1856.]
Color. Yellow above, incllulog to brown, with very
numerous
small black spots; underparts of abrighteryellow throughout, withoutspots.Dimen&ions. Lengthofhead4 lines;greatestbreadth 3 lines; length ofneck and body 1inch 1\lines, (Fr.;) oltail 1inch 5lines; total length 3 inches1 lines.
Ilabitat.
With
theprecedingin Georgia.One
specimen inMus.Acad.
Nat.Sc,
presented by MnjorLe
Cunie,U.S.A.Contributions to the Ichthyology ofthe Western Coast ofthe United States,
from
specimensin themuseum
oftheSmithsonionInstitution.By Charles
Girard, M.D.Two
years havescarcely elapsed sinceIcommunicated
to theAcademy
de-scriptions ofvariousfishes collected
upon
differentpoints of the Pacific coast of North America.Dnring
that period the indefatigable researches of severaloifi-ccs
of the U. S.Army,
and naturalists attached to the surveysmade
under ordersfromtheGeneral Government, have brought to lightnuxnynew and
in- terestingmembers
of thatclassof animals,and
ofwhich
Iproposenow
to give abrief account, extractedfrom finalReports,made
to the officers in charge of these surveys.Ithas alsobeen
deemed
advisabletomention such changesashave beenmade
inthe generic position of several species previously described, either
by me
or others,in ordertogive amore
correct ideaof theReportsjust alludedto.Itwillbe
remembered
thatwhileIwas
engagedinthose investigations ofourWestern
fishes,two
naturalists,Drs.W.
0. Ayersand W.
P. Gibbons, bothresi- dents ofSan
Francisco, Cal.,had
(withoutany knowledge
ofwhat
Iwas
doing,) described a certainnumber
ofspecies,some
ofwhich we
alreadyknow
have provedidentical withmy
own.The
law of priority in their publication will decideupon
thenames
tobefinallyadoptedin thenomenclature.So
farIhave been unwillingto settleupon
anyidentificationswithoutthespecimenstogoby, inordertoavoid confusion as well as complicate the sj'nonymy. Drs. AyreKand
Gibbons, both,haveshown
anearnest desireto furnishme
with authentic specimensof the specieswhich
they havedescribed,and
Iam happy
to say that fromtheformerIhave beenfavoredby
agood many up
tothis day, aswill be seen further on.For referencetothe species described
by
Prof.Agassiz,some
ofwhich
havf appearedinmy
papers,itisbutjustto saythatsuch identificationsas were at- temptedby me, weremade
fromthe accounts publishedatthat time.As
far a.sgeneraareconcernedIfeelconfident thatnoerror
was
committed; in regard to the speciesIentertain certaindoubtswhich
can not beremoved by
the docu- mentsatourcommand.
Ihave soughttodojusticeto the subjectfromthevery beginning, and ratherthan introduceany
changes in their present nomencla- tureIsendthem
before theworldastheynow
stand.With
theabovepreliminariesIproceedinto the subject.The
speciesformerlydescribedby me
under the genus Lahraxwere
found,upon
furtherexamination,to constitute a genus by itself, the relationship ofwhich
beingmore
those ofSerranusthan of Labrax,and
itis in the vicinity of the formerthat it ought to be placedinthe ichthyicmethod.From
Serranus itmay
be distinguishedby
the outline of the spinousdorsal fin,and
the rela- tive developmentof thecaninetaeth,which
are so small as to have suggested the idea that the species belongedtoLabrax.The new
genuswe
will henceforthcallFARALABRAX,
and
characterise as follow:"Generalphysiognomy
that of Labrax, but thefirst dorsalfiniscontiguoustothesecondasinSerranus.The
profil of the body is subfusiform the caudal fin subtruncated or slightly emarginated posteriorly.[June, The
headissubconical, thelowerjaw
alittlelongerthan the upper, themouth
rather large;card-like teethupon
the premaxillaries, dentaries,vomer and
pala-tines,witha
row
of smallcanineteeth alongthe edges of the jaws.Tongue
smooth. Smalland homogenous
spinesupon
the outercurve of the preopercle.Two
smalland
inconspicuousspinesupon
the marginof the opercle.Edge
of suborbital, entire;humerus
denticulated;opercularapparatusand
cheekscover- ed withscales,smalleronthecheeksthan onthe opercles. Gill openings con- tinuousunderthe throat; branchiostegalrays, sixin number. Scalesminutely serrated posteriorly."Paralabrax
nebuliferand
P.clathratus
are thetwo
species.Dr. Ayres's Centrarchus maculosusis
my
C.interruptus.A new andinterestingmemberof thegroup TrachinidoB,we inscribe into the methodunderthe appellation of
HOMALOPOMUS,
"
Thegeneralaspect of
which
iselongated, themouth
large,thelowerjaw
long- est;upper and lower jaws provided with canine teeth; card-like teeth on the vomer. Palatines toothless; tongue smooth. Dorsal fins separated; anterior, smallandsubtriangular; posterior,extending mostly to rest of space towards the caudal.
