The Gempylid,Nesiarchus Nasutus from Japan and the Sulu Sea

Japanese Journal of Ichthyology 魚類学雑誌29巻4号1983年 Vol.29,No.41983

The Gempylid,Nesiarchus nasutus from Japan and the Sulu Sea

Izumi Nakamura,Eiichi Fujii and Takao Arai ReceivedJune 16,1982) (

Abstract Two juvenile specimens of a gempylid species obtained from Suruga Bay,Japan and the southern Sulu Sea were identified as Nesiarchus nasutus Johnson originally described from the Atlantic Ocean.These are first records of N.nasutus in Japan and the Sulu Sea.Habitat and distribution of N.nasutus are briefly discussed.A method of measurements for the Gempylidae is proposed.

A rather rare member of the family Gempyl- Thyrsitoides marleyi Fowler idae,Nesiarchus nasutus Johnson,1862,had Nagatachikamasu been only known from the North Atlantic until Methods the review by Parin and Bekker(1972)who reported it from the tropical South Pacific, Measurements shown in Fig.1 are defined South Indian and tropical Atlantic oceans. as:1.total length—from anteriormost part of Recently this species was recorded from Mariana head(upper or lower jaw)to posteriormost tip Islands(Parin,1976)and New Zealand(Naka- of caudal fin when caudal rays squeezed togeth- mura et al.,1981). er 2.fork length—measured from tip of snout Two juvenile gempylid specimens recently to middle point on posterior margin of middle obtained from the waters of Japan and the Sulu caudal rays ;3.standard length—measured from Sea were identified as Nesiarchus nasutus. tip of snout to caudal base(theoretically posteri- These are the first records of this species in Japan or margin of hypural bones);4.head length— and the Sulu Sea respectively.Consequently, measured from tip of snout to most distant eleven species of the Gempylidae are now known point on opercular membrane;5.snout length— from Japan.Because we feel that a revisional measured from tip of snout to anterior margin work on the genera of Gempylidae is needed, of fleshy orbit;6.length of upper jaw-meas- the following eleven species are arranged alpha- ured from anteriormost point of premaxillary betically(scientific names followed by Japanese to posteriormost point of maxillary;7.length names): of orbit—greatest distance between free orbital Diplospinus multistriatus Maul rims;8.length of eye-greatest distance between. Hosokurotachi margins of eye-ball ;9.postorbital length of Epinnula magistralis Poey Aosumiyaki head—greatest distance between posterior Gempylus serpens Cuvier Kurotachikamasu margin of fleshy orbit and membranous opercular Lepidocybium flavobrunneum(Smith) margin;10.suborbital width-least measurement Aburasokomutsu from fleshy orbit to supramaxillary or maxillary; Nealotus tripes Johnson Furaikamasu 11.interorbital width-least measurement be- Neoepinnula orientalis(Gilchrist et Von Bonde) tween uppermost point on fleshy margin of Toyokamasu orbits;12.body depth—greatest vertical distance Nesiarchus nasutus Johnson between dorsal and ventral body margins;13. Hashinagakurotachi body width—measured at widest point ;14. (New Japanese name) first predorsal length—measured from tip of Promethichthys prometheus(Cuvier) snout to orgin of first dorsal fin;15.second Kuroshibikamasu predorsal length—measured from tip of snout Rexea prometheoides(Bleeker) to origin of second dorsal fin;16 prepectoral Kagokamasu length—measured from tip of snout to insertion Ruvettus pretiosus Cocco Baramutsu of anterior basal margin of pectoral fin;17.

