Title Anchovies from the Ryukyu Islands

Author(s) Nishishimamoto, Shinsho

Citation 琉球大学文理学部紀要 理学篇(6): 54-63

Issue Date 1963-05

URL http://hdl.handle.net/20.500.12000/22296

Rights

5４

AnchoviesfromtheRyukyulslanCls

ＳｈｉｎｓｈｏＮＩＳＨＩＳＨＩＭＡＭＯＴＯ

Abstract

Notaxonomicstudyontheanchovies（familyEngraulidae）oftheRyukyu

lslands，referredtotheformerOkinawaPrefectureofJapanincludingthree

groｕｐｓＯｆｉｓｌａｎｄｓｏｆＯｋｉｎａｗａ，ＭｉｙａｋｏａｎｄＹａｅｙａｍａｉｎｔｈｉｓｐａｐｅｒ，ishitherto

made，althoughacertainspeciesisaveryｉｍｐｏｒｔａｎｔｂａｉｔｆｉｓｈｆｏｒｔｈｅｌｏｃａｌ

ｓｋipjackfishery，ThreespeciesofthegenusSZoJePhoγz0s，ｎａｍｅｌｙＳｔｏＪ""0γ"s

goJJjlcgUγ』（BLEEKER)，Ｓ､庇c"cJoMeγoJ0伽sHARDENBERGandS伽zcZjcz`ｓ（VANHAssELT)，

arerecordedanddescribed．

Introduction

Occurrenceofananchovy（familyEngraulidae）called“mizushuren，，ｉｎｔｈｅ

ｗａｔｅｒｓａｄｊａｃｅｎｔｔｏＡｍａｍｉＯｓｈｉｍａａｎｄｉｎｔｈｅＲｙｕｋｙｕｌｓｌａｎｄｓｗａｓreported，

althoughthespecificnamewasnotindicated，bytheJapaneseAgriculture

Bureau')andbyKIsHINouYE2)．ScHMIDT8）recordedS/oJBPﾉzoγ"ｓｊ"cZjc"ｓ（VANHAssELT）

fromKominato，ＡｍａｍｉＯｓｈｉｍａ、RecentlyHAYAsHIandTADoKoRo4）reportedthe

occurrenceofSZoJCP/２０γ"ｓｚｏﾉﾉﾉ"9W'』（BLEEKER）alongthePacificcoastfromthe

southernKyushutothemiddlepartofJapan，andsuggestedtheprobableidentitｙ

ｏｆｔｈｅａｎｃｈｏｖｙｃａｌｌｅｄ“mizushuren,,withthespecies・Ｎｏｔａｘｏｎｏｍｉｃｓｔｕｄｙ，

however，ｈａｓｂｅｅｎｍａｄｅｏｎｔｈｅａｎｃｈｏｖｉｅｓｏｆｔｈｅRyukyulslandswhichis

referred，ｉｎｔｈｉｓｐａｐｅｒ，ｔｏｔｈｅｆｏｒmerOkinawaPrefectureofJapanincｌｕｄｉｎｇ

ｔｈｅｔｈｒｅｅｇｒｏｕｐｓｏｆｉｓｌａｎｄｓｏｆＯｋｉｎａｗａ，ＭｉｙａｋｏａｎｄＹａｅｙａｍａ

Ｗｈｉｌｅｗｏｒｋｉｎｇｉｎaninvestigationonthebaitfishesfortheskipjackfishery

oftheRyukyulslands，theauthorcollected，fromvariouspartsofOkinawa-Jima，

ａｎｕｍｂｅｒｏｆｓｐｅｃｉｍｅｎｓｏｆａｎｅｎｇｒａｕｌｉｄｆｉｓｈcalled“mizu-sururu,’bythelOcal

people，whichwasaveryimportantbaitfishforthelocalskipjackfishermen，

ExaminationofthespecimensindicatedthattheywereS/oJeP〃０，Ｗsハe"`Che/”oわり"s

HARDENBERG・Ａ１０ｎｇｗｉｔｈｔｗｏｓａｍｐｌｅｓｏｆｔｈｅｓｐｅｃｉｅswereco11ectedtwospecimen

ofS/ｏＪ幼"oγ"ｓｊ"cjcz`ｓ（VANHAssELT)．Theauthoralsoco11ectedapostlarｖａｏｆ

Ｓ/o/""oγ"ｓｇｏＪＪｊ"9W'ノ（BLEEKER）atIriomote-jima，andthreespecimensofthe

specieswｅｒｅｇｉｖｅｎｂｙＫＡｗＡＫＡＭＩｏｆｔｈｅＡｂｕｒａｔｓｕＦｉｓｈｉｎｇＣｏ，ｗｈｏｏｂｔａｉｎｅｄｔｈｅｍ

ａｔｔｈｅｓａｍｅｉｓｌａｎｄｆｒｏｍａｆｉｓｈｅｒｍｅｎ，scollection・

Inthispaper，theabove-mentionedthreespeciesｏｆｔｈｅｇｅｎｕｓＳ/０J〃"oｿwsare

recordedanddescribedSofar，ｎｏｏｔｈｅｒｓｐｅｃｉｅｓｏｒｇｅｎｅｒａｏｆｔｈｅｆａｍｉｌｙｈａｖｅ

ｂｅｅｎｆｏｕｎｄｉｎｔｈｅＲｙｕｋｙｕｌｓｌａｎｄｓ・

Thesincereacknow1edgementismadｅｔｏＭｒ・JENKuRoKAwAKAMIofthe

AburatsuFishingCo.，Miyazaki，Japan，whogaveavaluablecollectionofS・

ｇｏﾉﾉﾉ"邸γｉｔｏｔｈｅａｕｔｈｏｒ、Ｍａｎｙｔｈａｎｋｓａｒｅｄｕｅｔｏｔｈｅｆｉｓｈｅｒｍｅｎwhocooperated

incollectingspecimens．

Bull、Ａｒｔｓ＆Sci・Div.，RyukyuUniv．（Math．＆Ｎat・Sci.） 5５

ＫｅｙｔｏｔｈｅＳｐｅｃｉｅｓｏｆＳｔｏＪｅＰ肋γ"sfromRyukyulslands

la，Maxillaryshort,truncatedorbroadlyroundedposteriorly，notreachingjointofmandible，

nevertopreopercle；ｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆｓｎｏｕｔｔｏｒｅａｒｅｎｄｏｆｍａｘｉｌｌａｒｙ５､6-5.9ｉｎ

standardlengthMandiblereachingquitebeyondaverticallinethroughfrontof

anteriornostril；ｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆｓｎｏｕｔｔｏｔｉｐｏｆｌowerjawwhenmouthclosed