Anal
finlongerthandeep, situatedfarback. Opercular apparatus spinelessand
scaly;cheekssmooth
andscaleless.Upper
surfaceofheadcover- ed withminutescales. Scalescoveringthebody
ofmoderate development with posteriormarginentire,and
smooth. Gill openings continuous underthehead;branchiostegals,sixinnumber."
A
single speciesisknown,
severalspecimens ofwhich
were examined, all ofwhich
were collected at Astoria,Oregon
Territory,by
Lt.W.
P.Trowbridge,U.S. A., to
whom
Itake pleasurein dedicatingit.HoMALOPOMUS
TROWBRIDGIIhasthe"snoutpointed, the
mouth
deeplycleft,and
the posterior extremity of the raaxillariesextendingtothevertical lineof the posterioredgeof thepuj)il.The
eyes arelarge.The
tipsof the pectoralfinsreachasfarasthe anterior margin of the analfin.The
colorisgreyishbrown
above,and
silverygreybeneath."Inthe Cottoidgroupthere are glorious additions. In the first place I have
had
the greatsatisfactionof identifying,fromactual specimens, the Coitus asper of SirJohn
Richardson,and
to describeit comparatively withtheothermembers
of thesame
genus.Amongst
the trulymarinerepresentativesI will first introducea typewhich
seemsto bearmuch
closeraffinitiestothe freshwater genera thanwas
anticipa-ted.
In
naming
itOLIGOCOTTUS,
allusionis
made
chiefly toits diminutive size.We
havefullevidence that the specimensbefore us areadults,and
consequently havenot hesitated in the se- lection of thatname.We
areaware, however,that further search might bring tonotice other species not quite so smalland
still of thesame
generic stamp.On
the otherhand,theetymologyof aname
isofbutlittleavail towards eluci- dating the history of the object it designates.The
natural characters of the genus willreadas follows:"Head
smooth, with the exception of afewspinesupon
the preopercleand
snout.Upper jaw
slightly the longest. Teethupon
the premaxillaries, dentaries, front ofvomer and
palatines. Gill openings continuous under the throat; branchiostegals six. Dorsal fins contiguous.Caudal
posteriorlyrounded. Insertionof ventralsbackwards
thebase of pec- torals. Origin of analfininadvanceof the anteriormargin ofsecond dorsal.Skin smooth,lateral linecontinuousforthewhole lengthof thebody."
OlIGOCOTTUS MACCLOSnS.
beingtheonlyspecies
known
at present,we
will characterize itby
saying:" that the
mouth
ismoderatelycleft; the posteriorextremity of the maxillary extendingtoa verticallineintersecting the pupil.A
stoutishbicuspidprocessuson
theconvexityof the preopercle.Two
acute nasal spines. Anterior dorsal lower thanthesecondor posterior. Yellowishbrown
above, mottledor varie- gated with blackish; alongthe dorsalregionaseriesofblotches of adeeperhue;lowerhalf of the sidesvermiculated.
Abdomen
of a bright saffron or yellowhue
inthemale. Inferiorsurfaceofhead
withtracesofblackmarkings
;throatand abdomen
unicolor, as also the ventralsand
anal. Dorsals, caudal,and
pectorals transversallybarred."Ithasbeen observed onseveral points of the coast
between
thebay
ofSan
Francisco, Cal., toPuget Sound,W.
T. In 1854, afewdriedup specimenswere
taken nearPresidioby
Lt.W.