•\ 408•\— Nakamura,Fujii and Arai:Gempylid Description

Fig.1.Measurements for the Gempylidae.Explanation of measurements and corresponding numbers given in text under methods.

prepelvic length—measured from tip of snout of dorsalmost ray to tip of fin;34.length of to intersection of anterior basal margin of pelvic longest pectoral ray-easured from base of fin with belly when fin is held erect;18.preanal longest ray to its tip;35.length of pelvic spine- length—measured from tip of snout to origin measured from base of spine to its tip;36.length of anal fin(including detached spines);19. of longest pelvic soft ray-easured from base preanus length—measured from tip of snout of longest soft ray to its tip;37.length of first to anterior margin of anus;20.length of tail- dorsal base—measured from origin of first dorsal measured from origin of anal fin(including fin to origin of second dorsal fin;38.length of detached spines)to base of middle caudal rays; second dorsal base—measured from origin to 21.length of caudal peduncle-oblique distance end of posteriormost ray base(including finlets between end of anal base and base of middle if present);39.length of anal base—measured caudal rays;22.depth of caudal peduncle- from origin(excluding detached spines)to end least depth of caudal peduncle;23.width of of posteriormost ray base(including finlets if caudal peduncle-measured at origin of upper present).Counts were taken in accordance lobe of caudal fin;24.length of abdomen- with Hubbs and Lagler(1958).Radiographs measured from origin of pelvic fin to origin of of skeletal structures were taken to observe anal fin(including spines);25.height of first osteological features.Abbreviations used are as spine of first dorsal fin-measured from base follows:BMNH-British Museum(Natural of first spine to its tip;26.length of longest History),London;BSKU-Department of Bi- first dorsal spine-measured from base of longest ology,Faculty of Sciences,Kochi University, spine to its tip;27.height of second dorsal fin- Kochi;FRSKU-Fisheries Research Station, measured from origin of second dorsal fin to Kyoto University,Maizuru;USNM—United tip of anterior lobe;28.length of longest second States National Museum,Washington,D.C. dorsal ray-measured from base of longest ray to its tip;29.height of anal fin-easured Nesiarchus nasutus Johnson,1862 from origin of anal fin to tip of anterior lobe; (New Japanese name:Hashinagakurotachi) 30.length of first anal spine-easured from (Figs.2•`4) base of first spine to its tip;31.length of second Nesiarchus nasutus Johnson,1862:173•`175,pl. anal spinem-easured from base of second 22(type-locality:Madeira;holotype:BMNH spine to its tip;32.length of longest anal ray- 1862.6.14.13). measured from base of longest ray to its tip; Prometheus paradoxus Capello,1867:260,pl . 33.length of pectoral fin-easured from base 4(type-locality:Eastern Atlantic) .

―409― 魚類学雑誌Japan.J.Ichthyol.29(4),1983

B C

Fig.2.A:Juvenile of Nesiarchus nasutus(FRSKU S1605,149.4mm SL)stranded on Miho beach,Shizu- oka Pref.Japan.B:Fin spines in anterior view of a 149.4mm SL juvenile(FRSKU S1605).From left to right:Pelvic spine of left side,6th spine of first dorsal fin,1st spine of anal fin and 2nd spine of anal fin.Scales indicate 1mm.C:Fin spines in anterior view of a 104.4mm SL juvenile(BSKU 16014).From left to right:pelvic spine of left side,6th spine of first dorsal fin,1st spine of anal fin and 2nd spine of anal fin.Scales indicate 1mm.

