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REVATIO AA

RIPTION OF A NEW GENUS (PRYPANOSTOMA)

OF THE

mily en and of Forty-five New Species.

TION OF TEN ” "ds OF UNIONIDE
- OF THE UNI "Bs.

[PTION OF TWO NEW SPECIES OF EXOTIC

Se OF A NEW GENUS (GONIOBASIS)
OF THE

Pui MELANIDE, and Eighty-two Species.

NON OF ELEVEN NEW SPECIES OF MELANIDE
OF THE UNITED STATES.

BY

ISAAC LEA, LL. D.

PHILADELPHIA:
S om

RRIHEW &é THOMPSON, PRINTERS,
Lodge St., corner of Kenton Place.

1862.

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Extfasts. S oe ewes the Academy of Natural Sciences of Philadelphia, of papers,
By Isaac Lea.

te es aN

SS Description of a New Genus, (TRYPANOSTOMA) of the Family MELANIDZ,
and of forty-five New Species.
BY ISAAC LEA.
Read April 15th, 1862.
Family MELANIDZ..

Genus TryPaNostoma.*—Testa conica, apertura rhomboidea, inferné sub-

canaliculata. Labroexpanso. Columella levis} inferné contorta. Operculum
corneum, ad spiram pertinens.

The enormous number of species in the genus Melania, has made it very de-
sirable to eliminate as many as possible, by founding new genera, when well-
characterised groups can be established. With this view, I proposed, in the
Proceedings of the Academy in April last, the genus Strephobasis. The genus

( “now proposed, under the name of Zrypanosioma, will include all the well-known
MManie with an auger-shaped aperture, the type of which may be considered
Mr. Say’s Velania canaliculata, a common and well-known species from the basin
of the Ohio River. It will include a number of large species, indeed, nearly all
of the large and ponderous species of the United States. Many new ones will
be found in this paper. Objections may be raised against increasing the num*
4 ber of genera without the aid of the examination of the soft parts. But there
is no validity in this objection, from the fact, that in the present condition of
j the Science of Malacology, we are becoming acquainted with a vast number of
new and interesting forms, without the hope, at present, of seeing the soft
portion of the animals. These may, at some future time, and, no doubt, will
be examined and carefully described by Zoologists, who may dwell near the
waters where these numerous and highly developed species reside. Until this
takes place, we can only group them upon the characters which are presented

by their outward hard portions, which are accessible to us now.

In proposing this new genus, I am aware that European Zoologists have made
many genera and subgenera in this Family, but none have made groups of our
numerous species by which they can be properly divided. They have mixed

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them up, notwithstanding all the time and care they have bestowed upon them,
in a manner so as to make great confusion. Mr. Swainson, in his “ Treatise on
Malacology,” proposed a subgenus of Melania under the name of Ceriphasia,
and gives a figure, page 204, (C. sulcata,) stating it came from Ohio. It is
evident, on looking on this figure, that it does not represent any Ohio species,
neither in the aperture nor in the revolving ribs. Dr. Gray and the Messrs.
Adams* adopt the genus, and the latter give a figure (pl. 31, fig. 6) of canali-
culata, Say, as the type, which I do not think answers to the description or
figure of Mr. Swainson. Dr. Gray, in his excellent “List of the genera of Re-
cent Mollusca,” in the Proceedings of the Zoological Society, expresses a doubt
whether his Zelescopella may not be the same with Ceriphasia. Mr. Reeve, in
his beautiful work, “‘ Conchologia Iconica,” mixes may of our species in a man-
ner that does not admit of their being separated into groups; and Dr. Chenu
(‘Manuel de Conchyliologie”) groups together some very incongruously.
Many of our groups are empHatically American, and the divisions made by our
zoologists have not had the attention they deserve from European writers.
Thus, neither Dr. Gray, Mr. Reeve, nor the Messrs. Adams adopt Prof. Halde-
man’s genus Ltthasia, established so long since, and which is an easily recog-
nized group. Mr. Reeve puts the various species of that group into my genus
Jo to which they certainly do not belong, and Dr. Chenu puts part of them
there. The genus Amnicola, long since proposed by Gould and Haldeman, for
a very natural group of small shells, divided from Paludina, is not recognized
~|{ by Chenu or Reeve.

In a future paper I propose to define the groups into which our Melanide

seem naturally to divide themselves, adopting the well recognized genera
‘which have been established.

TRYPANOSTOMA DUX.—Testé carinati, pyramidatd, crassa, rufo-fuscescente ;
spira valdé elevaté; suturis paulisper impressis; anfractibus instar novenis,
planulatis ; apertura subgrandi, rhombic, intus pallido salmonii; labro
acuto, sinuoso; columella incrassaté et valdé contorta.

Hab.—Tennessee River, W. Spillman, M.D. Fox River, [llinois, J. Sampson.
Oostenaula, Rev. G. White. Tuscumbia, B. Pybas.

TrypanostoMA THORTONII.—Testi carinati, pyramidaté, subcrassi, cornea

* Messrs, Adams for the type of subgenus Juga give Buddii, Say. I am not aware
that Mr, Say described any Melanian under that name; and in Megara they give alveare,

Con, and basalis, Lea, as types, while they certainly belong to very different’ groups,
having very differently formed apertures.

3

vel vittat& vel evittat&; spira regulariter elevata; suturis parum impressis;
anfractibus instar denis, planulatis; apertura parviuscula, rhomboidea, intus
albida; labro acuto, valdé sinuoso; columelli inferné incrassata et valdé
contorta.

Hab.—Tuscumbia, Ala., L. B, Thorton, Esq. and Rev. G. White. Chatta-
nooga, Tenn., J. Clark.

TrypanosToMa Troosti.—Testa carinata, conoided, valdé inflata, vel luteo-
cornea yel yiridescente, vel vittata vel evittat ; spir& elevata; suturis valdé et
irregulariter impressis; anfractibus instar novenis, subimpressis, interdum
canaliculatis; aperturi grandi, rhomboidea, intus albida, interdum vittata ;
labro acuto, sinuoso; columellé inferné incrassat4 et valdé contorta.

Hab.—tTennessee, Prof. G. Troost. Florence, Ala,, Rev. G. White. Ooste-
naula River, Ga., Bishop Elliott; and Fox River, near New Harmony, Indiana,
J. Sampson.

TRYPANOSTOMA INCURVUM.—Testa carinata, conoidea, subtenui, cornea; spira
subelevaté; suturis regulariter impressis; anfractibus octonis, planulatis, in-
ferné obsoleté striatis; apertura parviuscula, rhomboidea, intus albida; labro
acuto, sigmoideo; columella vaidé contorta,

Hab.—Florence, Ala., Rev. G. White.

TRYPANOSTOMA POSsTELLI.—Testa carinaté, pyramidata, subcrassa, cornea ;
spira regulariter conici; suturis valdé impressis; anfractibus octonis, vel
planulatis vel impressis, ultimo parviusculo; apertura parvissimd, rhomboidea,
intus albida; labro acuto, valdé sinuoso; columella inferné incrassata et valdé
contorté.

Hab.—Tennessee River, J. Postell. North Alabama, Prof. Tuomey.

TRYPANOSTOMA TUoMEYI.—Testa carinata, crassiusculd, elevato-conica, tene-
broso-fusca ; spira elevato-conicd; suturis vix impressis; anfractibus instar
denis, planulatis, inferné obsoleté striatis; apertura parva, rhomboidea, intus
tenebrosi; labro acuto, sinuoso; columella paulisper incrassaté, et valdé
sontorta.

.Hab.—North Ala., Prof. Tuomey. Florence, Ala., Rev. G. White.

TRYPANOSTOMA FLORENCENSE.—Testa subcarinata, turrité, subcrassa, tene-
broso-fusca vel luteo-cornea, obsoleté vittata vel evittata ; spira valdé elevata ;
suturis leviter impressis; anfractibus instar undenis, paulisper convexis ; aper-
tura parviusculd, rhomboidea, intus ceruleo-alba; labro acuto, sinuoso ; colu-
mella albida et valdé contort.

Hab.—Florence, Ala., Dr. Spillman. Tuscumbia, L. B. Thornton, Esq.

4

TryPaNnostoma CLarku.—Testa obtusé carinata, conica, subcrassa, tenebroso-
olivaé; spira elevaté ; suturis valdé impressis ; anfractibus instar octonis, planu-
latis; aperturdé parviusculaé, rhomboided, intus albid&; labro acuto, sinuoso ;
columella alba et contorta.

Hab.—French-Broad and Tellico Creeks, Tenn., J. Clark and Prof. Christy.
Florence, Ala., G. White. Noxubee River, Miss., Dr. Spillman; and Clinch
River, Tenn., Dr. Warder. Coosa, Cahawba and Alabama Rivers, Ala., Dr.
Showalter.

TRYPANOSTOMA ALABAMENSE.—Testd carinata, crassiuscula, subfusiformi, tene-
broso-corned; spirad subattenuataé; suturis regulariter impressis; anfractibus
instar octonis, planulatis, inferné striatis; apertura parviusculé; rhomboidea,
intus albid&i; labro acuto, sinuoso; columella inferné incrassat&i et valdé
contorta.

Hab.—North Alabama, Prof. Tuomey. Florence, Ala., Rev. G. White.

TRYPANOSTOMA LIGATUM.—Testa carinata, fusiformi, subcrassa, inflata, nitida,
vittaté vel evittatd, luteo-oliva; spira obtusé conica; suturis impressis; an-
fractibus septenis, convexiusculis, ultimo pergrandi, ligata apud peripheriam ;
apertura grandi, rhomboided, intus obsoleté vittata; labro acuto, sinuoso;
columella inferné incrassata, ad basim rufo-maculata, valdé contorta.

Hab.—Tennessee, Prof. Troost. Cumberland, River, T. C. Downie. North
Ala., Prof. Tuomey. Ohio River at Cincinnati, U. P. James.