P. Trowbridge, but their precarious state of keepingdidnot permit usto classifythem.The same was
thecasewith those collected atFortSteilacoomby
Dr.Geo. Suckley. It is but veryrecently that well preserved specimens,collectedby
B.Samuels,inTomales
Bay,Cal.,having reachedus,we
have been preparedtodeterminetheir position in the ichthyic method.The
fishmentionedby
Dr.Ayresunder
thename
of Acanthocottusinermisjiroyes tobemy Leptocottus
armatus.Next
inorderisanotherand
entirelynew
genus,forwhich
thename
ofLEIOCOTTUS,
hasbeenselected,
more
particularlyinreference toitssmooth
aspect. Itschar- acters are:"head
pei'fectlysmooth
: spinesupon
the preopercle only.Mouth
moderately cleft: jaws equal. Teethupon
the premaxillaries, dentariesand
frontof thevomer
;
none on
the palatines. Barbulesupon
the maxillaries.Gillopenings continuous under thethroat; branchiostegal raysfive. Dorsals nearlycontiguous
upon
theirbases. Ventrals insertedbackwards
of thebase of tlie pectorals.Caudal
posteriorly subtruncated. Skin perfectly smooth, bearingneither pricklesnorscales. Laterallinewellmarked and
continuousfrom head
totail."The
specieswhich
hascome
undermy
observation has somuch
ofthe aspect of Trigla that the specificname
ofLeiocottus hirundo
suggesteditselfforit."
The
snoutisdeclivousand
rather pointed; the poste- riorextremity of the maxillaryis provided withtwo
or three barbulesand
reaches averticallinedrawn
alittlebeyond
the anteriorrimoftheorbit.Su-
perior regionsblackishbrown
;abdomen
whitish beneath; inferior part oftailyellow."
It
was
collectedby
Lt.W.
P. Trowbridge, U. S. A. at the island ofSan
Miguel, Cal.Dr.Ayres'Ilemitriptcrus marmoratus,is
my
Scorpj^nichthysmarmoratus,
Clypcocottus robustus of thesame
author,ismy
Aspicottusbison.The
speciesdescribedby me
as Scorpcenichthyslateraliswas
subsequently re- ferredby
Dr.Ayresto anew
genusof hisunder
thedenominationofCalycilepi- dotuslateralLi,together with anotherspecies at thattimeunknown
tome, under thename
ofC.spi/iosus.On
a former occasionDr. Ayreshad announced
the presenceoftwo
species ofhemilepidoti intheBay
ofSan
Francisco, forwhich
he proposed thenames
of II. nebulosusand H.
spinosus.My
Scorpcemchihys lateraliswas
subsequentlyidentifiedby
himselfto his If. nebulosus,and
itwas
thenthat thegenus Calycilepidotusappeared withtwo
species: C. spinosusand
C. lateralis.G. spinosusIhavecarefullyexamined,
and
Iam
satisfiedthatitsproperplace isinthe genusIlemilepidotus,ascharacterisedby
Cuvier. In order,however, tofurnish reliabledatatogo upon, Imust
be permittedto offera diagnosis of of thatgenusasitnow
stands.10
[June,
Hemilepidotus.
''
Head rough and
prickly,withmembranous
flapsonvarious parts; opercu- larapparatusspinous.Mouth
moderatelycleft; jawsequal. Teethupon
the premaxillaries, dentaries, front ofvomer and
palatines. Gill openings sepa- ratedbeneathby
an isthmus; branchiostegals, sixoneitherside. Dorsal fins contiguous. Caudalrounded
posteriorly. Insertion of ventrals opposite the baseof pectorals. Longitudinal bandsof scales alternatingwithnacked
areas;scalesthemselvesfinelydenticulated."
Hemilepidotus spinosus
'has
membranous
flapsontheuppersurfaceand
sidesof the head.The
eyes are quite large.The
posterior free extremityof the maxillary extends to a vertical linedrawn
atthe posterior rimof the pupil. Dorsalband
of scalescomposed
ofsixrowsorseries;lateralband
of seven,fivebelow and two
above thelateral line.Ground
colordark reddish brown, with darkertransversebandsand
blotches."Specimenslabelled
by
Dr.Ayreswere
collectedintheBay
ofSan
Francisco, Oal.,by
Dr.John
S.Newberrv
; others inHumboldt
Bav,by
Lt.W.
P.Trow-
bridge, U.S.A."