Nesiarchus nasutus:Steindachner,1867:103, Goode and Bean,1895:519(new generic name Escolar proposed);Jordan and Ever- pl.9;Giinther,1887:37;Goode and Bean, 1895:197•`98,1 fig.;Holt and Byrne,1909: mann,1898:2843;Halkett,1913:90;Vladikov 279;Roule,1927:9,1 fig.;Borodin,1931:79; and Mackenzie,1935:85,1 fig. de Buen,1935:99,pl.23(fig.45);Nobre, Bipinnula violacea:Jordan and Evermann, 1935:264.265,pl.37(fig.120);Fowler,1936: 1896:878•`879(new generic name Bipinnula 633 634,fig.286;Noronha and Sarmento, proposed). 1948:117;Forest and Legendre,1950:1; Material examined.BSKU 16014,101.4mm Lozano y Ray,1952:546,pl.42(fig.4); SL,the Sulu Sea(5•‹43'1"N,119•‹47'0"E),sandy Brandes et al.,1953:47•`48;Grey,1953:136 mud at depth of 460•`515m,caught by beam 137,139;Nunes,1953:180•`181,1 color trawl of R.V.Hakuho Maru at speed of 0.3 fig.;Rost,1954:1•`4,fig.1;Voss,1954:124•` knots,06:30•`07:33,June 10,1972;FRSKU 135,figs.3•`5;Grey,1955:298,fig.55; S1605,149.4mm SL,Miho,Suruga Bay, Tucker,1956:122•`127,fig.22;Rollefsen Shizuoka,Japan,stranded on beach and col- et al.,1960:164;Jonsson,1969:160•`161; lected by Takao Arai and Tsutomu Miyake on Wheeler,1969:384,fig.125;Hognestad,1970: February 4,1974. 116•`117;Quero,1970:280•`282;Parin and Description.Counts and measurements are Bekker,1972:148•`151,figs.12•`13;Parin given in Table 1.Body extremely elongate and Bekker,1973:459;Parin et al.,1973:140; and fairly compressed(Fig.2).Scales absent Parin et al.,1974:121;Wheeler,1975:263,1 or completely peeled off.Head large,more fig.;Parin,1976:200;Parin and Golovan, than 1/4 of standard length.Snout elongate, 1976:268;Parin et al.,1978:178;Golovan, conical,acutely pointed;lower jaw also sharply 1978:277. pointed,projecting beyond tip of snout.A Thyrsitops violaceus Bean,1887:513•`514(type- conical dermal process at tip of each jaw. locality:Le Have Bank,south of Newfound- Mouth very large,maxillary extending nearly land,125 fathoms;type:USNM 39278). below anterior edge of eye.Three non-de- Thyrsitops violaceus:Goode and Bean,1895: pressible fangs and 3 scars presumably of missing fangs(FRSKU S1605),6 fangs,3 depressible 195•`196,pl.57(fig.209). Escolar violaceus:Jordan and Evermann in and 3 non-depressible(BSKU 16014)at sym-

―410― Nakamura,Fujii and Arai:Gempylid Description

Table 1.Measurements and counts of Nesiarchus nasutus.Measurements are in mm followed by in parentheses percentages of the standard length .

physis of upper jaw.Lateral premaxillary Gill rakers rudimentary,many fine spinescent teeth uniserial,compressed and caniniform, rakers on first gill arch.Pseudobranchial fila- those of lower jaw(anteriormost one larger than ments developed.No spines on postorbital about 10 remainders)larger than those of upper region.Left and right gill membranes not jaw(about 10).No teeth on vomer or palatines. united to each other,free from isthmus.Nostrils