TrypanostoMA Pysasit.—Testi obtusé carinata, obtusé conica, solida, bi-
vitta, viridi-fusca ; spira obtusi; suturis valdé impressis; anfractibus instar
octonis, convexiusculis ; apertura parva, rhombica, intus alba et vittaté ; labro
acuto, valdé sinuoso; columella inferné incrassata et valdé contorta.

Hab.—Tuscumbia, Ala., B. Pybas.

TRYPANOSTOMA OLIVACEUM.—Test& carinata, subfusiformi, subcrassi, olivacea ;
spira subobtusdé; suturis impressis; anfractibus instar octonis, planulatis ;
apertura subgrandi, rhomboidea, intus albid4; labro acuto, sinuoso; columella
inferné incrassata et valdé contorta.

Hab.—Tombigbee River, Mississippi, W. Spillman, M. D.

TRYPANOSTOMA MONILIFERUM.—Test& tuberculaté, crassi, pyramidata, vel
luteola vel virenti, vittat& vel evittata; spiré elevato-pyramidata: suturis
irregulariter impressis; anfractibus instar denis, planulatis, inferné striatis,
interdum obsoleté sulcatis, ad peripheriam tuberculatis; apertura subgrandi,
rhomboidea, intus vel albid4 vel salmonid, plerumqué bivittaté; labro acuto,
yaldé sinuoso; columell& inferné incrassata et valdé contorta.

5

Hat.—Tennessee, Prof. Troost and Mr. Anthony. Florence, Ala., Rev. G.
White, Mr. Pybas and Mr. Thornton. Cumberland River, Dr. Powell. Ohio
River, near the mouth, in Illinois, J. Donaldson. New Harmony, Indiana, Mr.
Carley and Mr. Sampson. Warrior River, Ala., Prof. Brumby.

Trypanostoma Lewisiu.—Testa sulcata, subtenui, elevato-conica, tenebroso-
fusca vel cornea, vittata ; spird attenuata; suturis paulisper impressis; an-
fractibus instar undenis, planulatis; aperturi parva, subrhomboidea, intus
yittata ; labro acuto, paulisper sinuoso; columella inferné paulisper incrassata
et valdé contorta.

Hab.—Peoria, Illinois, J. Lewis, M.D.

TRYPANOSTOMA MORIFORMI.—Testa sulcata, subcylindracea, solida, uno-vittata,
cornea, spira obtusé conici; suturis impressis; anfractibus instar novenis,
impressis, canaliculatis ; apertura parviusculd, rhombica, intus alba et uno-
yittata ; labro acuto, valdé sinuoso; columellé inferné incrassata et valde
contorta.

Hab.—Oostenaula River, near Rome, Ga., Rev. G. White. Tenn. River, Dr.
Spillman. Tuscumbia, Ala. B. Pybas.

TRYPANOSTOMA VIRIDE.—Testd subsulcata, subcrassa, subfusiformi, olivacea ;
spira obtusé conica; suturis valdé impressis; anfractibus septenis, convexis,
ultimo subcanaliculato; apertura subgrandi, rhomboided, intus vel purpured
vel albida; labro acuto, sinuoso; columella inferné incrassaté et paulisper
contorta.

Hab,—Tennessee, Prof. Troost.

TeypaxostoMa SHOWALTERU.—Testa striata, interdum levi, valdé exertd,
crassa, subcylindracea, vel corned vel fusca, interdum inferné vittata; spira
yaldé elevata; suturis valdé impressis; anfractibus novenis, subplanulatis ;
apertura parva, rhomboided, intus vel albida vel salmonia; labro acuto, param
sinuoso ; columella inferné incrassata et valdé contort.

Hab.—Cahawhba River, Ala., E, R. Showalter, M. D. Tuscaloosa, Ala., Dr.
Budd. Oostenaula River, Ga., Rev. G. White and Bishop Elliott.

TrypanostoMaA ANTHONYI.—Testi rugoso-striata, pyramidata, crassa, luteo-
olivacea ; spira elevati; suturis rugoso-impressis; anfractibus instar novenis,
planulatis ; apertura subgrandi, rhomboided, intus albii; labro acuto, sinuoso ;
columella inferné incrassata et valdé contorta.

Hab.—Tennessee, J. G. Anthony. Warrior River and Yellowleaf Creek, Ala.,
Dr. Showalter. Fox River, Indiana; J. Sampson.

6

TRYPANOSTOMA STRIATUM.—Testa striatd, subulari, subtenui, corned ; spiré
elevata; suturis impressis; anfractibus ‘instar octonis, convexiusculis, ultimo
parviusculo; apertura parva, subrhomboided, intus albidi; labro acuto, valdé
sinuoso, expanso; columella paulisper incrassaté et valdé sinuosd.

Hab.—Florence, Ala., B. Pybas.

TryPAaNosToMA HARTMANII.—Testa levi, interdum obsoleté canaliculata, solida,
virente vel rufo-fuscescente, regulariter conica, vittataé vel evittata ; spiri pyra-
midaté; suturis regulariter impressis; anfractibus instar novenis, conyexius-
culis; apertura parva, rhomboided, intus vel alb4 vel salmonii; labro acuto,
sinuoso; columella inferné incrassata et valdé contorta, ‘i

Hab.—Cahawba and Coosa Rivers, Dr. Showalter. Warrior River, Ala-

bama, Dr. Budd. Knoxville, J. Clark. Tenn. River, Ala., Dr. Spillman.

TRYPANOSTOMA JAyiI.—Testd levi, subpupoided, crassf, nitidd, rufo-fusea ;
spira obtuso-conic4; suturis valdé impressis, anfractibus octonis, subtumidis,
ultimo subgrandi; aperturé parva, rhomboided, subangusté, intus pallido-fusca ;
labro acuto, sinuoso ; columella inferné incrassata et contorta.

Hab.— , Alabama? J. CO. Jay, M. D.

TRYPANOSTOMA SPILLMANII—Testa levi, regulariter conic’, tenebroso-oliva ;
spira elevata; suturis regulariter impressis; anfractibus instar novenis, planu-
latis ; apertura parviusculé, rhomboided, intus albida, interdum yittata ; labro
acuto, sinuoso; columella alba et valdé contorta.

Hab.—Noxubee River, Miss., W. Spillman, M.D. ; and Tenn., J. Clark.

TrypanostoMA Curisty1.—Testé levi, elevato-conicé, crassiusculd, cornea,
raro vittataé; spira valdé elevat&é; suturis regulariter impressis ; anfractibus
instar denis, parum convexis; aperturé parva, subrhomboided, intus albida ;
labro acuto, sinuoso; columella alba et contorta.

Hab.—Cane Creek, Tenn., Prof. D. Christy.

TRYPANOSTOMA LABIATUM.—Testa levi, acuto-conica, subcrassa, nitidé, virido-
corne4; spira attenuata, mucronata ; suturis regulariter impressis ; anfractibus
instar denis, convexiusculis, ad apicem carinatis, ultimo subgrandi; apertura
parviuscula, rhomboided, intus albida; labro acuto, juxta marginem incrassato,
yaldé dilatato, valdé sinuoso; columella albidd, inferné incrassata et valde
contorté.

Hab.—Big Miami River, Ohio, J. Clark.

TryPaNnostoma WauiTEI.—Testa levi, attenuato-conica, crassiuscula, tenebro-
so-cornea ; spira valdé elevata; suturis regulariter impressis; anfractibus

7

instar novenis, convexiusculis; apertura parva, subrhomboidea, intus albida ;
labro acuto, sinuoso; columella inferné incrassata et contorta.

Hab.—Lafayette co. and Marietta, Ga. Rev. G. White. Farland’s Creek,
Mississippi, Dr. Spillman; and Tenn., J. G. Anthony.

Trrpanostoma EsTABROOKI.—Testa levi, attenuato-conica, subtenui, cornea ;
spira valdé elevata, superné carinatd; suturis regulariter impressis; anfracti-
bus instar denis, convexis ; apertura parva, subrhomboidea, intus albida; labro
acuto, subsinuoso; columella alba et contorta.

Hab.—East Tennessee, President Estabrook and Bishop Elliott. Near Cleve-
land, Tenn., Prof. Christy ; and Monroe co., Tenn., J. Clark.

TrypanosToMA KNoxVILLENSE.—Testi levi, subulari, subtenui, pallido-cor-
nea ; spira attenuato-conicé, mucronaté; suturis regulariter impressis ; anfracti-
pus denis, convexiusculis, ad apicem carinatis, ultimo subconstricto; apertura
parya, subrhomboidea, intus alba; labro acuto, sinuoso; columelld inferné
incrassata et paulisper contorta.

Hab.—Knoxville, Tenn., Pres. Estabrook.

TRYPANOSTOMA ATTENUATUM.—Testa levi, subulari, subtenui, cornea; spird
attenuata; suturis impressis ; anfractibus novenis, vix convexis, ultimo parvo ;

apertura parva, rhomboided, intus albida; labro acuto, valdé sinuoso; colu-
mella vix incrassaté et contorta.

Hab.—Lafayette, Ga., Rev. G. White ; and Tenn., Dr. Hartman.

TRYPANOSTOMA SUBULZFORME.—Testa carinati, subulari, subtenui, cornea ;
spira attenuato-conica; suturis valdé impressis; anfractibus denis, inferné
planulatis, superné carinatis; apertura parva, subrhomboidea, intus albida;
labro acuto, sinuoso ; columella paulisper incrassata et contorta.

Hab.—Knoxville, Tenn., Prof. Troost and W. Spillman, M. D.

TRYPANOSTOMA TORTUM.—Test& substriata, conic4, cornea, subcrassa; spird
subobtuso-coniea ; suturis valdé impressis; anfractibus septenis, planulatis ;
apettura subgrandi, subrhomboided, intus albida; labro acuto, vix sinuoso ;

columella valde incurvataé, superné paulisper incrassata, inferné incrassata et
valde contorta.

Hab.—Uchee Bar, below Columbus, Ga., J. Lewis, M. D.

TRYPANOSTOMA PALLIDUM.—Testa levi, attenuato-conic4, subcrassa, pallido-
cornea; spird valde elevata ; suturis valdé impressis; anfractibus undenis, con-
vexiusculis, superné subgeniculatis; aperturaé parviuscula, subrhomboided,
intus albi; labro acuto, sinuoso; columella alba et valdé contort4.