９．６－１１．１ｉｎｈｅａｄｌｅｎｇｔｈ・Originｏｆａｎａｌｆａｒｂｅｈｉｎｄｂａｓｅｏｆｄｏｒｓａｌ，generallyunder

orslightlybeforetipsofdorsalrayswhendepressed；lengthofanalbaseabout65

inlengthStoJ"ﾉioγ"szo"伽隼アノ（BLEEKER）

1b、Maxillarylonger，pointedposteriorly，ｒｅａｃｈｉｎｇｔｏｏｒｐａｓｔｒｅａｒｅｎｄｏｆｍａｎｄｉblarjointor

toloweranteriormarginofpreopercle、

２a、Ｏｒｉｇｉｎｏｆａｎａｌｆｉｎｓｌｉｇｈｔｌｙｂｅｈｉｎｄｂａｓｅｏｆｄｏｒｓａｌｏｒｕｎｄｅｒｂａｓｅｓｏｆｌａｓｔｔhreedorsal

rays；１ｅｎｇｔｈｏｆａｎａｌｂａｓｅ５,5-6.1ｉｎｌｅｎｇｔｈＭａｎｄｉｂｌｅｅｎｄｉｎｇｆａｒｂｅｈｉｎｄupper

edgeofgill-opening，anteriorlyreachingonlytoaverticallinethroughposterior

nostril；ｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆｓｎｏｕｔｔｏｔｉｐｏｆｌowerjawwhenmouthclosed45-5.8

ｉｎｈｅａｄ，Distalmarginofdorsaltruncate；whenthefindepressed，ｉｔｓｆｉｒｓｔｒａｙｓ

ｒｅａｃｈｉｎｇｔｏｏｒｐａｓｔｔｉｐｓｏｆｌａｓｔｒａｙｓ，endinggenerallyabovebasesof3rdto5th

branchedanalrays・Ｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆｓｎｏｕｔｔｏｒｅａｒｅｎｄｏｆｍａｘｉｌｌａｒｙ４２－5.1

inlength．ＳｊｏＪｅＰ/zoγ"sPsgzJZjoﾉbeZe”〃6zJsHARDENBERG

２ｂＯｒｉｇｉｎｏｆａｎａｌｆｉｎｕｎｄｅｒｂａｓｅｏｆｌＯｔｈｏｒｌｌｔｈｂｒａｎｃｈｅｄｄｏｒｓａｌｒａｙ；lengthofanalbase

6.3-6.4instandardlength，Mandibleendingslightlybeforeaverticallinethrough

upperedgeofgillOpening，ｒｅａｃｈｉｎｇｎｅａｒｌｙｔｏａｖｅｒｔｉｃａｌｌｉｎｅｔhroughfrontof

anteriornostril；ｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆｓｎｏｕｔｔｏｔｉｐｏｆｌowerjawwhenmouthclosed

8.2-8.5ｉｎｈｅａｄＤｉｓｔａｌｍａｒｇｉｎｏｆｄｏｒｓａｌｆｉｎａlittleconcave；whenthefin

depressed，ｉｔｓｆｉｒｓｔｒａｙｓｒｅａｃｈｉｎｇｏｎｌｙｔｏｏｒｓｌightlypastendofthefinbase，１ast

threeraysreachingmorebehind，１ａｓｔｏｎｅｅｎｄｉｎｇａｂｏｖｅｂａｓｅｓｏｆ６ｔｈｔｏｌOth

branchedanalrays，Ｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆｓｎｏｕｔｔｏｒｅａｒｅｎｄｏｆｍａｘｉｌｌａｒｙ５.2-5.6

ｉｎｌｅｎｇｔｈＳ/oﾉ２，"0γｚ４ｓ刎伽５（VANHAssELT）

ＳＴＯＬＥＰＨＯＲＵＳＺＯＬＬＩＮＧＥＲＩ（BLEEKER）

Japaneseｎａｍｅ：“Taiwan-Ainoko,，

Ｆｉｇ．１

E？〃(z"ＪｊＳｚｏＪ""9℃γjBLEEKER，Jour・IndianArch.，vol３，ｐ､73,1849（typelocality：Macassar，

Celebes)．

SfoJGPﾉｾo,ｗｓｚｏﾉﾉﾉｸ29℃γiBLEEKER，AtlasIchth、Ｉｎｄ，Neerland，vol､６，ｐ､１２６，ｐ１．２２６，ｆi９．２，１８６６－７２

（Java；Sumatra；Bali；Celebes；Amboina)．

Azc"Ｏ脚zoﾉﾉﾉ"gWPjFowLERandBEAN,ProＣ・Ｕ・ＳＮａｔ.Ｍus.，vol62,ｐ､2，１９２２（Takao，Formosa)．

Ａ”ﾉioz）jeJJQzoJJj"9℃γノFowLER，Proc，AcadNat・Sci、Philadelphia，vol,８６，ｐ，６９，ｆi９．４，１９３４

（Bali)．

１．SpecimensStudied

Funauki-Wan，Iriomote-Jima；apostlarva，caughtbySNIsHIsHIMMoTowithadipｎｅｔａｎｄａ

ｌｉｇｈｔａｔｎｉｇｈｔ，０ct、26,1959．

Funaura，Iriomote-Jima；threespecimens，４０．７，３９．５ａｎｄ39.0ｍｍ・instandardlength，from

afishermeninlshigaki-Jima，givenbyJKAwAKAMIofAbratsuFishingCo.，Miyazaki，

Japan，ｃａｕｇｈｔｉｎａｓｕｍｍｅｒｍｏｎｔｈｏｆｌ９５８

Ｔｈｅｄescriptionisbasedonthethreelargerspecimens，ａｎｄｔｈｅｐｏｓｔｌａｒｖａ

ｗａｓｕｓｅｄｏｎｌｙｆｏｒｍakingcounts、Onlyonespecimenwasdissectedforcounting

5６ Nishishimamoto：AnchoviesfromtheRyukyulslands

numberofvertebrae．

２．Description

Certaincountsandmeaｓｕｒｅｍｅｎｔｓｗｅｒｅｍａｄｅｏｎｔｈｅｔｈｒｅｅｌａｒgerspecimens

andthepostlarva（countsonly)，ａｎｄｒａｎｇｅｓｏｆｔｈｅｃｏｕｎｔｓａｎｄｔｈｏｓｅｏｆthe

measurementsexpressedinstanｄａｒｄｌｅｎｇｔｈａｒｅｓｈｏｗｎｉｎｔａｂｌｅｌａｎｄｔablell，

respectively，ａｌｏｎｇｗｉｔｈｓｉｍｉｌａｒｄａｔａｏｎｔｈｅｏｔｈｅｒspecies・

Bodyelongate，moderatelycompressed，itsventralprofilealittlemorecoｎｖｅｘ

ｔｈａｎｔｈｅｄｏｒｓａＬＤｅｐｔｈｏｆｈｅａｄａｔｍｉｄｅｎｄｏｆｏｃｃｉputnearlyequaltothegreatest

depｔｈｏｆｂｏｄｙ・Snoutbluntlypointed，projectinglessthanone-thirditslength

beyondtipoflowerjaw，remarkablyshorterthaneye，alittlelongerthanpupil，

and5.15-5.5inheadlengthDistancefrommidtipｏｆｓｎｏｕｔｔｏｔｉｐｏｆｌｏｗｅｒｊａｗ

ｗｈｅｎｍｏｕｔｈclosed９．６－１１．１ｉｎｈｅａ｡、Horizontaldiameterofeye3､4-3.7ｉｎｈｅａｄ

Ｍａｘｉｌｌａｒｙｓｈｏｒｔａｎｄｔｒｕｎｃａｔedorbroadlyroundedposteriorly，itsupperfree

marginshortandnearlyhorizontal，notreachingfrontofjointofmandible，

nevertopreopercle､Distancefromtipofsnouttorearendofmaxillary1.47-

1.57ｉｎｈｅａｄ・Ｍａｎｄｉｂｌｅｒｅａｃｈｉｎｇｔｏｏｒｐａｓｔａｖｅｒｔｉｃａｌｌｉｎｅｔｈroughmidpoint

betweentipofsnoutandfrontofanteriornostril，endingslightlybehindlower

anteriormarginofpreopercleandslightlybeforeaverticallinethroughupper

edgeofgillopening，Ｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆｌｏｗｅｒｊａｗｔｏｒｅａｒｅｎｄｏｆｍａｎｄｉｂｌｅ

