JAMKS TYPES OF BRYOZOA-BASSLER. 55

56 PROCEEDINGS OF THE NATIONAL MUSEUM.

voi,.xxx.

one-tenth of a line in diameter. Cells iinisorial, each

growing by

a pointed base

from

the cell below, and expanding gradually to the

mouth; two

or threecells in the space of aline. Apertures terminal, elevated, and nearly or quite the diameter of the cells and placedon their front face.'"

Mr. James'sdescription l)ringsout all theessential features ofthis variable species. Itsconstantchara(;ter,sarethe elongate, club-shaped zo(jecia increasing very gradually and regularh" in width

from

the narrow proximal portion to the wider rounded anterior end,

where

a diameter of about .12

mm.

is reached. Considerable variation occurs in the length ofzocjeciaof the

same

zoarium, sothat speciricdifferences

made upon

this character can notbe maintained.

At

certain horizons, and ^{especially in} the Coi'ryville bed, very luxuriant growths of this

form

are found

upon

otherorganisms, and itis in such specimensthat the greatest variation is exhibited.

Mr.

Miller applied the

name

S.

prouta7ia to thevery,elongate

form from

theCorr3^ville bedat Cincin- nati, whilespecimens with the

same

characters, but

coming from

the lower part of the

Eden

shale were described as S. tenulssima by

Mr.

Ulrich.

The form

with short zotecia

was named

Rliopalonaria pev- teiruls ])y

Mr.

Uli'ich, ])utlaterplaced by

him

asas^nonAanof S. -prou- tanaMiller. Nicklesandthewriterrecognized Mr. James's name,but considered S.

tenuhmaa

of sufficientvalue to rankasa variety. Fur- therstudy

may

indicate that this latter

form might

still be ranked as a variety insteadof being considereda s^nionym asabove.

Occurrence.—y^v^. James's typelotcontains specimens

from

various horizons of the Covington and

Richmond

groups in southwestern Ohio. The species I'anges through the various divisions of the

Mohawkian

and Cincinnatian divisions of tlie ()rdo\ician, and has also a wide geogi-aphical distribution.

STROMATOPORA

^?

LICHENOIDES

James.

Slrnmatopora/ lii-heiioiilexJ.\mk><, Pali'(»ntoloii;ist, No.3, 1879, p. 18.

StroiiiatdjMini f Hi-hnwidrsJ. F. Jamkh, .lour. Cindnnati Sof. Nat. Hist., XV,

1892, p. 90.

Althougii notdescribed as bryozoa, the types of this speciesprove to belong to this class. All of the specimens are basal expansions of thearticulated l)ry()zoan Artliropoi'a. Five of the examples are

from

the

Richmond group

and are undou])tedly the bases of a

form

of Arthropoi'nn/itiffirt found\eryabundantly ⁱⁿ these rocks; the remain- ingfour specimens aie

from

the

Eden

shales at Cincinnati and prob- ably belong to Art/iroj>ora cleavelandl James, Several species of Artliroporn occur in the Eden, but as A. cleavelandl is the most abundant, it is

most

probable tiiat the P2den specimens are of this species.

NO.1^42.

JAMES TYPES OF BRYOZOA^BASSl.ER.

₅₇

STROMATOPORA TUBULARIS

Jaroes.

Stromatopora tuhvhirix James, Jour. Cinoinnati 8oc. Nat. Hist.,VII, 1884,p.l;-{9, pi. VII,%s. 3-3/;.—J. F. James, Jour. Cincinnati8oc. Nat. Hist., XV,1892,

J).89.