Hab.—Niagara Falls, New York.

8

TRYPANOSTOMA PARVUM.—Testa levi, crassiuscula, conoided, cornea, vittata
vel evittata ; spird conoided; suturis regulariter impressis ; anfractibus octonis,
planulatis; aperturé parva, rhomboided, intus albidi; labro acuto, paulisper
sinuoso; columella inferné paulisper incrassata et contorta.

Hab.—Knoxville, Pres. Estabrook; and French Broad River, East Tenn., J-
Clark.

TRYPANOSTOMA MODESTUM.—Testa levi, conicd, subtenui, virido-cornea ; spira
subelevata ; suturis linearibus; anfractibus instar septenis, convexiusculis,
ultimo subcompresso; apertura parviuscula, subrhomboided, intus czruleo-
alba; labro acuto, sinuoso, expanso; columell& inferné paulisper incrassata et
contorta.

Hab.—Chilogita Creek, Blount co., Tenn., J. Clark.

TRYPANOSTOMA SIMPLEX.—Testa levi, conica, subcrassa, luteo-olivacea ; spira
subeleyatéi; suturis paulisper impressis; anfractibus octonis, subconvexis,
ultimo subconstricto; apertur& parva, constrictaé, rhomboidea, intus albida ;
labro acuto, sinuoso; columella inferné incrassata et contort.

Hab.—Cincinnati, Ohio, T. G. Lea.

TRYPANOSTOMA MINOR.—Testa levi, obtusé conoided, subcrassa, luteola, vit-
tata; spira obtuso-conoided; suturis valdé impresiss; anfractibus septenis,
convexiusculis, ultimo grandi; apertura grandi, subrhomboided, intus alba,
interdum vittaté; labro acuto, sinuoso; columella incurva, inferné incrassata
et paulisper contorta.

Hab.—Tennessee, Prof. Troost.

TRYPANOSTOMA PUMILUM.—Testa levi, nitid4, conoided, subsolida, luteo-
virescente, bivittataé; spira obtuso-conoided ; suturis valdé impressis; anfrac-
tibus septenis, subconvexis, ultimo pergrandi; apertura subgrandi, rhomboidea,
intus albidaé et trivittata; labro acuto, sinuoso ; columelli inferné incrassata
et valdé contort.

Hab.—Tennessee, Prof. Troost.

TRYPANOSTOMA BIVITTATUM.—Testa levi, conoided, subcrassa, lutea, bivittata ;
spira obtuso-conoided; suturis valdé impressis ; anfractibus septenis, subcon-
vexis, ultimo grandi; apertur& subgrandi, subrhomboided, intus alba, bivit-
tata ; labro acuto, paulisper sinuoso; columell& inferné incrassata et valdé
contorta.

Hab.—Tennessee, Prof. Troost.

TRyPANOSTOMA VANUXEMII.—Testa levi, conoided, flavidA, vel bivittataé vel
evittata ; spir&é obtuso-conica; suturis impressis; anfractibus senis, conyexius-

9

eulis; apertura parviuscula, subrhomboidea, intus albida ; labro acuto, sinuoso ;
columella inferné incrassata et valdé contorta,
Hab.—South Carolina, Prof. L. Vanuxem.

TRYPANOSTOMA TRIVITTATUM.—Testi levi, subfusiformi, subtenui, nitida, oli-
yacea, trivittata; spira conici, mucronata, ad apicem carinati; suturis line-
aribus; anfractibus octonis, planulatis, ultimo subgrandi; apertura’ subgrandi,
rhomboidea, intus vittata ; labro acuto, sinuoso; columella paulisper incrassata
et incurva.

Hab.—Tombigbee River, Mississippi, W. Spillman, M. D.

TRYPANOSTOMA TROCHULUS.—Testai levi, trochiformi, valdé tumida, lutea,
infra unifasciati; spira valdé obtusi; suturis impressis; anfractibus senis,
superné planulatis, inferné inflatis; apertura grandi, rhomboidea, albida et
unifasciaté ; labro acuto, sinuoso; columelli inferné incrassataé et valde
contorta.

Hab,—Holston River, Tenn., Prof. G. Troost.

TrypaNnostoma SycamoréNnsze,—Testa plicata, conic, luteo-cornefi, subcrassa;
spir& attenuatd, mucronataé;-suturis impressis; anfractibus undenis, convexi-
usculis, superneé carinatis,in medio plicatis ; apertura parviusculi, rhomboidea,
intus albidi; labro acuto, sinuoso; columell4 incurva, inferné incrassata et
contorta.

Hab.—Sycamore, Claiborne co., H. Tenn., J. Lewis, M. D.

Trypanostoma CHAKASAHAENSE —Testi levi, conica, fusco-virente, subtenui,
bivittata ; spira subattenuati; suturis valdé impressis; anfractibus instar oc-
tonis, convexis, superné carinatis; apertura parva’, rhombica, intus alba et
vittata ; labro acuto, sinuoso; columell& incurva, inferné incrassata et valdé
contorta.

Hab.—Chakasaha River, Ala., Wm. Spillman, M. D.

TrypanosToMA TENNESSEENSE,—Testi levi, obtusé conici, valde inflata, sub-
crassa, tenebroso-fusca; spira brevi, valdé obtusi; suturis impressis ; anfrac-
tibus instar denis, convexis; aperturi’ magni, rhomboided, intus tenebrosa ;
labro acnto, expanso, inflecto et valdé sinuoso; columella interné valdé incras-
3at& et contorta.

Hab—Tenn., Prof. Troost, Lebanon co., Tenn., J. M. Safford,

TeyraNostoma Knoxense.—Testa levi, conici, vel ferrugined vel vittata,
subecrass’ ; spira subelevati, mucronata; suturis impressis; anfractibus octo-

nig, convexiusculis, superné carinatis; apertura parva, intus vel albida vel

2

10

fusca; labro acuto; sinuoso, expanso'; columelli paulisper incrassata et
contorta.
Hab.—Flat Creek, Knox co., Tenn., Prof. D. Christy.

TRYPANOSTOMA CANALITIUM.—Testi canaliculata, conica, crassiuscula, cornea,
obsoleté vittat&; spiri’ regulariter conic’, subelevati, ad apicem bivittata ;
suturis impressis; anfractibus planulatis; imstar septenis, ultimo canaliculato ;
apertura parva, rhomboidei, intus vel alb& vel salmonia et vittata ; labro acuto
et sigmoideo; columella contort, ad basim recurva,

Hab.—Yellowleaf Cr., Ala., E. R. Showalter, M. D.

Descriptions of Ten new species of UNIONIDZ of the United States.

BY ISAAC LEA.
[Read April 22d, 1862.]

Unto GRANDIDENS:—Test4 valdé tuberculata, obliqua, ad umbones inflata ;
valvulis crassissimis, anticé crassioribus; natibus valdé tumidis terminalibus-
que ; epidermide fusca ; dentibus cardinalibus pergrandibus, percrassis corruga-
tisque; lateralibus crassis, sublongis, obliquis et valdé corrugatis; margarita
alba et iridescente.

Hab.—Near Hot Springs, Arkansas, Byrd Powell, M. D,

Unio sprciosus.—Test& omnino tuberculata, feré granulaté, quadrangulari,
valde compress4, ad latere planulat&, subequilaterali, posticé subbiangulata et
emarginata, anticé rotundat& ; valvulis subcrassis, antice paulisper crassioribus ;
natibus subelevatis, ad apices acuminatis et elegantissime perundulatis ; epi-
dermide viridi-lute4, substriat4, vel obsoleté radiata vel eradiata, submicanti;
dentibus cardinalibus subgrandibus, compressis, obliquis, erectis, striatis, in
utroque valvulo duplicibus ; lateralibus rectis, sublongis obliquisque ; margarita
argented et iridescente.

Hab.—Colorado River, near Lagrange, Texas, Prof. Forshey ; and Leon Oo.,
Texas, Lieut. E. F. Beale.

Unto Lers.—Testai levi, quadri, subcompressi, valdé inzquilaterali, pos-
ticé emarginati, anticé rotundati, valvulis subcrassis, anticé crassioribus ;
natibus subprominentibus, feré terminalibus; epidermide straminea, eradiata ;
dentibus cardinalibus subgrandibus, erectis striatisque ; lateralibus curtis, rec-
tis crassisque, in utroque valvulo duplicibus; margarita alb4 et paulisper iri-
descente.

Hab.—Hrie Co., Michigan, G. B. Leib, M. D.

11

Unio GrruarpTm.—Testa subsulcata, elliptica, subcompressi, sublenticulari,
inequilaterali, posticé obtusé angulata, anticé rotunda; valvulis crassiusculis,
anticé paulisper crassioribus ; natibus subelevatis ; epidermide straminea, radiis
capillaribus ; dentibus cardinalibus parviusculis, compressis, in utroque valvulo
duplicibus ; lateralibus sublongis, lamellatis subcurvisque; margarita alba et
valde iridescente.

Hab.—Chattanooga, Geo., Alexander Gerhardt.

Uyio Merceru.—Testa levi, laté elliptica, compress, posticé compressa et
biangulata, anticée rotundata, yaldé inzequilaterali ; valyulis subtenuibus ; nati-
bus prominulis ; epidermide tenebroso-fusca, subnitida, eradiata; dentibus car-
dinalibus parvis, tuberculatis striatisque; lateralibus prelongis subcurvisque ;
margarita purpurea et valde iridescente.

Hab.—Lee Co., Geo., Dr. Mercer.

Ustio ARKANSASENSIS.—Testa levi, ovato-obliqua, inequilaterali, posticé com-
pressi et obtusé biangulata, anticé rotunda; valvulis crassiusculis, anticé
paulisper crassioribus; natibus subelevatis; epidermide flavescente, obsoleté
radiata; dentibus cardinalibus parvis, striatis crenulatisque; lateralibus sub-
longis, subrectis subcrassisque ; margarita alba et valde iridescente.