1.34-1.55ｉｎｈｅａｄ、

Distalmarginofdorsaltruncate；ｗｈｅｎｔｈｅｆｉｎｄｅｐｒｅｓｓｅｄ，ｉｔｓｆｉｒｓｔｒａｙｓ

ｒｅａｃｈｉｎｇｔｏｏｒｓｌｉｇｈｔｌｙｐａｓｔｔｈｅｔｉｐｓｏｆｌａｓｔｒａｙｓｅｎｄｉｎｇａｂｏｖｅｏｒｉｇｉｎｏｆａｎａｌｏｒ

ａｂｏｖｅｂａｓｅｓｏｆｕｎｂｒａｎｃｈｅｄｒａｙｓｏｆａｎａＬＯｒｉｇｉｎｏｆａｎalfarbehinddorsalbase，

ｄｉｓｔａｌｍａｒｇｉｎｏｆａｎａｌｆｉｎｃｏｎｃａｖｅ，ｔｈｅｆｉｒｓｔｔｏ７ｔｈｂｒａｎｃｈｅｄｒａｙｓｏｆｔｈｅｆｉｎ

ｒｅａｃｈｉｎｇｂａｓｅｏｆｌＯｔｈｂｒａｎｃｈｅｄｒａywhendepressed・Pectoralfinreaching

beyondtwo-tｈｉｒｄｗａｙｔｏｐｅｌｖｉｃｉｎｓｅｒｔｉｏｎ・Insertionofpelvicfinmidwaybetween

pectoralinsertionandanalOrigin，ornearertopectoral，reachingaverticalline

throughbaｓｅｏｆ３ｒｄｏｒ４ｔｈｂｒａｎｃｈｅｄｄｏｒｓａｌｒａｙ、Caudalfindeeplyforked，１ower

lobeslightlylongerthanuppeｒｏｎｅ・

Scalesdeciduous・Ｔｈｅｌａｓｔａｂｄｏｍｉｎａｌｓｃｕｔｅａｔａｄｉｓｔａｎｃｅｌｏｎｇｅｒｔｈａｎｓｎｏｕｔ

ｆｒｏｍｐｅｌｖｉｃｉｎｓertion・Nearlymaturedovaellipticinshape，ａｎｏｖｕｍｆｒｏｍ

ａｓｐｅｃｉｍｅｎ，３９．５ｍｍｉｎｓｔａｎｄａｒｄｌｅｎｇｔｈ，measureｄ0.4×0.2ｍｍ．Ｄiｆｆｅｒｅｎｃｅ

ｂｅｔｗｅｅｎｔｈｅｎｕｍｂｅｒｓｏｆｐｒecaudalandcaudalvertebrae7・

Colourinformalinbrownabove，grayishwhitebelow，withlateraldark

brownbandsonsides・Ablackspotonocciput・Ｔｉｐａｎｄｂａｃｋｏｆｓｎｏｕｔ，ｔｉｐｏｆ

ｌｏｗｅｒｊａｗ，dorsalfinandcaudalpowderedwithblack・Lowerfinshyaline・Ａ

ｐｉｇｍｅｎｔｅｄｌｉｎｅｆｒｏｍｅｎｄｏｆａｎａｌｂａｓetocaudal・Ｓｍａｌｌｂｌａｃｋｄｏｔｓａｌｏｎｇｔｈｅｓｉｄｅｓｏｆａｎａｌｂase・Ｇｉｌｌｒａｋｅｒｓａｎｄｉｎｔｅｓｔｉｎｅｂｒｏｗｎｉｓｈ．

３．Remarks

Thespecimensfromlriomote-Jimaagreewiththedescriptionsoftheanchovy

presentedbyHAYAsHIandTADoKoRo4)，SHEN5)，FowLER6)，andHARDENBERG7)，although

therearesomedisagreemeｎｔｓｉｎｔｈｅｄｅｓｃｒｉｐｔｉｏｎｓ、Ｔｈｅａｎｃｈｏｖｙｉｓｅａｓｉｌｙ

BulLArts＆Sci，Div.，RyukyuUniv．（Math．＆Ｎat、Sci.） 5７

distinguishedfromtheotherspeciｅｓｆｏｕｎｄｉｎｔｈｅＲｙｕｋｙｕｌｓｌａｎｄｓｂｙｔｈｅkey

presented・

ＴｈｅｆｉｓｈｈａｓｂｅｅｎｋｎｏｗｎｆｒｏｍＭａｄａｇａｓcar，Ｅａｓｔｌｎｄｉｅｓ，Philippines，Tropical

PacificIslands，Taiwan，MiyazakiandWakayamainJapan，ａｎｄｉｓｎｏｗｍａｄｅ

ｋｎｏｗｎｆｒｏｍｔｈｅＲｙｕｋｙｕｌｓｌａｎｄｓ・

HAYAsHIandTADoKoRo8）reportedtｈａｔｔｈｅｃａｔｃｈｏｆｐｏｓｔｌａｒｖａｅｏｆｔｈｅｓｐｅｃｉｅｓ

ｏｎｔｈｅＰａｃｉｆｉｃｃｏａｓｔｏｆＷａｋａｙａｍａＰｒｅｆｅｃｔｕｒｅｄｕｒｉｎｇｔｈｅｐｅｒｉｏｄｆｒｏｍＡｐｒｉｌｌ９５８

ｔｏｌ９５９ｗａｓｅｓｔｉｍａｔｅｄａｔｌ４８ｔｏｎｓ・ＩｎｔｈｅＲｙｕｋｙｕｌｓｌａｎｄｓ，ｔｈｅｆｉｓｈｉｓｎｏｔｕｓｕａｌｌｙ

ｃａｕｇｈｔｂｙｔｈｅfishermen．

Table１．RangesofcertaincountsmadeonthespeciesofSZoJGPﾉWzCsfrom

Ryukyulslandswithnumbersofspecimensexaminedinparentheses

Characters zollingeri pseudoheterolobus iｎｄｉｃｕｓ

Standardlengthinmillimeters・・・・..…・・・・・・・・・

Ｄｏｒｓａｌｒａｙｓ・・・・・・・・・・・・・・・・..・・・・・・・・Ａｎａｌｒａｙｓ・・・・・・・・・・・・・・・…．．・・・・・・・・Ｐｅｃｔｒｏｒａｌｒａｙｓ・・・・・・・・・・・・・・・・．．・・・・Gillrakers：