"Cylindrical or tuhuhir, liollow, 2 to ^{'2,^} inches in diainctcr and 1

inch or

more

lon^-; laminae about onc-twenticth of an incli thick, irrco'ular, wavy,^{vvitli serrate}edg-es; interspaces thin; osculaat iri'eou- lar intervals; centralcavity of thetubefilledwith brokenshells,corals, or masses ^{of clay,} or sometimes entirely empty/'"

The

type of this so-called Sf7'omatoj)ora proves to be a portion of the living-

chamber

of a cephalopod {OrthoceraH or Endoceraii)^ which has

become

encrusted

by

successive layers of species of bryozoa belonging- to the g'eruis CeranioporeJla.

Some

of these layers are of Ceraiiiopo'Mladlstiiirfa Ulrich,others are of C.grainih/m-nillfordensls (.Fames), while vertical sections indicate that C. ohioeni'tis is also pres- ent.

The

"serrate edges'"' of the ''laminae" are seen only in vertical sections or fractures. This toothed appearance ^iscaused by thepro- j(»cting lunaria of each zoarial layer.

The

basallaminaof thesucceed- ing layer touches only a few of these projectigg |)oints, the others remaining free.

The

"oscula" at irregular intervals are simply the clay-filled borings of

worms

or other burrowingorganisms.

The

type

came from

the

Eden

shale at Cincinnati, t)ut similar speci-

mens

^of incrusting Cerainoporella can be found throughoutthe Cin- cinnatian rocks.

STROMATOPORA LUDLOWENSIS

^James.

Stroviatoporii ln(llowfin.ils Jame«, Jour. Cincinnati Soc.'Nat. Hist., VII, 1884, p.

140,pi. VII, fiKf^. 7, 111.

—

^{J. F. James,} Jour. Cincinnati ^!oc. Nat. Hist., XV,

1892, _f). 91.

"Coenosteuni varying in outline and size 4i by ^{8 inches} and 2^

inches thick; sometimes parasitic, and then varying from ^{one-tenth to} three-tenths of an inch thick; laminse irregular, undulating, fi-om 4to

t) in one-tenth of an inch, including interspaces; transverse sections

show numerous

circular or oval oscula (?) irregularly distributed;

surface irregularand rough, showing

numerous

minute pores and a greaterorless

number

of oscula."''

The

"coenosteum" of this species instead offorminga tubularstruc- tureas inthe preceding,

grew

^intosolid masses. Moreover,

two

sets of "oscula" are recognized

by

itsauthor, oneof

them

doubtful.

The

type specimen ^is anirregular, solid

mass composed

of succes- sively incrusting layers of Ceramoporella, O. distmcta Ulrich and O.

«AbridgeddescriptiojibyJ. F.James,Jour. CincinnatiSoc. Nat.Hist., XV,1892, p. 89.

''Abri(lge(M('Scriptii)ii l»yJ. ^1"'.Junics, Jour. CincinnatiHoc. Nat. Hist., X\', 1892, p. 91.

PEOCEEDTXOS OF THE NATIONAL

MUSElBf.

girinvlosa-milfordensis(James)being'the speciesobserved.

The

lurgor and doubtful sot of "oscula'' is

made

up, as in <S'. tiihuhirlx. of clay- tilled burrows, while the smaller set is

composed

of the

mouths

of the zocecia themselves.

The

species of Ceramoporella

seem

to have bothered

Mr. James

con- siderably. This isespeciallv trueof C. (Ilsthicta, thetype lotsof no

less than seven of his species containing- uncpiestionable examples of this

common

^form.

INDEX OK James's names."

AlectovexillsJames.

OdlopornmilfordenshJame.i. (See Cernmoporella (jraiiiilosii-nii/fordfiisls.)

CernmoporaalternataJames. (SeeCuioclenia(iltennitvDi.

)

CeramoporafbeaniJames. (SeeP(fJe.^cli(ir(iheani.) Ceramoporaconcentrica Jame.s.

Ceramopora ?irregularisJames.

Cerataopora nirhohoniJames.

CeramoporaradiataJames.

Ceramopora^ir}iitt'iJavaes. (See Ceramoporellau'hitei.)