―411― 魚類学雑誌Japan.J.Ichthyo.l.29(4),1983

Fig.3 .Rasiogaph a jucenile specimen of Nesiarchus(FRSKU S1605,149.4mm Sl. round and.van wRmled;posterior one larger man anterior one.Eye moderate in size, brot nish.tip of caudal fin. closer to margin ofomrc than mtip of Osteological features observed from the radio- snout interorbital possessing a longitudinal graphs(Fig.3):both upper and iower jaws ateral line single,inserted furrow albove stout tind h.asing well-developed dentition; upper margin of opecle.gradually curved ncurocraniunt extremely elongate;first vertebra vented and posteriorly running along middle short.less than hall as long as second vertebra; of body to caudal fin base.First dorsal inserte postcicith.rum elongate and slender;vertebrae d slightly anteriorly and dead Of upper elongate,except first and posteriormost three angle of opercle,its Ww extremely long when short;neural and haenial spines slender;infer compared.%second dorsal fin base.Second ntuscular hones develormed only in anterior dorsal fin with.a y 3z anteriorly.Anal fin part of body;vertebrae nun.rher 21)I4-3d two detached dagger-shapedwith spinet; forked caudal fin supported by last three verte- anteriorly.Path dorsal and anal has situated brae;ham of caudal fin rays not deeply torled poste]a/y on body with their bases of about and lirrnl^ attached only to distal portions of ol length.Pectoral In rather large and l neural spine,3 epurals,5 hypurals,1 parhy- extending beyond lateral line in 149,4 as SL pniral and 2.hcumal spines., specimen FERSEU S1605).,but smal and not Habitat.and distribution.V.itrenisiii is ocearlie reaching lateral line in the eRr 101.4mm SL and benthopelagie,living near the surface to a specimen(BSKr 16011).Pelvic fin fully de-celoped considerable depth(about 1000m).Adults of inserted a little behind.base of yd this species are usually found in deeper water dorsal spine,that of 101.4mm SL specimen than the young and their food consists of prac- (RSEL16014)longer than that of the 149.4mm tically any deep-water fish.species,squids,or Specimen(GRSKU SI605).Pelvic fin crustttcians they encounter(Wheeler,1975).The longer than pectoral fin BSkL 16014,vice eoar:t:,hical distribution of this species is shown. versa in FRSEU S160.5.Caudal fin slightly in Fig.4.There seems ra he a tendency for forked.FiistFirst dodorsal sal and pelvic finfin spines finely large li h to be distributed hi higher latitudes. serrated,anal In spines slightly or not serrated This species w:_ts though.t to be exclusively Irons (Fig.2). the North Atlantic mitecan since its original Colour observed in stranded specimen.:body description(Johnson.I862t,until the recent uhiformcly silvery white with reddish purple publication of the following range extensions: caudal peduncle region(FRSKU SI605).Colour tropical South Pacific.South Indian and tropical in formalin:body uniiormly yellowish white Atlantic oceans(Parin and Bekiker.1972): with brownish.caudal peduncle region and pale south west of Mariana Islands(Parin,1976), purplish.abdomeinal region:.vci n at margin Gulf of Guinea I Dragovich and Potthofi.1972: of branc_hiosteual membrane black;eye brown-ish Parinblack;all et al.,1978):on:nest tins semi-iransparcnt coast of southernexcept

―412― Nakamura,Fujii and Arai:Gempylid Description

Fig.4.Capture location of Nesiarchus nasutus based on our records and literature.A,less than 100mm SL;•œ,100 to 300mm SL;•¡ 300 to 800mm SL;• more than 800mm SL;•¢,size unknown;N,

new record.

South Island,New Zealand(Nakamura et al., fin,instead of the single spine found in larger 1981);Japan and the Sulu Sea(present study). specimens."It seems most likely that the Twenty-seven larvae were caught at depths of detached anal spines in front of the soft anal 0m to about 200m off Florida and two juveniles fin decrease in number or become hard to observe were caught at depths of 376m to 394m off as the fish grows larger. South Calorina(Voss,1954).Thirteen juveniles Our two juvenile specimens have the same were caught at depths of 60m to 1000m south- meristic characters as adults but differ mor- west of Mariana Islands(Parin,1976).Juveniles phometrically.The serrated fin spines of our of this species are thought to be in the open specimens(Fig.2)are characteristic of the tropical waters of all oceans(Parin and Bekker, postlarva and juveniles of this species(Voss, 1972),so our two juveniles may have come 1954:figs.3 and 4). from tropical open waters to the coastal waters like Suruga Bay(FRSKU S1605)and to the Acknowledgements marginal sea like the Sulu Sea(BSKU 16014). We are grateful to Prof.Osamu Okamura, Department of Biology,Faculty of Sciences, Discussion Kochi University,for the loan of the specimens Two juveniles of N.nasutus,188 and 182mm from the R.V.Hakuho Maru Collections of SL,(which are larger than ours)were described the Ocean Research Institution,University of and illustrated from the Florida Straits(Voss, Tokyo.We thank Dr.Teruya Uyeno of Na- 1954)and from the Caribbean Sea(Tucker, tional Science Museum,Tokyo,Mr.Thomas 1956).Our specimens agree with the description Potthoff and Mr.Joseph L.Russo of National of these specimens,although some slight pro- Marine Fisheries Service,NOAA,for the critical portional differences are recognized between review of the manuscript.The technical as- their specimens and ours.We consider that sistance of Mrs.Reiko Nakamura is acknow- these differences are within the range of onto- ledged. genetic and individual variations.Our juvenile We also thank Dr.P.J.P.Whitehead,Mr.A. specimens have two dagger-shaped spines in Wheeler and Mr.O.Crimmen(BMNH)and Dr. front of the soft anal fin,while adults usually R.H.Gibbs,Jr.(USNM)for their help to have one spine in front of the soft anal fin. examine the specimens including types. Grey(1953)described no anal spines in the description of N.nasutus but in the discussion Literature cited she stated:"The two smallest examples possess Bean,T.H.1887.Description of a new species two dagger-shaped spines in front of the anal of Thyrsitops(T.violaceus)from the fishing banks