Ｕｐｐｅｒｌｉｍｂ・・・・・・・・・・・・．.・・・・・・・・Ｌｏｗｅｒｌｉｍｂ・・・・・・・……・・・・・・・・・

Vertebrae：

Precaudal・・……・……．．・・・・…

Caudａ1.............．・・・・・・・・・・・・

Ｔｏｔａｌ・・・・・・・・・・・・・・・・・・・・・・・・・・・・

Ａｂｄｏｍｉｎａｌｓｃｕｔｅｓ・・・・・・・・・・・・・・・・・・・・

9

83.7:８９．０31.0-40.7 4４．０６１．５、川川③③

（２）（２）（２）

（２）(２）

４７

６５

１１５１２

’－１｜’

３４

５３

１１

１２

(34）(34）(34）

13-16

14-19

13-16

1６

１８

14

14-15

２０(20）(20）

21-26

27-30

（１）（１）（１）(３）

(20）(20）(20）(28）

（１）（１）（１）(１）

４７１５

２１４一３

４１４

２２４７

’一’一

１９１５

２１４

１１２５

２２４

ＴａｂｌｅｌＬＲａｎｇｅｓｏｆｍｅａｓｕｒｅｍｅｎｔｓｍａｄｅｏ

Ｒｙｕｋｙｕｌｓｌａｎｄｓａｎｄｒｅｃｏｒｄｅｄｉｎ

ｎｕｍｂｅｒｓｏｆｓｐｅｃｉｍｅｎｓｍｅａ

nspeciesofSZo/eP/DCγ"ｓｆｒｏｍ

ｓｔａｎｄａｒｄｌｅｎｇｔｈ，alongwith

suredinparentheses

Characters zollinger

390-40.7

pseudoheterolobus

44.0-61.5（44）

3.7-4.1（44）5.7-6.7（31）7.0-7.5（10）15.319.2（34）13.2-16.5（34）4.2-5.1（34）5.5-6.8（34）15.9-182（10）7.5-7.8（10）

iｎｄｉｃｕｓ 一山⑭川仰仙仙仰仙仙仰

Standardlengthinmillimeters・・・…Ｌｅｎｇｔｈｏｆｈｅａｄ……・…・…・・・・・…Greatestdepthofbody・・・・………・Ｈｅａｄｄｅｐｔｈａｔｅｎｄｏｆｏｃｃｉｐｕｔ・・・・・・・・Lengthofsnout・・・・..・・・・・・・・・・・・・・・・Ｄｉａｍｅｔｅｒｏｆｅｙｅ・・・・・・・・・・・・・・・・・・・・Maxillarylength（fromsnouttip）・・Ｌｅｎｇｔｈｏｆｍａｎｄｉｂｌｅ．.・・・・…・・・・・・・・・Widthofbonyinterorbitalspace…・Postorbitallengthofhead・・・・．．・・・・ＴｉｐｏｆｓｎｏｕｔｔＯｔｉｐｏｆｌｏｗｅｒｊａｗ

（whenmouthclosed）……・・・…Ｌｅｎｇｔｈｏｆｌｏｎｇｅｓｔｆｉｎｒａｙｏｆ

Ｄｏｒｓａｌ・・・・・・・・・・・・..…・・・・・・・・・

Ａｎａｌ・…・・・…・・・・．．…・・・・・・・・・

Pectoral.．……．.…。..・・・・・・・・

Ｌｅｎｇｔｈｏｆｍｉｄｃａｕｄａｌｆｉｎｒａｙ・・・・・・・・Ｌｅｎｇｔｈｏｆｂａｓｅｏｆｄｏｒｓａｌｆｉｎ・・・・・・・・Ｌｅｎｇｔｈｏｆｂａｓｅｏｆａｎａｌｆｉｎ・・・・．.・・・・Ｓｎｏｕｔｔｉｐｔｏｄｏｒｓａｌｏｒｉｇｉｎ・・・……・Ｓｎｏｕｔｔｉｐｔｏａｎａｌｏｒｉｇｉｎ・……．．…Snouttiptopelvicinsertion・・……Ｐｅｌｖｉｃｉｎｓｅｒｔｉｏｎｔｏａｎａｌｏｒｉｇｉｎ．．・・・・Pectoralinsertiontopelvic・・・・・・・・・・Leastdepthofcaudalpeduncle・・・…Ｌｅｎｇｔｈｏｆｃａｕｄａｌｐｅｄｕｎｃｌｅ・・・・・・・・・・

川③㈹㈹㈹㈹㈹㈹㈹㈹

３４６

５６５７

８

7-89.0

５６

７９２３・・９０・７

・・・０３・・６・

３６６２１５６２７

一一｜’一一一一一

７９７８４６１２１

●●●●●●●●●

３５５９３５５１７

１１

２ ５２０

６５・３

・・８．

＄●

４３７８０５６１８

’●一●●｜’一一

１５９７４２４２６

36.7-40.1（３） 19.0-230（10） 33.5-35.6（２）

３－６９（３）0-10.2（３）1-74（３）0-10.3（２）2-7.8（３）６５（３）9-2.1（３）1.5（３）2.2（３）４－５１（３）8-5.1（３）9-11.5（３）８－５３（３）

7-7.7（10）0-9.6（10）8-8.6（９）2-13.4（10）4-8.2（10）6-6.1（10）8-2.0（34）5-1.6（34）1-2.3（34）9-5.8（34）8-5.5（34）4-12.3（10）5-5.1（10）

７．７ （１）8.9-9.1（２）

8.0 （１）12.7-13.9（２）6.9-7.3（２）6.3-6.4（２）１．８２（１）１．６０（１）２．３ （１）５．３ （１）５．３ （１）

11.2-11.4（２）４．１（１）

６９７０７１

１

６９７０７５１１２４４１４

１１

４４０４

１

Nishishimamoto：AnchoviesfromtheRyukyulslands5８

ＳＴＯＬＥＰＨＯＲＵＳＰＳＥＵＤＯＨＥＴＥＲＯＬＯＢＵＳＨＡRDENBERG

Okinawanname：“ｍｉｚｕｓｕｒｕｒｕ，，

Ｆｉｇ．２

S/ｏｊ幼"oｿwsP5ez4ZfoﾉieZem/06"sHARDENBERG，Nat，TijdschNed、Indie，ｖo１．９３，ｐｔ、２，ｐ、２６１，１９３３