Hab.—Near Hot Springs, Arkansas, Byrd Powell, M. D.

Unio Beate1.—Testa levi, elliptica, subcompressd, inequilaterali, posticeé
obtusé angulata, anticé rotundafi; valvulis crassiusculis, anticé crassioribus ;
natibus prominulis ; epidermide vel tenebroso-fusca vel nigricante, obsoleté ra-
diataé; dentibus cardinalibus parvis, compressis, crenulatis, acuminatis, in utro-
que valvulo duplicibus ; lateralibus prelongis, subcurvis, lamellatis; margarita
yel alba vel diluté salmonia et valdé iridescente.

Hab.—Leon County, Texas, Lieut. E. F. Beale, U.S. Navy. Rutersville,
Texas, Prof. Forshey.

Anoponta Lezonensis.—Testa levi, ellipticd, inflata, inequilaterali, posticé
subbiangulata, anticé oblique rotundata et paulisper sulcata ; valvulis tenuibus,
anticé paulisper crassioribus ; natibus prominentibus, tumidis, ad apices nodo-
sis ; epidermide fulgida, luteo-virente vel fuscescente, vel obsoleté radiata vel
eradiata ; margarita ceruleo-alba et valde iridescente.

Hab.—Leon County, Texas, Lieut. E. F. Beale, U. S. Navy.

Anoponta Witiiamsu.—Testa levi, ovato-oblonga, inflata, subzquilaterali,
posticé subbiangulata, anticé rotundata et paulisper sulcata; valvulis sub-
tennibus, anticé ad marginem incrassatis; natibus prominulis, inflatis, ad apices

12

undulatis ; epidermide vel viridi vel luteo-oliva, fulgida, obsoleté radiata vel
eradiata ; margarita ceruleo-alba et valdé iridescente.
Hab.—Potomac River, at the White House below Mt. Vernon, H. C. Williams.

Ayoponta Tryonu.—Testa levi, obliquo-ellipticé, subcompressa, sublenticu-
lari, valdé ineequilaterali, posticé subbiangulari, anticé rotundati; valvulis
tenuibus; natibus prominulis, subcompressis, ad apices undulatis; epidermide
fulgida, vel virente vel fuscescente, obsoleté radiat&; margarit’ ceruleo-albA
et valdé iridescente.

Hab.—Schuylkill River, above Philadelphia, Delaware River, at League Isl-
and, G. W. Tryon, jr. Flemington, Con., Prof. Shepard. Westfield, Mass.,
Dr. Shurtleff; and Potomac near Chain Bridge, above Washington, Prof. Henry.

Descriptions of two new species of EXOTIC UNIONES and one
MONOCONDYLEA,
BY ISAAC LEA.
{Read April 22d, 1862.]

Unio ParaMaTrensis.—Test4 crebré et leviter sulcata, elliptica, subinflata.
valdé inzquilaterali, posticé obtusé angulat&, anticé rotundat&; valvulis cras-
siusculis, anticé paulisper crassioribus; natibus prominulis, ad apices radiis
undulatis ; epidermidé tenebroso-fusca, nigricante, eradiata; dentibus cardi-
nalibus parvis, valdé compressis, obliquis, valvule dextre duplicibus; late-
ralibus prelongis, lamellatis subrectisque; margarita albé et valde iridescente.

Hab.—Paramatta River, New South Wales, Smithsonian Institution.

Unio Pazu.—Testa levi, obliqua, anticé inflaté, valde inequilaterali, posticé
acuto-angulata et attenuatd, anticé rotundata; valvulis crassiusculis, posticé
paulisper crassioribus ; natibus tumidis, subterminalibus ; epidermide olivacea,
obsoleté radiata et transversé late vittati; dentibus cardinalibus longis,
lamellatis, valdé obliquis corrugatisque; lateralibus prelongis, obliquis,
lamellatis corrugatisque; margarita vel alba vel cerulea et valdé iridescente.

Hab.—China. Sig. Patricio Maria Paz.

MonoconpL@A WHEATLEYI.—Testa levi, oblong’, subcompressa, valdé in-
equilaterali, anticé obliqué rotundat&, posticé truncata ; valvulis subcrassis,
anticé paulisper crassioribus ; natibus parvis, acuminatis, ad apices minutis-
simé undulatis; epidermide luted, nitid&, eradiaté; dentibus cardinalibus
parvis, erectis, in utroque valvulo uno-tuberculatis ; margarita alba et valdé
iridescente.

Hab.—River Tigris, Assyria, Rev. Mr. Beadle, by C. M. Wheatley.

13

Description of a New Genus (GONIOBASIS) of the Family MELANIDE and
eighty-two new Species.

BY ISAAC LEA,

(Read May 27th, 1862.]

Family MELANIDA.
cea Genus GONIOBASIS.*

Testa vel conica vel fusiformi. Apertura rhomboidea, inferne subangulata.
Columella superné interdum incrassata. Operculum corneum, ad spiram
pertinens.{

In my paper on the genus Trypanostoma, proposed by me, I mentioned the
importance of eliminating as many species as possible from Melania, which is
so enormously extended as almost to prevent the possibility of finding suitable
names for its species. In the Proceedings of the Academy, December, 1861, I
stated that Professor Haldeman’s genus Lithasia formed a very excellent group.
In working up a very large number of the family Melanida@, obtained from the
Southern and Western States, I have, notwithstanding the divisions which had
been made, found myself embarrassed with that form of aperture, which is
quite different from the auger-mouthed (7rypanostoma) species and the Lithasia,
to which latter they are most nearly allied. I mean those which usually,
though not always, have a slight thickening of the upper part of the columella
and no callus below, and which are also without the notch of Lithasia, although
subangular at base. In this subangular character they differ from Melania pro-
per, which are round or loop-like at the base. For this group I propose the name
of Goniobasis,t which will give us for our American Melanide the following
genera, all of them having spiral opercula:

Melania,§ Lam. Anculosa,Say. Jo, Lea. Lithasia, Hald. Schizostoma, Lea.
Strephobasis, Lea. Trypanostoma, Lea. Goniobasis, Lea. Amnicola, Gould and
Hald.

* Towa, angle, and Bazi, base.

+ This genus may be divided inte two groups, one embracing the conical, the other
the fusiform species, and these into smooth, plicate, carinate, &c.

t Adams’s Elimia takes in part of this genus.

2 Cuvier describes Melania as having long tentacula, the eyes being on the exterior
side about the third of the Jength. The eyes of Melania Virginica, Say, are at the base
of short tentacula. I very much doubt if we have a single species in the United States
which properly belongs to this genus, which Cuvier considered amarula as the type and
Lamarck asperata as the type.

14

They may be known by

Melania having a regular loop-form aperture.

Anculosa having a rounded aperture and a callous columella.

Jo having a greater or less elongate channel or spout at the base.

Lithasia having a callus on the columella above and below, and a notch at
the base.

Schizostoma having a cut in the upper part of the outer lip.

Strephobasis having a retrorse callus at base and usually a squarish aperture.

Trypanostoma having an expanded outer lip and an auger-shaped aperture.

Goniobasis having usually a subrhomboidal aperture, subangular at base and
without a channel.

Amnicola* having a round mouth and no callus.

GONIOBASIS OSCULATA.—Testa levi, pupeformi, subelevatad, subcrassa, luteo-
fused, quadrivittata ; spird subelevata ; suturis valde et irregulariter impressis ;
anfractibus septenis, convexiusculis; apertura’ parva, constricta, subelliptica,
intus albida et vittata; labro acuto ; columella alba, inflecta, ad basim contorta
et subangulata.

Hab.—Coosa River, Alabama, .. showalter, M. D.

Goniozasis Brumbpy1.—Testa levi, attenuati, subtenui, cinerea, quadrivit-
tata; spira attenuata, ad apicem carinat&; suturis valdé impressis; anfracti-
bus instar octonis, convexiusculis; apertura parva, subrhomboidea, intus
albid& et quadrivittata; labro acuto; columella inflecta, ad basim obtuse
angulata.

Hab.— Alabama, Prof. Brumby.

Goniozasis GRosveNoRiI.—Testi levi, subattenuata, tenui, cornea, fulgida,
evittata; spiri subattenuaté, mucronata, ad apicem carinata; suturis regu-
lariter et valdé impressis; anfractibus octonis, convexis; apertura parva, sub-
rotunda; intus albid&; labro acuto, paulisper sinuoso; columella inflecta,
tenui et contorta.

Hab.—Fox River, Illinois, H. C. Grosvenor; and Quincy, Ohio, J. Clark.

GonioBasis paRvA,—Testa levi, conicé, tenui, cornea, evittata; spira sub-
elevaté, mucronati; suturis impressis; anfractibus septenis, planulatis; aper-
turd parviuscula, intus albidi, subrhomboideai; labro acuto et sinuoso; colu-

mella inflecta et paulisper incrassata.
Hab.—Georgia, Right Rev. Stephen Elliott.

* Amnicola, although much like Paludina, is more nearly allied to the Melanide. The
operculum is spiral, and therefore very different in this character from Paludina

15

GoNIOBASIS SPINELLA.—Testa levi, valdé attenuata, tenui, tenebroso-olivi,
evittata; spira valdé elevat’, mucronati; suturis regulariter impressis; an-
fractibus instar novenis, planulatis; apertura parvissima, ovata, intus albida ;
labro acuto, paulisper sinuoso; columellé inflect& et inferné paulisper in-
erassata.

Hab.—Sycamore, Claiborne County, Tennessee, J. Lewis, M. D.

Gonrozasis EsTasrooxu.—Testa levi, conicd, subtenui, rufo-corned, evittata ;
spira attenuato-conicd, mucronaté; suturis impressis; anfractibus denis, con-
yexiusculis; apertura parviusculd, ovata, intus albid’; labro acuto, paulisper
sinuoso; columella inflecta.

Hob—Knoxville, Tennessee, Prof. Estabrook.