So much
for Calycilepidotusspinosus: itisa trueHemilepidotus.As
toC.lateralis, thesecondspecies of Dr.Ayres' genus,a careful study has convincedme
thatitisnotspecificallyidenticalwithmy
Scorpcenichthyslateralis.Subsequentinvestigations of
more
perfectsi^ecimenshave convincedme
of the propriety ofremoving
thelatterfrom thegenusScorpsenichthys,and
sinceIhad
uo specimens of Hemilepidotusnebulosus, Ayres, {Calycilepidotus lateralis,Ayres,non
mihi)by which
to determineitsgenericaffinities,Ihavebeen compelledto institute, underthename
ofArtedius,
a
new
genustoreceivetwo
species,theoneabovereferredto,and
formerlyde- scribedby me
as Scorpcenichlhyslateralis,and
anotherwhich
sofarhad
remained unnoticed.The
following are itscharacters:"
Head
rough, withsupra-orbitalmembranous
flaps. Spinesupon
the preopercle only.Mouth
moderatelycleft;lower
jaw
slightly overlappedby
the upper. Teethupon
the premaxillaries, dentaries, front ofvomer,and
palatines. Gill openings continuous under the throat; branchiostegalsfiveoneitherside. Dorsalfinsseparated. Caudal sub- truncatedposteriorly. Insertionofventrals opposite the baseof the pectorals.A
dorsalband
of pectinated scales."Artedius
lateralis.Scorpcenichthyslateralis, Grd.,hasthe"surfaceof thehead smooth. Preopercle
armed
withaflatbicuspidspine.Band
of dorsal scalesnarrow,originating at the thoracicarchand
extendingtoneartheterminusof the baseofthesecond dorsal. Anteriormargin
of firstdorsal situatedinadvanceof the thoracic arch.Deep chesnut
brown
above, maculated withyellowish; beneathyellowish."Specimens collected at
San
Luis Obispo, Cal..by
Lt.W.
P.Trowbridge,U.S.A.
Artedius
notospilotusis characterised
by
the"surfaceof thehead
being subtuberculousand
scaly.Preopercle
armed
withaflat tricuspid spine. Anteriormargin
offirst dorsal situatedinadvanceof thebeginningof the dorsalband
ofscales,which
isbroadand
extends fromthe thoracicarchtoneartheterminusof thebaseofthesecond dorsal. Olivaceous,withaseriesof saddle-like blackpatches.Abdomen
dull yellowor white."Collected
by
E.Samuels
inTomales
Bay, Cal.Sebastesruber,Ayres,is
my
Sebastes rosaceus.Sebasiesnebulosus,Ayres,is
my
Sebastespasciatus.Sebastes variabilis,Ayres(notCuvier)is
my
Sebastes auriculatus.1856.]
Sebastes melanops,.1,
isa species hithertonudcscribed,
and which we
thus characterise: "Upper
sur- faceofhead
generally spineless. Posterior extremityof maxillaryreaching a vcrticallinedrawn
interiorlyto the posteriorrimof theorbit. Origin of dorsal finopposite orelse slightly inadvanceofthebaseof the pectorals.Upper
re- gions blackishbrown
; sides brownish, spotted with black; beneath greyish brown."Specimens were
collected atCape
Flattery,W.
T.,and
at Astoria, 0.T.. bv Lt.W.
P. Trowbridge,U.S.A.A
fineadditiontothegroupof Heterolepids instituted in1854 withtwo
genera.Chirus
and
Ophiodon,isthenew
genusOPLOPOMA,
characterised
by an
"elongated body,membranous
flaps abovetheorbits,and
spinesonthe preopercle.The
snoutisconical;the
mouth
large,and
thelowerjaw
the longest. Canineteethupon
the premaxillaries, dentaries, front ofvomer aud
the palatines. Gillopenings continuous;branchiostegalssixoneitherside.Dorsalfinscontiguous.
Caudal
posteriorly subcrescentic orelse concave. In- sertionof ventralsalittleposterior tothe pectorals.Body
coveredby
small cycloid scales."Oplopoma
pantheeina,theonlyspecies hitherto
known,
hasthe "uppersurfaceand
sidesof thebead
granular.The
preopercular spines are few, smalland
blunt. Posterior ex- tremity ofmaxillary extendingbeyond
the orbit. Origin of anterior dorsal situatedinadvance
of theconvexityofthei^reopercle. Scalesextending over thebase ofboththecaudaland
pectoralfins. Blackishbrown
above, reddishbrown
beneath. Dorsaland
lateralregions spottedwithblack."Specimensof this species
were
collectedby
Lt.W.
P.Trowbridge,atCape
Flattery,W.
T.Gastbrosteus
serratus, Ayres,Ihave
investigatedcarefully,and
foundspeci- ficallydistinctfromitscongeners.Idescribeanotherspeeiesakintoit
and
G.plebeius.Gasterosteus
inteemediushavingthe "
body
plated all over; the peduncleof the tail keeled. Dorsal spines three,moderateindevelopmentand
inconspicuouslj- serratedupon
their edges; anterioroneinsertedimmediately behindthebaseofthe pectorals. In- sertion of ventrals irnder thesecond dorsal spine;theirown
spinebeingserratedupon
bothedges,more
conspicuously above than below,and
their extremities not extendingas faras the tipsofthe ossa innominata. Posteriormargin
of caudal concave."Inhabits
Cape
Flattery,W.