―413― 魚類学雑誌Japan.J.Ichthyol.29(4),1983

off the New England coast. Proc. U.S. Nat. Dominion of Canada and Newfoundland. Cana- Mus., 10: 513-514. dian Fisheries Museum, Ottawa, 138 pp., 14 pls.. Borodin, N. A. 1931. North-Atlantic deep-sea Hognestad, P. T. 1970. A new record of Nesiarchus fishes. Bull. Mus. Comp. Zool. Harv., 72 (3): nasutus Johnson in Norway. Fauna Oslo, 23: 55-89, 1 fig., 5 pls. 116 117, pl. 1. (In Norwegian with English Brandes, C. H., A. Kotthaus and G. Krefft. 1953. summary).

Rare fishes from the NW Area, Iceland. Annls Holt, E. W. and L. W. Byrne. 1909. On some Biol., Copenh., 9: 47 - 48. fishes from the Irish Atlantic slope. XXXV.

Capello, F. de B. 1867. Catalogo dos peixes de Preliminary note on some fishes from the Irish Portugal que existem no Museu de Lisboa. J. Atlantic slope. Ann. Mag. Nat. Hist., 8 (3):

Sci. Math. Phys. Nat. Lisboa, 1: 233 264, 307- 75•`77. 313. Hubbs, C. L. and K. F. Lagler. 1958. Fishes of de Buen, F. 1935. Fauna ictiologica. Catalogo the Great Lakes region. (Rev. ed.). Cranbrook de los peces ibericos : de la planicie continental, Inst. Sci. Bull., 26: 1•`213, figs. 1•`251, pls. 1•`44.

aguas dulces, pelagicos y de los abismos proximos. Johnson, J. Y. 1862. Description of some new

Segunda parte. Notas Resum. Inst. Esp. genera and species of fishes obtained at Madeira. Oceanogr., Ser. II, (89); 91 143, pls. XXI-LIII Proc. Zool. Soc. London, 1862: 167•`180, pls. (figs. 40-115). 22•`23. Dragovich, A. and T. Potthoff. 1972. Compara- JOnsson, G. 1969. Some new species of fish in tive study of food of skipjack and yellowfin tunas Icelandic waters. Nattitrufroeoingurinn, 38: 147•` off the coast of West Africa. U.S. Fish. Bull., 165, figs. 1•`18. (In Icelandic with English 70 (4): 1087 1110. summary). Forest, J. and R. Legendre. 1950. De quelques Jordan, D. S. and B. W. Evermann. 1896•`1898. Thyrsitinae (Scombridae) du genre Nesiarchus The fishes of North and Middle America, a de- observes a Concarneau. Bull. Inst. Oceanogr. scriptive catalogue of the species of fish-like verte-

Monaco, 966 : 1-12. brates found in the waters of North America, Fowler, H. W. 1936. The marine fishes of West north of the isthmus of Panama. Bull. U.S. Africa, based on the collection of the American Nat. Mus., (47), Part I, 1896: i lx, 1•`1240;

Museum Congo Expedition 1909•`15. Bull. Part III, 1898 : i•`xxiv, 2184•`3136.