»
Gontogasis Pratriensis.—Testi levi, attenuato-fusiformi, tenui, olivacea,

fulgida&, quadrivittaté; spira elevaté, mucronata; suturis regulariter impres-
sis: anfractibus novenis, planulatis; aperturé submagnd, subrhomboidea,
intus albida’ et quadrivittataé; labro acuto et sinuoso; columella inflecti et
contorta.

Hab.—Big Prairie Creek, Alabama, E. R. Showalter, M. D.

Gontosasis EtowaHensis.—Test& levi, conoided, tenui, tenebrosa, bivittata ;
spira subelevati; suturis impressis; anfractibus septenis, convexiusculis ;
apertura submagn4, subrhomboided, intus tenebrosa et laté bivittati; labro
acuto et sinuoso; columella inflecta et valdé contorta.

Hab.—Etowah River, Georgia, J. Postell.

Goxtozasts Drayronu.—Testé levi, conoidea, crassiuscula, tenebroso-cas-
tanea, eyittaté vel obsolete vittata; spiri subelevata; suturis valdé impressis ;
anfractibus instar senis, convexis; aperturi parva, ovata, intus tenebroso-
fusea ; labro acuto, paulisper sinuoso; columella valdé inflecta et contorti.

Hab.—Fort George, Oregon, J. Drayton; also at Walla.

GONIOBASIS TENEBROVITTATA.—Testa levi, elevato-conica, subtenui, flaves-
cente vel vittataé vel evittata ; spira subelevata; suturis paulisper impressis ;
anfractibus planulatis ; apertura subgrandi, subrhomboidea, intus albidé; labro
acuto, paulisper sinuoso; columella paulisper inflecta.

Has.—Coosa River, W. Spillman, M. D.

Gostozasis Spit~manit.—Testa levi, fusiformi, tenui, virido-corned, fulgida,
evittata ; spiré obtusé conoidea; suturis linearibus; anfractibus instar senis,

planulatis, infra suturis subimpressis; apertura magna, rhomboided, intus

16

liaphana; labro acuto, paulisper sinuoso; columella paulisper inflecta et
tenul.
Hab.—Tennessee River, W. Spillman, M. D.

GoNIOBASIS FLAVA.—Testa levi, obtuso-conicé, subtenui, flava, trivittatd ;
spira obtuso-conicé; suturis valdé impressis; anfractibus instar senis, con-
vexiusculis; apertura parviuscula, ovata, intus alba et trivittata; labro acuto,
paulisper sinuoso ; columella incury4, incrassata.

Hab.—Benton County ? Northwest Alabama, G. Hallenbeck.

Gonrozasis ANTHONYI.—Testa levi, obtuso-conicé, subtenui, micanti, tene-
broso-castanea, evittati; spiri obtusi; suturis impressis; anfractibus instar
senis, convexiusculis ; apergura subgrandi, elongato-rhombica, intus fusces-
cente; labro acuto, ad marginem albid& et paulisper inspissati; columella
incurva et valdé contorta.

Hab.—Tennessee, J. G. Anthony.

Gontopasis Gaspiana.—Testa levi, subfusiformi, subtenui, cornea, evittata ;
spira paulisper exertans, mucronati; suturis impressis; aniractibus instar
octonis, convexis, varicosis; apertura parviusculd, subrhomboided, intus albida ;

labro acuto, paulisper sinuoso; columellA incurva et contorté.
Hab.—Tennessee, Prof. G. Troost. Alabama, Prof. Tuomey.

Gonropasis Bripgrs1Ana.—Testa levi, fusiformi, subinflata, subtenui, melled,
evittaté ; spird obtusé conicdé, ad apicem carinaté; suturis linearibus; anfrac-
tibus instar septenis, planulatis ; aperturi magna, subrhomboidea, intus albida ;
labro acuto, vix sinuoso; columella subinflect4, inferné et superné incrassata
et paulisper contorta.

Hab.—Cahawhba River, Alabama, E. R. Showalter, M. D.

(ZONIOBASIS INTERCEDENS.—Testd levi, fusiformi, subtenui, melled, fulgida,
evittati ; spiri conoidea, mucronata, ad apicem carinati; suturis linearibus;
anfractibus octonis, planulatis, varicosis; apertura submagnd, rhomboidea,
intus albidé; labro acuto, vix sinuoso; columella subinflect4, paulisper incras-
saté, inferné subrecta,

Hab.—Cahawba River, Alabama, E. R. Showalter, M. D.

GonloBasis Onrensis.—Testa levi, conicd, subtenui, evittata; spira obtusé
conica, mucronata, ad apicem carinat&é; suturis valdé impressis ; anfractibus
instar novenis, convexis; apertura parva, subrotunda, intus albé; labro acuto,
vix sinuoso; columella inflecté, valde incrassata.

Hab.—Yellow Springs, Ohio.

17

GoNIOBASIS CINEREA.—Testi levi, conoided, tenui, cineref, fulgidd; spird
obtusé conica, mucronata, ad apicem carinata; suturis valdé impressis ; anfrac-
tibus octonis, convexiusculis ; apertura submagné, subrhomboidea,. intus
ceruleo-alba; labro acuto, paulisper sinuoso; columella incurvi; paulisper
incrassata et purpurescente.

Hab.—South Carolina, Professor L. Vanuxem.

GonicBasis VANUXEMI.—Testa levi, fusiformi, subcrassi, tenebroso-corned ;
spira obtust conoided ; suturis impressis; anfractibus septenis, subconvexis ;
apertura magna, subrhomboide§, intus albida vel purpurea ; labro acuto, pau-
lisper sinuoso; columella incurva, superné et infern? incrassata.

Hab.—North Fork of the Holstor River, Virginia, Prof. L. Vanuxem.

GonIoBAsis SPARTENBURGENSIS.—-Testa levi, fusiformi, subtenui, virido-cornea,
falgida, vittata vel evittat& ; spira acuté conicd, ad apicem carinati; suturis
impressis ; anfractibus octonis, planulatis ; apertura submagn4, elongato-rhom-
boidea, intus albid&; labro acuto, vix sinuoso ; columella paulisper incurva,
_ inferné incrassata.

Hab.—Spartenburg District, S. Carolina, Prof. L. Vanuxem. Marietta, Ohio,
Dr. Hildreth. Wabash River, Indiana, H. C. Grosvenor.

GontoBasis aAuricoma.—Testi levi, fusiformi, subtenui, mellea, vittat& ; spira
valdé obtusa; suturis linearibus; anfractibus quinis, vix convexis; apertura
pergrandi, subrhomboide4, intus flavescente; labro acuto, vix sinuoso; colu-
mella incurva, paulisper incrassata.

Hab.—Tennessee River, W. Spillman, M. D.

Gontozasis GrorGiana.—Test levi, fusiformi, inflata, subcrassi, luted, ful-
gida, vittati; spiri valdt obtusa; suturis impressis; anfractibus quinis, con-
vexis; apertura grandi, subrhomboided, intus albida et vittata; labro acuto,
recto; columella incurva, incrassaté, parum contorta.

Hab.—North Georgia.

Goytozasis Vauxrana.—Testa levi, fusiformi, subtenui, viridi; spirié valde
obtus&; suturis parum impressis; anfractibus quinis, superne planulatis et
carinatis; apertura pergrandi, lato-rhomboidei; labro acuto, recto; colu-
mell& parum incurva, é;

Hab.—Coosa River, Alabama, Prof. Brumby.

Gostopasis WuiteI.—Testa levi, fusiformi, crassa, valdé inflata, luteo-fusca,
fulgida, trivittata ; spira valde obtus&; suturis parum impressis; anfractibus

3

18

quinis, superné planulatis, ultimo ventricoso; apertura pergrandi, lato-rhom-
boidea; labro acuto, recto; columella incurv4, incrassataé et contorta.
Hab.—Georgia, Rev. G. White.

Gonropasis Brinneyiana.—Testi levi, obtuso-fusiformi, subtenui, valde inflata,
teliebroso-oliva, obsoleté vittaté ; spira depress; suturisimpressis ; anfractibus
quinis, superne planulatis, ultimo ventricoso; apertur’ pergrandi, subovata,
intus tenebros& ; labro acuto, parum sinuoso; columellé incrassata, ad basim
maculata.

Hab.—Coosa River, Alabama, W. Spillman, M. D.

Gonrozasis Tuomuyi.—Testé levi, fusiformi, crassiuscula, luteo-oliva, vittata
vel evittaté ; spiri obtuso-conicai, ad apicem minut? plicat& ; suturis impressis ;
anfractibus instar senis, superne planulatis, ultimo subventricoso; apertura’
grandi, trhomboidea, iutus albid&; labro acuto, parum sinuoso; columella
incrassatai, incurv& et contorta.

Hab.—North Alabama, Prof. M. Tuomey.

GoNIOBASIS FABALIS.—Testi levi, elliptic&, crassa, lutea, quadro-vittata ;
spira valdé obtusi; suturis irregulariter impressis; anfractibus quaternis,
superne convexiusculis, ultimo pergrandi; apertura magna, subrhomboidea,
intus albid& et vittata ; labro acuto, vix sinuoso; columella inferné et superné
incrassata.

Hab.—Tennessee River, W. Spillman, M. D.

GonioBaSIs GIBBEROSA.—Testa levi, subfusiformi, crass4, pallido-castaned vel
rufo-castaned, vittat&i vel evittaté ; spira obtus’; suturis irregulariter impressis;
anfractibus gibberosis, superné convexiusculis, ultimo pergrandi; aperturi per-
grandi, rhomboidea, intus albi; labro acuto, sinuoso; columella ineurva,
Superné et inferné incrassata.

Hab.—Alabama River, E. R. Showalter, M. D.

Gontopasis Lyonu.—Testi plicaté, superné striatéi et ad apicem carinatd,
luteola, subtenui, valde exerti; spira attenuata, mucronat&; suturis irregu-
lariter impressis; anfractibus novenis, convexiusculis; apertura parviusculA,
subrhomboideA, intus albidi; labro acuto, sinuoso; columella incurvA, incras-
sata, parum contorta.

Hab.—Grayson County, Kentucky, 8. S. Lyon.