Chuetetes })arrandel fJames (notNicholson). (SeeHemiphra<iuiit uhittirJdi.) Chaetete.t ?calyeidaJames. (SeeAxpidoporacah/cula.

)

CfiaetetexdncinnatiensisJames. (SeeMontlcuUporaCincinnatiensi.t.

)

Chaetetesfclathratulus"James. (See Escharoporu^jxivonia.)

Chaetetes clavacoidesJames. (See Leptotrypa claracoidea.) Chaetetes clavacoidensJamei^. (SeeLeptotri/padavaroidea.) Chaetetes crustiUatusJames.

Chaetetes discoideaJames. (SeeAmplexoporadiscoidea.

)

Cliaetetes gracilisJames. (SeeBythoporn gracilis.

)

Chaetetes lycopierdon(Say)James.

Chaetetes Igropodiies (Vanuxem)James.

Cltaetetes rneekiJames. (See Bythopora meeki.) Chaetetes jniniUusJames. (SeeBythoporaarctijxmi.)

ChaetetesfonealliJames. (See CalloporaonadH.

)

Chaetetes petropolitaniis(Pander) James.

Chaetetes sid/rotKndusJames.

ChaetetesturhinatumJames.

Chaetetes rariarisJames. (See Hatostotna rarianx.) DekayialuaculataJames.

Escharinaf distoriaJames. (See Rhiiioporarerrncuxa Hall.) Flstidipora^{.^} inultiporaJames.

FistuliporaoweniJames. (See Coelor/iinnmmii.) Fistulipora silurianaJames.

Ileloporaapproxim.ataJames.

Ilelopora dendriiiaJames. (See Bythoporadettdrina.) HeloporaJiarrisiJames.

IleloporameekiJames. (See Dicranoporameeki.) IleloporapurvulaJames. (See ByiJiopora parrula.

)

Ilelopora tennisJames. (SeeArfhroslylusteuni.'i.

)

llippolhoa delicatidaJames. (SeeStotnalopora delicatida.) LichenaliacalyculaJames. (SeeAspidopora caiynda.

)

(ITliespeciesdiscussed in thispaperarearranged alphabeticallyandthisindex is

given inordertofacilitatethe tindingoftheJames^{species as}now placed.

Nom^. JAMES

TYI'ES

OF

niiYO'/OA—BASSLKR.

59

Monotrypaundidald-liimhjiherini .]. F. James.

}fonticiiUporacaliiculuJames. (SeeAspidojxn-ii rnh/rnln.) Motitlndiporac'tn<'hiualieiisi>iJames.

Monlictdiporadav<(coide(iJames. (See Lf'pt<)tri//)achirncoidi'd.) Montieiillpora cL'avelandiJames.

.][(tiilicullporarlhdonensitiJames.

Moidicidijioraco)nmnnisJames. (See Calloporaorieidli-i-Diiiiuiuils.)

MontiaUipora rrushdataJames.

MoidicuUporadiscoideaJames. (SeeAmplexoporadisroidpd.) MonticidiporadycheiJames. (SeeSlig)natelladychei.

)

Mordicidiporaerrerdrica James. (SeeAspidoporaeccentncd.) MordiculiporafalesiJames. (See Prasojxmifalesi.)

Mont'iculipora fusiformisJames(not Whitfield). (SeeLioclemelln i^uhfuififormlx.) MonticidiporagrarilisJames. (SeeBythoporayraeilis.

)

Moulicidipurahoxpltuli'ivar.neglectaJames.

MonticidiporakentuckensixJames. (See Callopora multitabnkda.) MonticuUporalenxJames(notMcCoy). (See Calloporellacircidarin.) Monticulipora meekiJames. (See Bythoporameeki.

)

MonticuUporaohioensisJames. (See Dekayellaulrichi.

)

MonticidiporaonealliJames. (See Calloporaonealli.) Mordicidijiorapapillata (McCoy) James andJames.