（typelocality：RiouwandLinggaArchipelago；Molucas).…ＳHEN，Inst、Fishr・Ｂｉo1.,Ｍｍ、

ＥＣＯ・ＡｆｆＮａｔ・TaiwanUniv.，ｖｏＬ１，ｎｏ､３，ｐ８０，ｐ１．２，ｆi9．４，１９５９（TamsuiandPescadore

Islands，Taiwan)．

Ａ"choﾙﾉﾉaPSez`cﾉＯＭＧ”/o6aFowLER，Ｕ・ＳＮａｔ．Ｍus.，BulL100，ｖｏＬ１３，ｐｐ、697-698,1941

（compiled)．

１．SpecimensStudied

Motobu，Okinawa-Jima；９５specimens，３９ｔｏ６３ｍｍ・instandardlength，providedfrom

fishermen,ｓｃａｔｃｈｂｙａｄｒｉｖｉｎｇｉｎｔｏｎｅｔ，Ａｕ９．５，１９５９．

Chujo-Wan，Okinawa-Jima；７１specimens，３２ｔｏ６０ｍｍ・instandardlength，providedfrom

fishermen，ｓｃａｔｃｈｂｙａｌｉｆｔｎｅｔａｎｄｕｎｄｅｒｗａｔｅｒｆish-1amps，ａｔnight，Sept，10,1959．

Unten，Okinawa-Jima；８４specimens，３９ｔｏ５２ｍｍ・instandardlength，caughtbySNIsHI‐

ｓＨＩＭＡＭｏＴｏｗｉｔｈａｄｉｐｎｅｔａｎｄａｕｎｄｅｒｗaterfish-1ampatnight，Sept、10,1959．

Kantena-Wan，Okinawa-Jima；６４３specimens，４３ｔｏ６０ｍｍ・instandardlength，ｃａｕｇｈｔｂｙＳ

ＮＩｓＨＩｓＨＩＭＡＭｏＴｏａｎｄａｐａｒtｙｏｆｆｉｓｈｅｒｍｅｎｗｉｔｈｄｉｐｎｅｔｓ，ａｌｉｆｔｎｅｔａｎｄｕｎｄｅｒｗａｔｅｒｆｉｓｈ‐

ｌａｍｐｓａｔｎｉｇｈｔ，Ｍａｙ、１８，１９６１．

Ishikawa，Okinawa-Jima；l82specimens，２５ｔｏ４８ｍｍ、instandardlength，caughtbyS

NIsHIsHIMAMoTowithadiｐｎｅｔａｎｄｕｎｄｅｒｗａｔｅｒｌａｍｐａｔｎｉｇｈｔ，Ｍａｙ４，１９６２．

Shioya-Wan，Okinawa-Jima；５５specimens，３０ｔｏ６０ｍｍ・ｉｎｓｔandardlength，caughtbyS

NIsHIsHIMAMoTowithdipｎｅｔａｎｄｕｎｄｅｒｗａｔｅｒｆｉｓｈ－１ａｍｐａｔnight，Ｍａｒ、24,1962．

Ｍｏｓｔｏｆｔｈｅｓｐｅｃｉｍｅｎｓｕｓｅｄｉｎｔｈｅｓｔｕｄｙｗｅｒｅｃａｕｇｈｔａｔｎｉｇｈｔｗｉｔｈａｄｉｐｎｅｔ

ｏｒａｌｉｆｔｎｅｔａｎｄｕｎｄｅｒｗａｔｅｒｌａｍｐｓａｔcertainbaysandinlets（"Ｗan'，ｉｎ

Japanese）inOkinawa-Jima・Somepostlarvaewerecolledtedalongwithlarger

specimens，ｂｕｔｔｈｅｙａｒｅｎｏｔｕｓｅｄｆｏｒｔｈｅｄｅｓｃｒｉｐｔｉｏｎｉｎｔｈｅｓｔｕｄｙ．

２．Description

Certaincountsandmeaｓｕｒｅｍｅｎｔｓｗｅｒｅｍａｄｅｏｎｖａｒｉａｂｌｅｎｕｍberofspecimens

dependingonthecharacterused（tablelandtablell)．

Bodyelongate，moderatelycompresed，ｉｔｓｄｏｒｓａｌｐｒｏｆｉｌｅａｓｃｏｎｖｅｘａｓｔｈｅ

ｖｅｎｔｒａＬＤｅｐｔｈｏｆｈｅａｄａｔｍｉｄｅｎｄｏｆｏｃｃiputshorterthanthegreatestdepth

ofbody，Snoutblunt，ｐｒｏｊｅｃｔｉｎｇｍｏｒｅｔｈａｎｈａｌｆｏｒｉｎｓｏｍｅcasesabouthalfits

lengthbeyondtｉｐｏｆｌｏｗｅｒｊａｗ，alittleshorterthaneye，ａｎｄ4.0-5.Ｏｉｎｈｅａｄ

Ｄistancefrommidtipofsnouttotipoｆｌｏｗｅｒｊａｗｗｈｅｎｍｏｕｔｈｃｌｏｓｅｄ４､5-5.8ｉｎ

head・Horizontaldiamerterofeye3､5-4.3ｉｎｈｅａｄＭａｘｉｌｌａｒｙｌｏｎｇａｎｄｐｏｉｎｔｅｄ

ｐosteriorly，itsupperfreemarginoblique，alittleconvexornearlytruncate，

generallyreachingwellbeyondjoinｔｏｆｍａｎｄｉｂｌｅａｎｄｑｕｉｔｅｔｏｏｒａｌｉｔtlepast

loweranteriormarginofpreopercle・Ｄｉｓｔｎａｃｅｆｒｏｍｔｉｐｏｆｓｎｏｕｔｔｏｒｅａｒｅｎd

ofmaxillary1.14-Ｌ２９ｉｎｈｅａｄ・ＭａｎｄｉｂｌｅｒｅａｃｈｉｎｇａＶｅｒｔｉｃａｌｌｉｎｅｔhroughrear

nostril，ｅｎｄｉｎｇｕｎｄｅｒｌｏｗｅｒａｎｔｅｒｉｏｒｍａｒｇｉｎofpreopercleandentirelybehind

upperedgeofgillopening，Ｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆｌｏｗｅｒｊａｗｔｏｒｅａｒｅｎｄｏｆｍａｎｄｉｂｌｅ1.47-1.65ｉｎｈｅａｄ．