T.,where
itwas
collectedby
Lt.W.
P.Trowbridge, U.S.A.Finally,
under
thename
ofGasterosteus
pugetti,Iintroducea
new
speciesinwhich
the "body
is onlyplated in part. Dorsal spines three, slender,notserratedupon
theiredges; anterior insertedimmedi-
ately behind the baseof pectorals. Insertion of ventrals in advanceof the seconddorsal spine;theirown
spinebeingslender,crenatedupon
itsedgesand
extendingbeyond
thetipsofthe os.w innorainata. Posteriormargin
ofcaudal slightlyemarginated."Fort Steilacoom,
Puget
Sound,W.
T.;collectedby
Dr.Geo. Suckley,U.S.A.Leiostomuslineattts,Ayres, has
come
withinmy
observation.The
speciesis characteristic.Specimens
ofitwere
broughthome by
Dr.J.S. Newberry.Leptogunellus
gracilis,Ayres,Ihave likewiseexamined
on specimens col- lectedby
Dr.Newberry and
labelledby
Dr. Ayres.[June,
GOBIUS
NEWBERRTI
isa small
and
verygi-acefulspecies ofGoby,hithertoundescribed.The
averagesizeof
many
specimens observedisabouttwo
inches orless,thehead
forming the fourth of thetotallength.The
firstdorsal iscontiguousto the second at itsbase,and
isconsiderably lower thanthelatter.The mouth
is deeply cleft, the posterior extremityof the maxillary extending to a vertical line passing posteriorly to theorbit.The
origin of the analissituated alittlebehind the anteriormargin
of thesecond dorsal: bothfinsterminate evenly, asfarascon- cerns thetips of the posterior rays.The
caudal forms the fifthofthe total length.The ground
colorisolivaceous,buttheupperregionsappear blackish withisolated spots of theground
color; theinferiorregions are unicolor.Atherinastoreri,Ayres,is
my
Atherinopsiscaliforniensis.Rhacocheilus
toxotes, Agass.,was
identified on a specimencollectedby
E.Samuels
inTomales
Bay.Hysterocarpus
traskii. Gibbons, could be recognized onaspecimencollected atFortReading by
Drs.J. F.Hammond and John
S.Newberry.Another
speci-men
fromthesame
localityhad no
irregular transversebandsof black,butwas
almostunicolor.Another
species ofviviparousfish,Embiotoca
argyrosoma,iseasily distinguishedfromits congener
by
the brilliant argentine tintofits entirebody,though made
alittledarker alongthe dorsalregionby
a greyish or pinkish hue.The
generalformiselongated; theheadrather small, subconical,rounded
anteriorly,and
contained four timesand
ahalfin thetotal length.The
caudal isdeeply forked.The
posterior extremityof theanal extends a littlemore
posteriorlythanthe dorsal.The
tipsof the pectorals reacha ver- tical linepassingbeyond
the origin of the anal. Specimenswere
collected atSan
Francisco,Cal.,by
Lt.W.
P.Trowbridge, U.S.A.Osmerus
elongatus,Ayres,hasbeen collected atSan
Francisco,Cal.,by
Dr.John
S.Newberry.The
specimenswere
identifiedby
Dr. Ayres.A mostimportant(Iwasalmost goingto say unexpected)discovery of awhite fishwas made bythe party onthe R. R.Surveyof CaliforniaandOregon,com- manded byLt.R.S. Williamson. And since it is different from its hitherto
known
congener,we
will callitCOREGONUS
WILLIAMSONI,as
commemorative
of thatSurvey. Itshead
is rather small,being contained aboutfivetimes inthetotallength,which
measureseleven inches.The mouth
isverysmall
and
the posteriorextremityofthemaxillary does not extendasfarback
as the anteriorrim oftheorbit.The
scalesare large; eighteenrows
ofthem may
be countedbetween
the anteriormargin
ofthe dorsaland
the inser- tionof the ventrals: nineabovethelateralline,and
eightbelowit.The
lateral line,itself, isperfectlystraight.The
caudalfinforked as usual.The
pectorals are rather small. Ihavealludedtothe colorinsayingitwas
awhitefish;add
toita bluishgreyhue
alongthe back. Itwas
collectedby
Dr.Newberry
in theDes Chutesriver, a tributary of theColumbia.In addinga second speciesto the genus Platichthys, the diagnoseof this genus
must
be modifiedso as toread:"
eyes
on
either the right orleft side,"for
Platichthys umbrosus,
which
isthenew
species referred to,hag its eyes on the right,whilst in the speciesformerlydescribed,theyare ontheleft. Itcan also readilybe distin- guished fromitscongenerin havingthebody
completely covered with scales, onthe surface ofsome
ofwhich
prickles or asperities are observed.The
speci-men
before us measures seveninchesand
ahalf,isof auniformblackishbrown hue
onthe right sideand
lightbrown
on theleft. Itwas
collectedby
Lt.W.