Amer. Mus. Nat. Hist., 70 (2): 607•`1493, figs. Lozano y Ray, L. 1952. Peces fisoclistos, Sub- 276-567. serie Toracicos. Mem. R. Acad. Cinec. Exact. Golovan, G. A. 1978. Composition and distribu- Fis. Nat. Madr., Ser. : Cien Nat., Segunda Parte, tion of the ichthyofauna of the continental slope 14: 379•`705, figs. 21•`31, pls. 21•`51.

of North-Western Africa. Trans. P. P. Shirshov Nakamura, I., B. F. Webb and G. A. Tunnicliffe. Inst. Oceanogr., 111: 195-258, figs. 1-7. (In 1981. First record of a rare gempylid fish, Nesi-

Russian with English summary). archus nasutus, (Teleostei; Gempylidae) from New Goode, G. B. and T. H. Bean. 1895. Oceanic Zealand. Rec. Canterbury Mus., 9 (7): 337•`344, ichthyology, a treatise on the deep-sea and pelagic figs. 1•`2.

fishes of the world, based chiefly upon the collec- Nobre, A. 1935. Fauna marinha de Portugal. 1. tions made by steamers Blake, Albatross and Fish Vertebrados (Mamiferos, Reptis e Peixes). Com- Hawk in the northwestern Atlantic. Spec. Bull. panhia Editora do Minho Barcelos, POrto, lxxxiv U.S. Nat. Mus., 1 (Text): i•`xxxv, 1- 553, 2 +574 pp., 77 pls., 64 photos.

(Atlas): i xxiii, 1-26, pls. 1-123 (figs. 1 417). Noronha, A. C. di and A. A. Sarmento. 1948. Grey, M. 1953. Fishes of the family Gempylidae, Vertebrados da Madeira. Vol. 2. Peixes. Edicdo with records of Nesiarchus and Epinnula from the da Junta Geral do Distrito Autemomo, Funchal,

western Atlantic and descriptions of two new sub- 181 pp. species of Epinnula orientalis. Copeia, 1953 (3): Nunes, A. de A. 1953. Peixes da Madeira. Edicdo

135•`141. da Junta Geral do Distrito Auteinomo, Funchal,

Grey, M. 1955. Notes on a collection of Bermuda 274 pp., 25 pls. deep-sea fishes. Fieldiana, Zool., 37: 265•`302, Parin, N. V. 1976. Comparative analysis of the

figs. 45•`56. mesopelagic ichthyocoens on four polygones in Giinther, A. 1887. Report on the deep-sea fishes the western tropical Pacific Ocean. Trans. P.P.

collected by H. M. S. Challenger during the years Shirshov Inst. Oceanogr., 104 : 195•`205, figs. 1•`2. 1873•`76. Challenger Rep., Zool., 22 :i•`lxv, (In Russian with English summary).

1•`268, figs. 1•`7, pls. 1•`66. Parin, N. V., A. P. Andriashev, O. D. Borodulina Halkett, A. 1913. Checklist of the fishes of the and V. M. Tchuvasov. 1974. Midwater fishes