Bull・Ａｒｔｓ＆Sci・Div.，RyukyuUniv．（Math．＆Ｎat・ＳＣＬ） 5９

．Ｄistalmarginofdorsalfintruncate；ｗｈｅｎｔｈｅｆｉｎｄｅｐｒｅｓＳｅｄ，ｉｔｓｆｉｒｓｔｒａｙｓ

ｒｅａｃｈｉｎｇｔｏｏｒａｌｉｔｔｌｅｐａｓｔｔｉｐｓｏｆｌａｓｔｒａｙｓ，ｅｎｄｉｎｇａｂｏｖｅｔｈｅｂａｓｅｓｏｆ３ｒｄｔｏ

６ｔｈｂｒａｎｃｈｅｄａｎａｌｒａｙｓ・Analoriginslightlybehinddorsalｂａｓｅｏｒｕｎｄｅｒｂａｓｅｓ

ｏｆｌａｓｔｔｈｒｅｅｄｏｒsalrays；distalmarginofanalconcave，ｉｔｓｆｉｒｓｔｔｏ６ｔｈｏｒ７ｔｈ

ｂｒａｎｃｈｅｄｒａｙｓｒｅａｃｈｉｎｇｔｈｅｂａｓｅｏｆｔｈｅｌＯｔｈｏｒｌｌｔｈｂｒａｎｃｈｅｄｒａｙswhendepressed・

Ｐｅｃｔｏｒａｌｆｉｎｒｅａｃｈｉｎｇｎｏｔｑｕｉｔｅｔｗo-thirdwaytopelvicinsertion・Ｉｎｓｅｒｔｉｏｎｏｆ

ｐｅｌｖｉｃｆｉｎｍｉｄｗａｙｂｅｔｗeenpectoralinsertionandanalOrigin，ｒｅａｃｈｉｎｇａｖｅｒｔｉｃａｌ

ｌｉｎｅｔｈｒｏｕｇｈｔｈｅｂａｓｅｓｏｆｕｎｂｒａｎｃｈｅｄｒａｙｓｏｒｆｉｒｓｔｔｗｏｂｒａｎｃｈｅｄｒａｙｓｏｆｄｏｒｓａｌ

ｆｉｎ・Caudalfindeeplyforked，１ｏｗｅｒｌｏｂｅｓｏｍｅｗｈａｔｌｏｎｇｅｒｔｈａｎｔｈｅｕpperone・

Ｎｅａｒｌｙｍａｔｕｒｅｄｏｖａｅｌｌｉｐｔｉｃｉｎｓｈａｐｅ，ａｎｏｖｕｍｆｒｏｍａｓｐｅｃｉｍｅｎｏｆ５７､５ｍｍ・

instandardlength，ｃａｕｇｈｔａｔＫａｎｔｅｎａ－ｗａｎｏｎＭａｙｌ８，1961,measureｄ0.5ｍｍ．×

0.3ｍｍ・Scalesdeciduous；ｔｈｅｌａｓｔａｂｄｏｍｉｎａｌｓｃｕｔｅａｔａｄｉｓｔａｎｃｅｆｒｏｍｔｉｐｏｆ

ｉｔｓｓｐｉｎｅｔｏｐｅｌｖｉｃｉｎｓｅｒｔｉｏｎｎｅａｒｌｙｅｑｕａｌｔｏｓｎｏｕｔｌｅｎｇｔｈｏｒｌｅｓｓ，dependingｏｎ

ｎｕｍｂｅｒｏｆｓｃｕｔｅｓｐｒｅｓｅｎｔ・Ｄｉｆｆｅｒｅｎｃｅｂｅｔｗｅｅｎｔｈｅｎｕｍｂｅｒｓｏｆｐrecaudaland

caudalvertebraeO-5，usually3-4．

Colourhyalinewithasilverylaterａｌｂａｎｄｆｒｏｍｈｅａｄｔｏｃａｕｄａｌ・Ablack

spotonocciput、Ｔｉｐａｎｄｂａｃｋｏｆｓｎｏｕｔａｎｄｃａｕｄａｌｆｉｎｐowderedwithblack，

ｏｔｈｅｒｆｉｎｓｈｙａｌｉｎｅ・Ｓｍａｌｌｄｏｔｓａｌｏｎｇｔｈｅｓｉｄｅｓｏｆａｎａｌｂａｓｅ，ａｎｄａｐｉｇｍｅｎｔｅｄ

ｌｉｎｅｆｒｏｍｅｎｄｏｆｔｈｅｆｉｎｂａｓｅｔｏｃａｕｄａｌ、Ｇｉｌｌｒａｋｅｒｓａｎｄｉｎｔｅｓｔｉｎｅｂｌａｃｋ・Ｔｈｅ

Ｏｋｉｎａｗａｎｌｏｃａｌｎａｍｅ“ｍｉｚｕｓｕｒｕｒｕ,,isreferredtothehyalinecoloratiｏｎ．

３．EcoIogicalNote

ThespecieswasfoundalongthecoastofOkinawa-Jima，beingespecially

aboundantinbaysandinlets・DuringtheskipjackfishingseasonfromAprilto

September，ｔｈｅｆｉｓｈｉｓｉｎｔｅｎｓｉｖｅｌｙｃａｕｇｈｔｂｙｔｈｅｌｏｃａｌｂａｉｔｆｉｓｈｅｒｍｅｎｗｉｔｈａｋｉｎｄ

ｏｆｌｉｆｔｎｅｔａｎｄｕｎｄｅｒｗａｔｅｒｆｉｓｈ－ｌａｍｐｓａｔｎｉｇｈｔ，Ｔｈｅreisconsiderablefluctuation

inaｎｎｕａｌｃａｔｃｈ，whichaffectsdirectlythefishingactivitiesandthecatchof

skipjack、

Ｗｈｅｎｔｈｅａｎｃｖｏｖｉｅｓｗｅｒｅａｔｒａｃｔｅｄｂｙａｂｒｉｇｈｔｌｉｇｈｔａｔｎｉｇｈｔ，ｉｔｗａｓｏｂｓｅｒｖｅｄ

ｔｈａｔｔｈｅｙｇａｔｈｅｒｅｄａｔｔｈｅｓｕｒｆａｃｅａｒｏｕｎｄｔｈｅｌｉｇｈｔｗｈｅｎｓchoolwassmall，ｂｕｔ

ｕｓｕａｌｌｙｒｅｍａｉｎｅｄａｔａｄｅｐｔｈｏｆａｂｏｕｔｏｎｅｍｅｔｅｒｏｒｍｏｒｅ，ｓｗｉｍｉｎｇａｒｏｕｎｄｔｈｅｌｉｇｈｔ，

whentheschoolwaslarge・Postlarvaewerefoundgenerallyatｔｈｅｓｕｒｆａｃｅｃｌｏｓｅ

ｔｏｔｈｅｌｉｇｈｔ・

Thepostlarvalfishoccuredthrougｈｏｕｔｔｈｅｆｉｓｈｉｎｇｓｅａｓｏｎ，beingespecially

abundantinearlyｍｏｎｔｈｓｏｆｔｈｅｓｅａｓｏｎ、Ｔｈｉｓｉｎｄｉｃａｔｅｓｔｈｅｏｃｃｕｒｒｅｎｃｅｏｆａ

ｈeighｔｏｆｓｐａｗｎｉｎｇｓｅａｓｏｎｉｎｗｉｎｔｅｒｍｏｎｔｈｓ，ａｌｔｈｏｕｇｈｓｐａｗｎｉｎｇｍａｙｔａｋｅｐｌａｃｅ

ａｌｌｔｈｅｙｅａｒｒｏｕｎｄ．

４．Remarks

ldentificationofthespecｉｍｅｎｓｗａｓｍａｄｅｂｙｃｏｍｐａｒｉｎｇｗｉｔｈｔｈｅdescriptions

ofthespecispresentedbyHARDENBERG7）ａｎｄｂｙＳＨＥＮ５)．Ｔｈｅｙａｇｒｅｅｗｉｔｈｔｈｅ

ｄｅｓｃｒｉｐｔｉｏｎｓｉｎａｌｌｒｅｓｐｅｃｔｓｅｘｃｅｐｔｉｎｔｈｅｃｏｕｎｔｓｏｆgillrakers，beinggreaterin

nlIrnbers・

ＴｈｅａｎｃｈｏｖｙｈａｄｂｅｅｎｋｎｏｗｎｆｒｏｍＥａｓｔｌｎｄｉｅｓａｎｄＴａｉｗａｎ，ａｎｄｉｓｎｏｗｍａｄｅ

6０ Nishishimamoto：AnchoviesfromtheRyukyulslands

ｋｎｏｗｎｆｒｏｍｔｈｅＲｙｕｋｙｕｌｓｌａｎｄｓ．

SＴＯＬＥＰＨＯＲＵＳＩＮＤＩＣＵＳ（VANHAssELT）

Japaneseｎａｍｅ：“Indo-Ainoko，，

Ｆｉｇ．３

E"97,"JjsMiCuzVANHAssELT，A1gemeinKonst-Letterbode，ｐ､329,1823（typelocality：Java)．

SZoJeP/20,WｓノクzdiC"sBLEEKER，AtlasIchth，Ind・Neerland，vol、６，ｐ、１２７，ｐ１．２５９，ｆi9.2,1866-72（Eastlndies)．