Gonropasis Pyzasi.—Testa plicata, valde exert, Inteola, tenui, vittata ; spira
attenuata, mucronata; suturis impressis; anfractibus septenis, planulatis;
apertura ovato-rhomboided, intus albida et vittata ; labro acuto, sinuoso ; colu-
mell4 paulisper incurva, parum incrassata et contorta.

Hab.—Tuscumbia, Alabama, B. Pybas.

ils)

Goytopasis Dutronu.—Test& plicataé, conoidea, diluté rufo-lutei, crassa,
bivittata; spiraé conoided; suturis irregulariter impressis; anfractibus instar
septenis, subconvexis; apertura ovato-rhomboidea, intus alba et lato-vittata ;
labro acuto, sinuoso; columella incurva, incrassata et valdé contorta.

Hab.—Maurey County, Tennessee, T. R Dutton. Grayson County, Kentucky,
S. S. Lyon.

Goniozasis Dootyensis.—Testa plicata, subcylindracea, tenebroso-cornea vel
subsinerea, tenui, evittati; spira attenuata; suturis irregulariter impressis ;
anfractibus instar novenis, convexiusculis, apertura parva, ovato-rhomboidea,
intus albida ; labro acuto, sinuoso; columella valde incurva, in medio impressi
et valdé contorta,

Hab.—Tennessee, Prof. Troost. Near Vienna, Dooly County, Georgia, in a
small stream tributary to Flint River, Rev. G. White.

Gonropasis VIENNAENSIS.—Testé plicata, subfusiformi, olivaced, subtenui,
evittata ; spird regulariter conicé; suturis irregulariter impressis; anfractibus
septenis, planulatis; apertur& subgrandi, rhomboidea, intus ceruleo-alba ;
labro acuto, sinuoso ; columella incurva, inferné incrassaté, parum contorta.

Hab.—Near Vienna, Dooly County, Georgia, in a small stream tributary to
Flict River, Rev. G. White.

GoNIoBASIS STRENUA.—Testa plicata, subfusiformi, fusco-olivacea, subtenui,
evittaté ; spiri subelevati; suturis valde impressis ; anfractibus instar sep-
tenis, planulatis; aperturi subgrandi, ovato-rhomboidea, intus albida; labro
acuto, subsinuoso; columella incurva et contort.

Hab.—Benton County? Northwest Alabama, G. Hallenbeck.

GoyIoBASIS SPARUS.—Testa plicati, subattenuata, pallido-flavescente, sub-
crass4, evittaté; spird attenuati, mucronata; suturis irregulariter impressis ;
anfractibus octonis, convexiusculis; apertura’ submagnd, ovato-rhomboidea,
intus alba; labro acuto, sinuoso; columella parum incurvd, superné lutea,
inferné alba, contorta.

Hab.—Tennessee, Dr. Currey and Prof. Lindsley.

GoNIOBASIS DIFFICILIS.—Testé plicata, subattenuaté, tenebroso-oliva vel
fuscescente, subtenui, evittata; spiré attenuata, mucronataé; suturis regula-
riter impressis; anfractibus instar octonis, convexiusculis; apertura parvius-
cul4, ovato-rhomboidea, intus albida; labro acuto, subsinuoso; columella
incurva, incrassata et contorta.

Hab.—Tennessee, Dr. Edgar.

20

Gonropasis Barrptana.—Testa plicati, subattenuat&, tenebroso-fusci, sub-
crassa, unovittata ; spird subattenuata, mucronata; suturis impressis ; anfrac-
tibus octonis, convexiusculis; aperturi parviusculd, ovato-rhomboidea, intus
albidi et unovittata; labro acuto, vix sinuoso; columellé incurvé, parum
incrassata et valdé contorti.

Hab.—Columbia River, at Fort George, Oregon, J. Drayton.

GONIOBASIS INCLINANS.—Testa valdé plicata, subattenuati, tenebroso-fusca,
subtenui, obsoleté vittata ; spira subattenuaté, mucronata; suturis sulcatis ;
anfractibus octonis, planulatis, plicis inclinatibus indutis; aperturi parva,
rhomboidea, intus dilute fuscescente; labro acuto, sinuoso; columella valde
incurva, fusco-rufescente et valdé contorta.

Hab.—Near Albany, Georgia, Rev. G. White. Etowah, J. Postell. Tuscum-
bia, Alabama, B. Pybas.

GoNIOBASIS INDUTA.—Testa valdé plicata, conicd, subtenui, polita, tenebro-
sa, quadrivittat& ; spira conoided, mucronata ; suturis valde impressis; anfrac-
tibus octonis, p!anulatis, plicis erectis indutis; aperturd parva, rhomboidea,
intus albida et quadrivittat’; labro acuto, subsinuoso; columellé incurva et
contorta.

Hab.—Near Vienna, Dooly County, Georgia, Rev. G. White.

Gonrogasis LinpsLey1.—Testa plicaté, cylindraceo-conicd, subtenui, luteo-
corned, evittata; spirii conoidea; suturis irregulariter et valdé impressis ;
anfractibus planulatis, plicis erectis undutis; apertura parvinscula, rhom-
boidea, intus czruleo-alba; labro acuto, sinuoso; columella incurva et
contorta. ;

Hab.—Tennessee, Prof. Lindsley and Dr. Edgar.

Gon1opasis THorTon11.—Testa rugoso-plicata, conoidea, subtenui, cornea,
evittata ; spira conoided ; suturis irregulariter et valdé impressis ; anfractibus
convexiusculis, plicis flexis distantibus.indutis; apertura submagna, rhom-
boidea, intus alba; labro acuto, sinuoso; columella subincurvi, incrassata et
contorta.

Hab.—Tuscumbia, L. B. Thornton, Esq. Florence, Alabama, Rev. G. White.

GONIOBASIS INTERVENIENS.—Testi plicati, conoided, subtenui, tenebroso-
cornea, vel fused vel bivittaté vel evittata; spira obtuse conoidea; suturis
irregulariter et valdé impressi8 ; anfractibus instar senis, planulatis, plicis
paulisper flexis; aperturaé subgrandi, rhomboided, intus alb& vel vittata vel
fusca; labro acuto, sinuoso; columella incurvé et parum contorta.

Hab.—North Alabama, Prof. Tuomey.

21

GoNIOBASIS CONTINENS.—Testa plicatd, conoided, subtenui, luteo-corned, evit-
tata; spird regulariter conicd ; suturis impressis; anfractibus instar septenis,

convexiusculis, plicis paulisper flexis ; apertura parviusculd, ovato-rhomboided,
intus czruleo-alba; labro acuto, vix sinuoso; columellé parum incurva et
contorta.

Hab.—North Alabama, Prof. Tuomey.

Gontopasis cEREA.—Testa plicata, conoided, subtenui, cerea, evittata; spira
conoided; suturis impressis; anfractibus senis, subconvexis, plicis minutis:
apertura grandiuscula, elongato-rhomboided, intus albida ; labro acuto, sinuoso;
columella incurvaé et contorta.

Hab.—Tennessee, Prof. Troost; and Duck Creek, Tennessee, J. Clark.

GoNIOBASIS viripicaTa.—Testi plicaté, subattenuaté, tenui, viridescente,
evittata ; spird conoided, subattenuati; suturis impressis; anfractibus instar
septenis, planulatis, plicis suberebris ; apertura parvissimd, rhomboidea, intus
czruleo-alba ; labro acuto, parum sinuoso; columella incurvd, superné flaves-
cente, inferné albida, contorta.

Hab.—Grayson County, Kentucky, S. S. Lyon.

Gontospasis Lemyana.—Testi plicati, fusiformi, subtenui, luteo-cornea,
evittata ; spira obtuso-conic4 ; suturis linearibus ; anfractibus senis, planulatis;
apertura pergrandi, ovato-rhomboided, intus albida; labro acuto, tenui; colu-
mella incurva, ad basim contorta.

Hab.—Benton County, Northwest Alabama, G. Hallenbeck, Esq.

GoyioBasis ABBEVILLENSIS.—Testa plicatd, conoided, subcrassi, castanea,
fulgida, evittata; spiri conicd; suturis linearibus; anfractibus septenis, con-
* yexiusculis, feré planulatis; ad apicem carinatis et striatis; apertura grandi-
uscula, ovato-rhomboideda, intus subochracei; labro acuto, vix sinuoso: colu-
meila incrassata et contorta.
Hab.—Abbeville District, S. Carolina, J. P. Barratt, M, D.

GoNIOBASIS AM@NA.—Testi plicaté, subfusiformi, crass4, dilut® castaned,
eyittata; spira obtuse conoided; suturis irregulariter impressis; anfractibus
instar senis, subconvexis, ad apicem striatis; aperturd grandi, ovato-rhom-
boidea, intus albida; labro acuto, parum sinuoso, columella incrassata, incurvé
et contorta.

Hab.—North Alabama, Prof. Tuomey.

GoNIOBASIS PAUPERCULA.—Test4 plicaté, subcylindraced, subtenui, castanea

yel tenebroso-oliva, evittaté; spiri curtiuscula ; suturis impressis ; anfractibus

22

convexiusculis, superné plicatis, ad apicem striatis; apertura parvd, ovato-
rhomboidea, intus albidi; labro acuto, parum sinuoso; columell& incurya et

paulisper contorta.
Hab.—North Alabama, Prof. Tuomey.

GONIOBASIS PROLETARIA.—Testi plicaté, obtusé conoided, subtenui, corned,
evittaté; spird obtusé conici; suturis impressis; anfractibus instar sénis,
convexiusculis, superné plicatis ; apertura grandiuscula, subrhomboidea, intus
albid& ; labro acuto, sinuoso; columella incurva, incrassatd et contortd.

Hab.—Florence, Alabama, Rey. G. White.

GONIOBASIS INCONSTANS.—Testi plicata, subfusiformi, subtenui, cornea vel
olivaceé vel tenebroso-fusca, vittaté vel evittaté; spira obtus® conica; suturis
impressis; anfractibus senis, convexiusculis, superne plicatis; apertura grandi-
uscula, subrhomboidea, intus albid& vel diluté purpurea vel vittata ; labro
acuto, parum sinuoso; columella incurva et contorta.

