<igil1ariuid('t< (Nicholson).
'.\and4. Views of two typical examples,
X
1-5, introduced for comparisonwith
C
onealli.McMickenmemberofUticashales, Cincinnati, Ohio.
Coeloclemamreni (James).
."). A'ertical section,
X
20.6. Tangentialsection,
X
20, showing the large prominent lunaria and the resultingbilobedappearanceof thezooecia.Mt. Auburn member, Lebanon, Ohio.
('eramojiorella(/ranulo.sa milforden><is (James).
7. Tangential section ofa portionofa macula,
X
35. In this regionalone afewgranules are developed.
Edenshales, Milford, Ohio.
Ceramoporellaivhitel (James).
(SeealsoPlateV, fig.H.
)
8and9. Tangential sections,
X
20 and 35, respectively,showing the usual aspectofthis species.10. Onelayerof zo(ecia ofa vertical section,
X
20.Corryvillemember,Cincinnati, Ohio.
Plate VII.
Frasopora hospitaU>< (Nicholson).
1. Verticalsection ofthe basal partofthe zoarium,
X
20, drawnfrom James'styi)esection of MonticuUporaivinchelU. Thesection, partlyon accountof an error in the preparation, shows onlycurved tabulte as described by Mr. James,insteadofthe usual cystiphragms.
2. Vertical section,
X
20,exhibiting the sh'ape and distribution ofthecysti-phragmsinthematureregion.
3. Tangential section of the mature region,
X
35. The large acanthopores especially characteristic of P. hospitalixarewellbroughtoutinthesection.Figs. 2and 3weredrawnfromthinsectionsprepared fromthesame specimenusedbyMr. Jamesindescribingand illustrating his species.
Richmondgroup, nearLynchburg, Highland County. Ohio.
Lioclemella subfusiformis(James).
4. Vertical section,
X
20, of a zoarium showing the v;ntabulated zooecia and thecloselytabulated mesopores, thelatter beingrestricted to the periph- eralregion. >Proc. N.M.vol.XXX
—
06 566 PROCEEDINGS OF THE NATIONAL MUSEUM.
vol.xxx.Figs. 5and6. Tangentialsections,
X
20andX
35. Theangularthin-walledzoceciaand me.sopores oftencloselyresembleeachother, but the morerounded formandslightlythicker wallsoftheformerwillserveasameansof dis- tinguishingthem.
7. Naturalsizeviews ofthreeofthetype specimensfiguredbyJames.
WaynesvilleformationoftheRichmondgroup, Westboro, Ohio.
Ilelopora harrisi (James).
8.
Two
segments,X
12, fromtypelocality (afterUlrich).
Waynesvilleformation oftheRichmondgroup, Waynesville, Ohio.
BatostomarariabileUlrich (restricted).
9. Vertical section,
X
20, passing through the mature and a portion of tlieimmatureregion.
10. Tangential section,
X
20, exhibiting the angular, thick-walled contiguous zoa?cia,thecomparativelysmallacanthoporesandtheabsenceofmesopores.TopofRichmondgroup, Osgood, Indiana.
FJixnopora Jimbriata(James)
.
11. Outlinedrawingofthetypespecimen, the basalextremityrestored; natural size.
12. Tangentialsection of type,
X
20.Clinton formation, ClintonCounty, Ohio.
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. XXX PL. I
iOmo:
James Typesof Ordovician Bryozoa.
ForEXPLANflTIONOFPLATESEEPACES60, 51.
U.S. NATIONAL MUSEUM PROCEEDINGS, VOL. XXX PL. II
5yH!4#^^K!
James Typesof Ordovician Bryozoa.
For explanation of plateseepages61, 62.
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. XXX PL. Ill
James Typesof Ordovician Bryozoa.
For explanation of plateseepages62, 63.
U.S. NATIONAL MUSEUM PROCEEDINGS, VOL. XXX PL. IV
James Typesof Ordovician Bryozoa.
For explanationofplateseepages 63, 64.
U.S. NATIONAL MUSEUM PROCEEDINGS, VOL. XXX PL. V
JamesTypesof Ordovician Bryozga.
For explanation of plateseepage 64.
U.S. NATIONAL MUSEUM PROCEEDINGS, VOL. XXX PL. VI
1
3
\ -
1%
*<-
^-(j^A.^
James Typesof Ordovician Bryozoa.
For explanationofplateseepage65.
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. XXX PL. VII
James Types of Ordovician andSilurian Bryozoa.
For explanationofplateseepages65, 66.