A'zchoDmj"cﾉjazJoRDANandEvERMANN，Proc・ｕｓ．Ｎat．Ｍus.，ｖｏｌ､25,ｐ､328,1902Formosa).…

Schmidt，Trans、PacificComm・Acad・Sci．Ｕ・ＳＳ．Ｒ，vol、１１，ｐ､１７７，１９３１（Kominato，

ＡｍａｍｉOshima)．

A7ccﾉﾉ０２ﾉﾉeﾉﾉZzj〃jazFowLER，Proc，Acad・Sci、Philadelphia，vol､86,ｐ､69,1934（Saneer；Bale)．

１．SpecimensStudied

Motobu，Okinawa-Jima；onespecimensdamaged，８９.Oinstandardlength，providedfrom

fishermen,ｓｃａｔｃｈｂｙａｄｒｉｖｉｎｇｉｎｔｏｎｅｔ，Ａｕ９．５，１９５９．

Chujo-Wan，Okinawa-Jima；onespecimens，８３．７ｍｍ、instandardlength，providedfrom

fishermen,ｓｃａｔｃｈｂｙａｌｉｆｔｎｅｔａｎｄｕｎｄｅｒｗａｔｅｒｆish-1aｍｐｓａｔｎｉｇｈｔ，Sept、３，１９５９．

Ｏｎｅｏｆｔｈｅｓｐｅｃｉｍｅｎｓｗａｓｄａｍａｇｅｄ，ｓｏｔｈａｔｎｕｍｂｅｒｏｆｍｅａｓｕｒｅｍｅｎｔｓｗａｓ

limited・Ｏｎｌｙｔｈｅｄａｍａｇｅｄｓｐｅｃｉｍｅｎｗａｓdissectedforcountingnumberofvertebrae．

２．Description

Certainmeasurementsｗｅｒｅｍａｄｅｏｎｔｈｅｔｗｏｓｐｃｉｍｅｎｓ，ａｎｄｒａｎｇｅｓｏｆｔｈｅ

ｃｏｕｎｔｓａｎｄｔｈｏｓｅｏｆthemeasurementsexpressedinstandardlengthareshown

intablelandtableILrespectively・

Bodyelongate，slightlycompressed，itsventralprofilealittlemoreconｖｅｘ

ｔｈａｎｔｈｅｄｏｒｓａＬＤｅｐｔｈｏｆｈｅadatmidendofocciputconsiderablysmallerthan

thegreatestdepthofbody・Snoutbluntlyrounded，projectingaboutone-third

itslenｇｔｈｂｅｙｏｎｄｔｉｐｏｆｌｏｗｅｒｊａｗ，shorterthaneye，andabout44inhead

length・Distancefrommidtipofsnouttotipｏｆｌｏｗｅｒｊａｗｗｈｅｎｍｏｕｔｈｃｌｏｓｅｄ

８､2-8.5ｉｎｈｅａｄ，Horizontaｌｄｉａｍｅｔｅｒｏｆｅｙｅ３､４ｉｎｈｅａｄ・Ｍａｘｉｌｌａｒｙｌｏｎｇａｎｄ

ｂｌｕｎｔｌｙｐｏｉｎｔｅｄposteriorly，ｉｔsupperfreemarginbroadlyrounded，reachingend

ofjointofmandibleandtoloweranteriormarginofpreopercle、Ｄｉｓｔａｎｃｅｆｒｏｍ

ｔｉｐｏｆｓｎｏｕｔｔｏｒｅａｒｅｎｄｏｆｍａｘｉｌｌａｒｙ1.28-1.33ｉｎｈｅａｄ・Ｍａｎdiblereaching

nearlytoaverticaｌｌｉｎｅｔｈｒｏｕｇｈｔｈｅｆｒｏｎｔｍａｒｇｉｎｏｆａｎteriornostril，endingunderloweranteriormarginofpreopercleandslightlybeforeaverticalline

throughupperedgeofgillopeningDistancefromtipofloｗｅｒｊａｗｔｏｒｅａｒｅｎｄｏｆｍａｎｄｉｂｌｅ1.57-1.58ｉｎhead・

Ｔｈｅｄｉｓｔａｌｍａｒｇｉｎｏｆｄｏｒｓａｌｆｉｎｓｏｍｅwhatconcave；ｗｈｅｎｔｈｅfindepressed，ｉｔｓｆｉｒｓｔｂｒａｎｃｈｅｄｒａｙｓｒｅａｃｈｉｎｇｔｏｏｒａｌｉｔｔｌｅｐａｓｔｅｎｄｏｆｔｈｅｆｉｎｂａｓｅ，１ａｓｔｔｈｒｅｅ