Hab.—Etowah River, J. Postell.

GoNIOBASIS MEDIOCRIS.—Testa plicaté, subfusiformi, subtenui, cinerea, ful-
gida, vittata ; spira conoided ; suturis irregulariter impressis ; anfractibus senis,
planulatis; apertura grandiuscula, rhomboided, intus albidé et vittata; lahro
acuto, sinuoso; columella incurva, incrassata et contorta.

Hab.—Tennessee, Dr. Edgar and President Lindsley.

GonroBasis CRISPA.—Testa plicatd et transverse striaté, fusiformi, subcrassa,
luteola, crispata, evittat&; spira obtusi; suturis irregulariter impressis; an-
fractibus instar senis, convexiusculis ; apertura grandi, ovato-rhomboidea, intus
albidd ; labro acuto, vix sinuoso; columella parum incurva et contorta.

Hab.—Florence, Alabama, Rev. G. White.

GoNIOBASIS ORNATELLA.—Testa plicata, fusiformi, crassiuscula, luteo-cornea,
vittaté ; spira obtuso-conoidea ; suturis irregulater et valdé impressis ; anfrac-
tibus instar senis, convexis; aperturd grandi, ovato-rhomboidea, albida ef
obsolete yittata ; labro acuto, vix sinuoso; columellaé parum incurva et con-
torta.

Hab.—Tennessee, Coleman Sellers.

GoNIOBASIS OLIVELLA.—Testa plicata, fusiformi, subcrassa, olivaced, fulgidé,
evittaté; spiraé obtuso-conoided; suturis irregulariter et valdé impressis ; an-
fractibus instar quinis, convexiusculis; aperturé grandi, rhomboidea, albida ;
labro acuto, vix sinuoso; columell& incurva et contorta.

Hab.—Tennessee, Prof. Troost.

23

GoNIOBASIS PURPURELLA.— Testa plicati, conoided, tenui, purpurescente,
fulgida, vittataé vel evittatd, spiri conoidei; suturis impressis; anfractibus
instar septenis, planulatis; apertura grandiuscula, rhomboidea, intus tene-
bros; labro acuto, vix sinuoso; columellé incurva et contorta.

Hob.—Caney-Fork River, Tennessee, J. Lewis, M. D.

GoNIOBASIS CINERELLA.—Testi plicati, subfusiformi, tenui, luteo cinerea,
evittata; spira obtusé conoidei; suturis irregulariter impressis ; anfractibus
senis, convexiusculis; aperturé grandiusculdi, ovato-rhomboidea, intus albida ;
labro acuto, vix sinuoso; columella incurvaé et parum contorta.

Hab.—Tennessee, Coleman Sellers.

Gonropasis Curisty1.—Testa plicata vel striata vel granulata, fusiformi,
suberassa, inflata, luteo-olivaced, vittata ; spira obtusé conoided ; suturis im-
pressis ; anfractibus quinis, convexiusculis; aperturi pergrandi, ovato-rhom-
boidea, intus vittata ; labro acuto, vix sinuoso; columelli incrassata, parum
contorta.

Hab.—Valley River, Cherokee County, N. Carolina, Prof. David Christy.

GONIOBASIS INSTABILIS.—Testd plicatd vel levi, fusiformi, crassa, subinflatd,
vittaté vel evittata, olivacei; epird conoidei; suturis impressis; anfractibus
instar quinis, conyexiusculis; apertura grandi, ovato-rhomboide, intus vit-
tata; labro acuto, vix sinuoso; columella incrassatéi, parum incurva et
contorta.

Hab.—Twenty-one miles north of Murphy and other places in Cherokee
County, Georgia, Prof. David Christy.

GontoBasis GERHARDTII.—Testa4 carinata, fusiformi, tenui, fulgida, luteo-
virente, quadrivittata; spiri regulariter conica; suturis impressis; anfrac-
tibus senis, planulatis, ultimo grandi; apertura magni, rhomboided, intus
albida et vittaté; labro acuto, parum sinuoso; columellié incurva, inferné
paulisper incrassata.

Hah.
bama, Dr. Spillman.

Chattanooga River, Georgia, Alexander Gerhardt. Coosa River, Ala-

Gontozasis 1NFuscATA.—Testd carinata, fusiformi, subtenui, fulgidaé, tene-
brosa, nigricante, trivittata; spira conoidei; suturis impressis; anfractibus
instar senis, superné planulatis, ultimo grandi; apertura submagna, rhomboidea;
intus albida vel fusca, trivittata; labro acuto, parum sinuoso; columella in-
curva, inferné paulisper incrassata.

Hab.—Georgia, Rev. G. White. Coosa River, Alabama, Dr. Spillman.

24

GONIOBASIS MUTABILIS.—Test& carinati vel plicaté vel striaté, subfusiformi,
subcrassé, luteo-virente, quadrivittata vel evittati; spira obtusé conoide/;
anfractibus senis, planiusculis; aperturé subgrandi, rhomboidea, intus albidé;
labro acuto, vix sinuoso; columella incurv4, incrassata, parum contorta. 4

Hab.—Butts County, Ga., Rev. G. White.

GonroBasis crupA.—Testé carinatd, subfusiformi, subtenui, fulgida4, tene-
broso-fusca, obsoleté vittata ; spiri obtusa; suturis paulisper impressis; an-
fractibus supérné planulatis, ultimo grandi; apertura submagn4, rhomboided,
intus tenebrosi; labro acuto, vix sinuoso; columelli paulisper incurvd, vix
incrassata.

Hab.—Tennessee River, Dr. Spillman.

GONIOBASIS RUBELLA.—Testf carinaté, subulaté, subtenui, rubicunda, evit-
tata; spir& attenuata; suturis valdé impressis; anfractibus octonis, vix con-
vexis; apertura parvissima, subrhomboidea, intus vel albida vel rubida ; labro
acuto, sinuoso; columellé parum incurva et contorta.

Hab.—Near Murphy, Cherokee County, N. Carolina, Prof. Christy.

GONIOBASIS MACELLA.—Test& carinaté, subulata, tenui, olivaced, evittata;
spiré subattenuata ; suturis valdé impressis ; anfractibus septenis, convexius-
culis ; apertura parvissimd, subrhomboidea, intus albida, ad basim maculata;
labro acuto, parum sinuoso; columella incurva et paulisper contorta.

Hab —Coosa River, Alabama, Prof. Brumby.

GOoNIOBASIS RUBIGINOSA.—Testa carinata, subsubulata, subtenui, fulgida, rubi-
ginosa, obsoleté vittati; spira subattenuata; suturis valdé impressis; an-
fractibus instar senis, convexis; aperturé parvissim&, subrhomboided, intus
diluté rubiginos’; obsoleté bivittaté ; labro acuto, sinuoso; columella parum
incurya et contorta.

Hab.—Oregon, W. Newcomb, M. D.

Gonropasis Ucnrfnsis.—Testa carinatd, obtusé conoided, subtenui, corned,
eviltata; spiré obtusa; suturis impressis; anfractibus instar senis, planulatis ;
apertura submagna, ovato-rhomboided, intus albidi; Jabro acuto, parum sinu-
oso; columella incurva, paulisper contorta.

Hab.—Little Uchee River, below Columbus, Georgia, G. Hallenbeck, Esq.

GONIOBASIS INOSCULATA.—Testa carinata, conoided, subtenui, luteo-corned,
evittata ; spira subelevati; suturis impressis; anfractibus instar septenis,
convexiusculis; apertura submagnd, rhomboidea, intus albidi; labro acuto,
sinuoso; columella incurva, inferné incrassata. 7

Hab,—Little Uchee River, below Columbus, Georgia, G. Hallenbeck, Esq.

:

Goyiozgasis Barrattu.—tTesta carinata, subfusiformi, subtenui, virido-cornea
vel rufo-cornea, obsolete vittata vel evittata ; spira obtuso-conoidea ; suturis
valdé impressis; anfractibus septenis, convexiusculis, ad apicem plicatis;
apertura submagnd, subrhomboided, intus albida vel obsoleté vittatai; labro
acuto, Vix sinuoso; columell& parum contorta.

Hab.—Abbeville District, S. Carolina, J. P. Barratt, M. D.

GoONIQBASIS RUBRICATA.— Testi carinatd, conoidedi, subtenui, rufo-fusca,
polita, evittata ; spiré subelevaté; suturis valdé impressis; anfractibus instar
septenis, convexis ; apertura submagna, rhomboide§, intus dilute rubida, labro
acuto, vix sinuoso; columella incurva, parum incrassata.

Hab.—Tennessee, Prof. Troost.

Gonrosasis BEnToxrEensis.—Testa carinata, plicata, striata’, conoidea, sub-
tenui, virido-coraea, evittatéi; spird elevati, conoided; suturis valdé impressis:
anfractibus septenis, convexiusculis ; apertura parviuscula, ovato-rhomboidea,
intus albida ; labro acuto, vix sinuoso; columella incurva, parum contorta.

Hab.—Benton County? North Alabama, G. Hallenbeck, Esq.

Gostopasis Necata.—Testd striati, ellipticé, subconica, crassi, luteola,
quadrivittata ; spira obtusé conica ; suturis -valdé et irregulariter impressis:
anfractibus senis, convexiuseulis, ultimo grandi; apertura parviuscula, ovata.
intus albida et quadrivittata ; labro acuto, spissato; columella inflecta, incras-
sata, ad basim obtuse angulata. ‘

Hab.—Coosa River, Alabama, B. R. Showalter, M. D.

Gowiozasis Ex.iortit.—Testa obsolete striata, subobtuso-conoided, suberassa,
vel flayescente vel fuscescente,’ evittaté ; spira subobtusa ; suturis valde im-
pressis; anfractibus instar senis, convexiusculis ; apertura magni, ovato rhom-
boided, intus vel albida yel fasci; labro acuto, parum sinuoso; columella
paulisper incurva, incrassaté et parum.contorta. }

Hab.—Fannin County, Georgia, Bishop Elliott. Uchee and Little Uchee
Rivers, Alabama, G. Hallenbeck and Dr. Gesuer.