P. Trowbridge,U.S. A., at
Cape
Flattery,W.
T.1856.]
I
have
likewise asecond species toadd
tomy
genus Pleuronichthys, taking thisopportunityof correcting a lapsuslingiicewhich
occurredinthe diagnosis of itsgeneric characters: "teethvery inconspicuous, occupyingthe colorless side of thejaws,"instead ofbothsides of thejaw.That
thiswas
amere
accident willappear obviousby
readingthe charactersgiven toParophrys,inwhich
an allusionismade
tothetruestateof things inPleuronichthys.Pleuronichthys
suttulatus,appearstobeasmallerspecies than itscongener; it isalso deeper, less elon- gated,hence
more
of a subcylindricalgeneralform.The
eyes are situatedon
the rightside.The
origin of the dorsal finis not quite even with the anteriormargin
oftheorbit,and
inthat respect the generic diagnosis willundergo
a slight modification.The
largestspecimens observedmeasure
alittleoverthree inches.The ground
colorappearsgreyish black, overwhich
are scattered light spots ajipearinglikeasmany
dropsirregularly dispersed.Specimens were
col- lected inTomales Bay by
E.Samuels.A
specimen of Ophidium, in a too precariousstate of preservation to be de- terminedspecifically,was
foundby
Lt.W.
P.Trowbridge,atS.Farallones,nearSan
Francisco.Another was
collectedby
Dr.Suckleyat Shoalwater Bay,W.
T.,apparentlyofthe
same
species.We
havealso tomention a Sandlaunee, under thename
ofAmmodytes
personatus,thegeneralaspect of
which
isshorterthanits congeners, althoughtheform and
outlineof thebody
arenotmaterially different.We
perceiveno
teeth on the palat.The
posteriorextremityof themaxillary extendstoaverticallinewhich
intersectstheanterior rimoftheorbit.The
origin of the dorsalfin issituated anteriorly to the tips ofthe pectorals.The
base of the caudal fin is black.Specimens were
collected atCape
Flattery,W.
T.,by
Lt.W.
P. Trowbridsre.U.S. A.
Syngnathus
californiensiSj Storer,was
received from Monterey, Cal.,through
the care ofA. S. Taylor.The
specimenissomewhat
imperfect;it isthe largest of thosewhich we
have ex-amined
from thePacific coast.AcciPBNSBR acutirosteis,Ayres,
was brought home by
Dr.Newberry, the specimenhaving
beenlabelledby
Dr.Ayres
inSan
Francisco,where
thespecimenwas
procured.AciPENSER
MEDiROSTRis,Ayrcs,was
receivedinthesame manner
as the pre- ceding.AoiPENSER
TRANSMONTANUS,Rich.,from theColumbia
river,hasbeencollectedby
Dr.Suckley.We
concludeby
referring toa rayof aremarkable genus,Rhinoptera
vespertilio,which was
caught inTomales
Bay,by
E. Samuels.The
specimen before us measures nineteen inchesand
a halffrom the extremity ofthemouth
to the tipofthetail,sixinchesand
three quartersbeing the length ofthebody and head
together.The
width fromthetipofonepectoralfintotheotheristwelve inches. Thereisa smalldorsalfinsituatedupon
the anterior portion of the tail, followedby
a flattened spearshaped spine, serratedupon
its edge.The
tailisvery attenuated, flagelliform, taperinginto a filiform extremity.
The
cephalicregionisaslongasthe rest of thebody. Itsanterior outlineisround- ed.The
eyes arevery prominentand somewhat
raised above the surface of thehead.The
respiratory apertures, fiveinnumber
are transversally elonga- tedand
arrangedupon an
open curve.The
lipsare fringed.The
color is of an uniformbluishslateabove; dullwhitish beneath.