ｒａｙｓｒｅａｃｈｉｎｇｍｏｒｅｂｅｈｉｎｄ，１ａｓｔｏｎｅｅｎｄｉｎｇａｂｏｖｅｔｈｅｂａｓｅｓｏｆ６ｔｈｔｏｌＯｔｈ

ｂｒａｎｃｈｅｄａｎａｌｒａｙｓ・ＯｒｉｇｉｎｏｆａｎａｌｕｎｄｅｒｔｈｅｂａｓｅｏｆｌＯｔｈorllthbrancheddorsal

rays；distalmarginofanalfinconcave，ｉｔｓｆｉｒｓｔｔｏ６ｔｈｏｒ７ｔｈｂｒａｎｃｈｅｄｒａｙｓ

BulLArts＆Sci・Div.，RyukyuUniv．（Math．＆Ｎat・Sci.） ､６１

ｒｅａｃｈｉｎｇｔｈｅｂａｓｅｓｏｆｌＯｔｈｏｒｌｌｔｈｂｒanchedraywhendepressed・Pelvicfin

reachingnearlytwo-thirdwaytopelVicinsertion、Ｉｎｓｅｒｔｉｏｎｏｆｐｅｌｖｉｃｆｉｎｍｉｄｗａｙ

ｂｅｔｗeenpectoralinsertionandanalOrigin，reachingnotquitetoaverticalline

throughoriginofdorsalfin・Caudalfindeeplyforked，lｏｗｅｒｌobealittlelonger

thantheupperｏｎｅ・

Scalesdeciduous，４０inmedianlateralseries，９transveresly，１９predorsalin

aspecimen・Thelastabdominalscuteatadistanｃｅｆｒｏｍｔｉｐｏｆｉｔｓｓｐｉｎｅｔｏ

ｐｅｌｖｉｃｉｎｓｅｒｔｉｏｎｌｅｓｓｔｈａｎｓｎｏｕｔｌｅｎｇｔｈ・Onespecimendissectedshowedno

differencebetweenthenumbersofprecaudalandcaudalvertebrae・

Colourofthespecimenspreservedinformalinchangedsothatthelateral

bandswereonlytracedonsides・Ｂ１ａｃｋｓｐｏｔｓｏｎａｎｄｂｅｈｉｎｄｏｃｃｉｐｕｔ・Ｔｉｐａｎｄ

ｂａｃｋｏｆｓｎｏｕｔ，middorsallineandcaudalpowderedwithblack・Innersideof

operculumbrownish・Gillrakerssomewhatpigmeｎｔｅｄ．

３．Ｒｅｍａｒｋｇ

ＴｈｅｔｗｏｓｐｅｃｉｍｅｎｓａｇｒｅｅｗｉｔhthedescriptionsmadebyJoRDANandSEAL9)，

HARDENBERG7)，RoxAs10)，FowLER6)，ａｎｄＳＨＥＮ５)．Ｔｈｅｙｄｉｆｆｅｒｆｒｏｍｔｈｅｓｐｅｃｉｍｅｎｓ

ｒｅｐｏrtedbyScHMIDT3）ｆｒｏｍＡｍａｍｉＯｓｈｉｍａ，accordingtohisdescription，ｉｎｔｈｅ

Ｏｒｉｇｉｎｏｆａｎａｌｆｉｎ，beingunderthedorsalbaseinsteadｏｆｂｅｉｎｇｅｎｔｉｒｅｌｙｂｅｈｉｎｄ

ｔｈｅｄｏｒｓａｌbase・Hesuggestedthathisspecimensprobablyrepresentedanorthern

subspeciesorrace・ＩｔｉｓａｌｓｏｐossiblethathisspecimensareS・PSC"CJC〃cjcγo/obzJs

HARDENBERGratherthanS・ノ"cZjc"s,ｓｉｎｃｅｔｈｅｆｏｒｍｅｒｓｐｅｃｉｅｓｗａｓｎｏｔｙｅｔｅｓｔａｂｌｉｓｈｅｄ

ａｔｔｈｅｔｉｍｅｏｆｈｉｓｒｅｐｏｒt・HAYAsHIandTADoKoRo4）consideredthatS.ｊ"djcz`sfrom

Kochi，firSterroneous1yreportedasA"c/zozﾉﾉeJJaPsc"cZoMcγo/o6a（HARDENBERG）and

laterthespeciationwascorrectedbyKAMoHARA''''2)，ｗａｓａｓｙｎｏｎｙｍｏｆＳ、

ｇｏﾉﾉﾉ"邸ﾂﾞﾉ．Additionalinvestigationsareneededforfurtherdiscussions．

References

1）JapaneseAgricultureBureau，Dept，Agr・Ｃｏｍｍ.，1891．Preliminaryreportuponthe

fisheriesofJapan，１(1)，103pp

2）Kishinouye，K1908Notesonthenaturalhistoryofthesardine．Ｊour、Ｉｍｐ・Fisher・

Bur.，１４(3)，pp71-105，pls、13-21.

3）Schmidt，ＰＪ、1931．ＡｎａｄｄｉｔｉｏｎａｌｌｉｓｔｏｆｔｈｅｆｉｓｈｅｓｏｆｔheRiu-Kiulslandswithdes‐

criptionofPseudochromichtysriuｋｉａｎｕｓｎ，９．，．ｓｐ，Trans・PacificComm、Ａｃａｄ・

Aci・ＵＳＳＲ，２，ｐｐｌ７７-185.

4）Hayashi，Ｓ，andATadokoro、1962．OccurrenceoftheTaiwan-Ainoko，Stolephorus

zollinger（B1eeker)，ｉｎJapan、Japan・SOC、Sci、Fisher.，ＢｕｌＬ，２８(1)，ｐｐ26-29.

5）Shen，Ｓ1959．AnchoviesfoundinTaiwan・Inst・Fisher・Ｂｉo1.,Ｍin・Econ・ＡｆｆＮａｔ・

TaiwanUniv.，１(3)，pp24-37，pls、1-3.

6）Fowler，nＷ、194LThefishesofthegroupsE1asmobranchii，Holocephali，Isospondyli，

ａｎｄＯｓｔａｒｉｏｐｈｙｓｉｏｂｔａｉｎｅｄｂｙｔｈｅＵｎitedStatesBureauofFisheriesSteａｍｅｒ

‘`A1batross，，ｉｎｌ９０７ｔｏｌ９１０，chieflyinthePhilippinelslandandadjacentseasU．

Ｓ、Nat．Ｍus.，Bull、１００，１３、ｐｐ・ｉ－ｘ，1-879,figs、１－３０．

７）Hardenberg，ＪＤ．Ｆ、１９３４SomeremarksonthegenusStolephorusLacepedeinthe

lndo-AustralianArchipelago・Treubia，１４(3)，pp313-375．

6２ Nishishimamoto：AnchoviesfromtheRyukyulslands

８）Hayashi,Ｓ､，andATadOkoro、1962．ＣａｔｃｈｏｆｔｈｅＴａｉｗａｎ－ＡｉｎｏｋｏｉｎｔｈｅａｎchovyfishingareaaroundJapan・Japan、ＳＯＣ、Sci・Fisher.，Bull.，２８(1)，ｐｐ・３Ｄ３３．

９）ＪｏｒｄａｎＤＳ.，ａｎｄＡ・SeaL1925・ReviewoftheEngraulidae，withdescriptionsofnewandrarespecies・Bull．Ｍus・Ｃｏｍｐ・ZooLHarvardCol１．，６７（11)，ｐｐ、355-418.

10）Roxas，Ｈ、Ａ，1934．AreviewofPhilippineisospondylousfishesPhilippineJourn・Sci.，５５(3)，ｐｐ、231-295,ｐｌｓｌ-3.

11）Kamohara，Ｔ､，1952．AdditionstothefishfaunaofProv・Tosa，Japan・KochiUniv.，Rept.，Nat、Sci・’２(2)，ｐｐｌ－１０，figs、１－３．

１２），1958．AcatalogueofFishesofKochiPrefecture（PrvinceTosa)，Japan、ＵｓａＭａｒ，ＢｉｏＬＳｔ、Repot・'５(1)，ｐｐｌ－７６．

BulLArts＆Sci・Div.，RyukyuUniv．（Math．＆Ｎat・Sci.） 6３

P1ate

⑧

Fig.1SZoJゆんolwszoJJj"深γ』（B1eeker)，４０．７ｍｍ、instandardlength，partlystained

Ｆｉｇ．２．SZolGPﾉiomsps2Mo肱emJo6zfsHardenberg，５９ｍｍ・instandardlength．

Fig.３．ｓ/oJGPholw〕伽jczCs（VanHasselt)，８３．７ｍｍ・instandardlength