GONIOBASIS FLAVESCENS.—Testa striata, interdum granulata et plicata, sub-
cylindracei, flavescente, crass&i ; spira obtusc conoided ; suturis irregulariter
impressis ; anfractibus convexiusculis, ultimo pergrandi ; apertura grandi, sub-
rhomboideA, intus vittata vel alba ; labro acuto, vix sinuoso, columella incurva,
superné valdé incrassata et contortd.

Hab.—Oconee and Tennessee Rivers, Tennessee, Rev. G. White.

Gostozasis Hattenzecki.—Testa tuberculata, inferné transversé striata, tur-
rita, sabtenni,luteo cornea vel olivaced, vittat& vel evittatai; spir’ eleyato-tur-

4

26

rita; suturis valdé impressis; anfractibus octonis, carinati3, ad peripheriam

compresso-tuberculatis ; aperturii magna, ovato-rhomboidea, intus albida;

labro crenulato, sinuoso ; columella incurva, parum incrassatd et valdé contorta.
Hab.—Randall’s Creek, near Columbus, Georgia, G. Hallenbeck.

Gonropasts Cansy1.—Testé tuberculata, plicati, inferné transversé striata,
turrita, tenui, vel fuscé vel diluté fuscia, maculat&i; spira turrita ; suturis ir-
regulariter impressis; anfractibus septenis, carinatis, ad peripheriam compresso-
tuberculatis; apertura parva, rhomboidea, intus maculat&é: labro crenulato,
sinuoso ; columella incurva et valdé contorta.

Hab.—Lake Monroe, Florida, Wm. Canby, and Etowah and Tennessee Rivers,
Georgia, J. Postell.

Gonrozasis CoupEeri.—Test& tuberculata, plicati, inferné et superne striata,
turrita, tenui, tenebroso-fusca, ad basim vittata ; spir& turrita ; suturis valde
impressis 7 anfractibus septenis, subcarinatis, ad peripheriam et supra com-
presso-tubercuiatis; apertura parvissim’, subrhomboidea, intus tenebroso et
uno-vittati ; labro crenulato, valdé sinuoso; columella incurva, contorta et
purpurescente.

Hab.—Etowah River, Mr. Couper, by J. Postell.

Goniozasis Downizana.—Testa tuberculata, subturrité, superné clathrata et
subcarinata, inferné transversé striatéi, tenui, diluté fusc&; spira conoidei,
clathrat&i; suturis irregulariter impressis ; anfractibus septenis, subcarinatis, ad
peripheriam et supra compresso-tuberculatis ; apertura submagna, ovato-rhom-
boidea, intus albid&; labro crenulato, sinuoso; columellé incurva et contorta.

Hab.— Etowah River, J. Postell.

GonroBasis TRYONIANA.—Test& granulosa vel striati, subfusiformi, luteo-
fusca vel tenebroso-fusca, crassa, robusta, vittata, rard evittata, spira obtusé
conoidea ; suturis irregulariter impressis; anfractibus instar senis, ultimo per-
grandi; apertura pergrandi, ovato-rhomboide4, intus valdé vittata ; labro sub-
crenulato, vix sinuoso; columelli, paulisper incurva et vix contorta.

Hab.—Oostenaula, near Rome, Bishop Elliott. Etowah River, Georgia, J.
Postell, and Ocoee River and Tennessee River, Rev. G. White.

GONIOBASIS GRANATA.—Testi granulos&, inferné striat&, fusiformi, vittata,
suberassa, fulgida, inflata, olivace& vel rubiginosi ; spira depress& ; suturis ir-
regulariter impressis; anfractibus instar quinis, planiusculis, ultimo pergrandi ;
apertura’ grandi, ovato-rhomboide§, intus valdé vittataé ; labro parum crenulato,
vix sinuoso; columella incurva et contorta.

Hab.—Etowah River, near Canton, Georgia, Bishop Elliott and Rey. G. White.

27
GonroBasis STEWARDSONIANA.—Test& granulata, transversé striat’, subfusi-
formi, crassi, fulgida, inflata, viridi vel fusc4, evittat&i; spira perobtus&; su-
turis impressis; anfractibus convexiusculis; apertura pergrandi, ovato-rhom-
boidea, intus albi; labro acuto, subsinuoso; columella incurva, superné et in-
ferne incrassata et contorta.
Hab.—Knosyille, Kentucky, B. W. Badd, M. D.

Gonropasis capUs.—Testa cancellataé, fusiformi, subcrassi, inflata, flaves-
cente, evittat&; spira subobtusi; suturis irregulariter impressis; anfractibus
quinis, convexiusculis, superné eancellatis; apertura pergrandi, ovato-rhom-
boidea, intus alba ; labro acuto, parum sinuoso ; columella incurva, incrassata
et contorta.

Hab.—Georgia, Major J. Le Conte.

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Descriptions of Eleven New Species of MELANIDZ of the United States.

BY ISAAC LEA.
[Read June 3d, 1862.]

TrypanostomMa HenryaANum.—Testa carinati, attenuata, mucronata, tenui,
diapban&, pallido-cornea, evittata; spira regulariter attenuato conic’ ; suturis
regulariter impressis; anfractibus denis, planulatis, inferné medio regulariter
carinatis et striatis; apertura parva, subrhomboidea, intus albida ; labro valde
acuto, sinuoso; columella incurva et valde contorta. _

Hal.—Tennessee? Smithsonian Institution. ~~

TRYPANOSTOMA ROSTELLATUM.—Testa striata’, attenuata, subtenui, cornea
evittatA ; spira elevata ; suturis valdé impressis ; anfractibus octonis, convexius-
culis ; apertura parva, rhomboidea, intus albidA; labro acuto, valdé sinuoso ;
columellA ineurva et valdé contorta.

Hab.—Florence, Alabama, Rev. G. White.

TRYPANOSTOMA STRICTUM.—Test& carinata, subattenuata, tenui, diaphana,
pallido-cornea, uno-vittati; spira regulariter conic&; suturis linearibus; an-
fractibus instar senis, superne planulatis; apertura parviuscul’, rhomboidea
intus albida et uno-vittataé; labro acuto, paulisper sinuoso; columelli parum
incurya et contorta.

Hab.—South Carolina, Prof. L. Vanuxem.

TRYPANOSTOMA LATIVITTATUM.—Testa carinaté, subattenuati, subtenui, ful-
gid, tenebrosi, late vittata; spiré conoide’ ; suturis linearibus; anfractibus
instar septenis, superne planulatis, ad basim luteis; apertura parva, rlom-
boidead, intus lativittata ; labro acuto, sinuoso; columella inecurvd, inferné in-
*

crassata.
Hab.—Chikasaha River, Alabama, Wm. Spillman, M. D.

Tryeanostoma Canoxinense.—Testa levi, conoidea, subcrassi, cornea ; spira
obtuso-conica ; suturis impressis ; anfractibus septenis, convexiusculis ; apertura
parviuscula, rhomboidea, intus albid& vel fuscescente; labro acuto, sinuoso ;
columella incurvA, incrassat& et contorta. :
Hab.—South Carolina, Prof, L. Vanuxem.

TRYPANOSTOMA LUTEUM.—Testi levi, obtuso-conici, subcrassi, straminea,
evittata, mucronata ; spiré obtuso-conica ; suturis impressis; anfractibus octonis,

29

convexiusculis: apertura parviuscula, rhombica, intus diluté stramine’a; labro
acuto, sinuoso, ad marginem incrassato; columella inflecti, inferne incrassati,

et contorta.

Hah.—3outh Carolina, Prof. L. Vanuxem.

TRYPANOSTOMA DIGNUM.—Paulisper nodosa, subfusiformi, subcrassa, mellea,
unifasciata; spira elevata, regulariter conicd; suturis impressis; anfractibus
instar octonis, planulatis, ultimo subgrandi; apertura ovato-rhombica, intus
albida vel salmonia, univittatd ; labro acuto, sinuoso: columellA inflect&, con-
torti, ad basim obtusé angulata.

Hab.—Yellowleaf Creek, Shelby Co., Alabama, E. R. Showalter, M. D.

STREPHOBASIS CARINATA.—Testa carinata, subfusiformi, inflata, subtenui, vi-
rente, quadrivittat& ; spira obtusi; suturis valde impressis; anfractibus senis,
planulatis, ad apicem carinatis, ultimo inflato ; apertura submagna, rhomboidea,
intus albida et yittatié; labro acuto, parum sinuoso ; columella incrassata, re-
trorsa et valdé contorta.

Hab.—Tennessee River, Wm. Spillman, M. D.

STREPHOBASIS OLIVARIA.—Testa levi, elliptici, crassi, vittata, tenebroso-
oliva ; spir’ obtuso-conica ; suturis valde impressis ; anfractibus instar septenis,
conyexis, ultimo pergrandi; aperturd subgrandi, rhomboided, intus alba et vit-
tata ; labro acuto, paulisper sinuoso; columella inferné incrassata et retrorsum
contort.

Hab.—Knoxville, Tennessee, J. Clark.

LivHAsIA viTTATA.—Testi levi, cylindracei, subtenui, tenebroso vorned,
quadrivittata ; spira brevi, decollaté; suturis irregulariter impressis ; anfracti-
bus planulatis, ultimo pergrandi; apertura’ grandi, subrhomboided, intus albida
et valdé vittata ; labro acuto; columella incrassati, alba, incurva.

Hab.—Coosa and Cahawhba Rivers, Alabama, E. R. Showalter, M. D.

Lrrnasra Downtet.—Testa parum nodulosa, subcylindracea, castanei, spira
obtuse conoided, subelevati; suturis irregulariter impressis; anfractibus sep-
tenis, planulatis, ultimo subgrandi; aperturi subgrandi, rhomboidea, intus vel
albida yel vittat& ; labro acuto, sinuoso; columella alba et incurvi.

Hob.—Cumberland River, T. C. Downie.