Monticuliporapetasifonnis var. «'e/c/(/James. (See Amplexopora,petasiformis welchi.

)

MonticfidiporasubcylindricaJ. F. James. (SeeAmplexopora iiliom.

)

Monticulipora turhinataJames.

Monticidipora uudidata var. hfimisplirrira J. F.James. (See Monotrypa imdulata.

hemispherica.)

MonticidiporavariantJames. (See Batostomavarians.₎ MonticuUporawhitfieldiJames. (SeeHemiphragmawhitjieldi.

)

3fonticulipora wortheniJames. (SeeHomotrypawortheni.)

Monticulipora(Chaetetes) meekiJames. (SeeBythoporameeki.) Monticulipora. {Chaetetes)variansJames. (See Batostoma rarians.) MonticuUpora (Chaetetes)ivhitfieldiJames. (See Hemiphragmawliitfieldi.)

MonticuUpora {Dekayia) macidutaJames. (See Dekayia maculata.) Monticulipora [Fistidipora)aUernataJames. (See Coeloclemaalternatnm.)

Monticidipora {FistuUpora) milfordensis James. (See Ceramoporella granulosa mil- fordensis.

)

Monticulipora {FistuUpora) nicholsoniJames.

MonticuliporaoweniJames. (See Coeloclemaoweni.)

MonticuUpora {Heterotrypa)circularisJames. (SeeCalloporellacircularis.) Monticulipora {Heterotrypaf) cleavelandiJames. (See Monticuliporacleavelandi.) Monticulipora {Heterotrypa) cUntonensisJames.

Monticulipora. {Heterotrypa?) eccentricaJames. (SeeAspidoporaeccentrica.) Monticidipora {Heterotrypa) onealli ?var.communis James. (See Callopora onealli communis.)

MonticuUpora {Heterotrypa) winchelUJames. (See Prasoporahospitalis.) Monticidipora(Monotrypa) dycheiJames. (SeeStigmatella dychei.)

Monticulipora {Monotryjm?).^ubfusiformisJames. (See LioclemeUasubfusiformis.) Monticulipora {Monotryjm)welchiJames. (See Ample.coporapetasiformis welchi.)

Monticulipora(Monotrypa) wortheniJames. (SeeHomotrypawortheni.) Ptilodictya.acuminataJames. (See Escliaropora acuminata.

)

PtilodictyaantiquaJames. (See Eurydictyamultipora.

)

Ptilodictya? cincinnatimsisJames. (See ArthroporacincinnaUensis.

)

PtdodictyacleavelandiJames. (See Arthropora cleavelandi.

)

PtilodictyacVmionensis .Tames. (See Ptilodictyanodosa.)

60 PROCEEDINGS OF THE NATIONAL MUSEUM.

^vol.xxx.

PtilodictyaduhiaJames. (SeeArthroporadeavelandi.₎ PtilodictyafimhriafaJames. (SeePhxnoporafimbriata.) PtilodictyaJfexKonaJames. (SeeSlictoporeUa fle.ruom.) Ptilodictyagrahami James. (See Arthropora deavelandi.) PtilodictyagranulosaJames. (See Rhinidictyaparallela.

)

PtilodictyahilliJames. (SeeEscharoporahilli.

)

Ptilodictya.kentuckyenm James. (See ArthroporaIrntuckyrnsis.) PtilodictyanodosaJames.

PtilodictyaparallelaJames. (See Rhinidictyaparallela.

)

Ptilodictya2)latyj>hyllaJ&uies. (SeePhxnoporaexpansa.) Ptilodictya.plnmaria James.

PtilodictyateresJames. ⁽SeePtilodictyanodosa.

)

PtilodictyaivelshiJames.

Sagenella.striataJames.

Stictopora clathratulaJames. (See Escharopora.pavonia.) Stromatopora?lichenoidesJames.

StromatoporaludlowensisJames.

StromatoporatubularisJames.