―414― Nakamura,Fujii and Arai:Gempylid Description

of the southwestern Atlantic Ocean. Trans. P. P. of the fishes of the family Gempylidae from the Shirshov Inst. Oceanogr., 98: 76•`140 , figs. 1•`15. Florida Current. I. Nesiarchus Johnson and Parin, N. V. and V. E. Bekker. 1972. Materials on Gempylus Cuv. and Val. Bull. Mar. Sci. Gulf taxonomy and distribution of some trichiurid Caribb., 4 (2): 120•`159, figs. 1•`15. fishes (Pisces, Trichiuroidae: Scombrolabracidae , Wheeler, A. 1969. The fishes of the British Isles Gempylidae, Trichiuridae). Trudy Inst. Okean. and North-West Europe. Macmillan, London , SSSR Akad. Nauk, 93: 110•`204, figs. 1•`28 . (In xvii + 613pp., 5+177+395H-num. unnumb. figs., Russian with English summary) . 16 pls. Parin, N. V. and V. E. Bekker. 1973. Gempylidae , Wheeler, A. 1975. Fishes of the World. An Percomorphi (Perciformes)-Trichiuroidei. pp.457 illustrated dictionary. Macmillan Publishing Co., 460. In: Hureau, J. C. and Th. Monod •` , ed. : Inc., New York, xiv+366 pp., num. unnumb. figs., Checklist of the fishes of the north eastern 48 pls. (501 col. figs.). Atlantic and of the Mediterranean. Vol.1

(Clofnum1). UNESCO, Paris, xxii+683pp. (IN: Fisheries Research Station, Kyoto University, Parin, N. V., V. E. Bekker, O. D. Borodulina and Maizuru 625, Japan; EF : 4-44-11 Koenjikita, Sugi- nami-ku, Tokyo 166, Japan; TA: 6-18-21 Nishi-oi, V. M. Tchuvasov. 1973. Deep-sea pelagic fishes Shinagawa-ku, Tokyo 140, Japan) of the southeastern Pacific Ocean. Trans. P . P. Shirshov Inst. Oceanogr., 94: 71•`172 , figs. 1•`45. Postscript Parin, N. V. and G. A. Golovan. 1976. Pelagic deep-sea fishes of the families characteristic of the After the manuscript had been submitted, several specimens of this species were recorded from Japan: open ocean collected over the continental slope of 1 specimen 568mm SL, collected by commercial West Africa. Trans. P. P. Shirshov Inst. Ocea- nogr., 104 : 250•`276, figs. 1•`3. (In Russian with bottom trawl in Suruga Bay (Ishii, T., person. comm.) ; number of specimens unknown, off Iwate, English summary). 39•‹58'•`40•‹27'N, 142•‹10'•`143•‹10'E, bottom trawl, Parin, N. V., Y. I. Sazonov and S. N. Mikhajlin . 1978. Deep-sea pelagic fishes in the collection of in 600•`1200m depth, No. 1 Kinei Maru, July-

R/V •sFiolento•t in the Gulf of Guinea and ad- August in 1979•`1981 (Iwate-ken Suisan Shikenjo, 1981: 83, 1 photo; mentioned as Acinaceidae sp.). jacent areas. Trans. P.P. Shirshov Inst., Oceanogr., The latter might be large fish judging from the photo- 111: 169 184, figs. 1•`3. (In Russian with English summary). graph. More extensive surveys may reveal that Nesiarchus nasutus has a local population around Quero, J. C. 1970. Observations francaises sur Japan. les poissons rares en 1968 et 1969 . Annls Biol., Copenh., 26: 280•`282. Iwate-ken Suisan Shikenjo, 1981. Showa 54 nendo Rollefsen, G. (editor) et al. 1960. Havet og vare shinkaigyojo kaihatsu shiken chosa hokokusho Fisker, 1: 1 ti 156, 1•`111, num. unnumb . figs., (dai 3 po). (Report of the survey of deep water 223 col. pls. fishing grounds development in 1969 (III)). Rep. Rost, H. 1954. Nesiarchus nasutus Johnson . Iwate Pref. Fish. Exper. Sta., 55 (Fish. 3) : 1•`109. (Gempylidae) a fish new to Norwegian fauna. (In Japanese). Astarte, Tromso, 7: 1•`8. Roule, L. 1927. Considerations sur deux especes 日本とスルー海に初記録のクロタチカマス科魚類,ハ abyssales entrees au Musee Oceanogrphique , et シナガクロタチ sur la valeur teratologique de l'une d'elles. Bull. 申村泉・藤井英一・荒井孝男 Inst. Oceanogr., Monaco, (497) : 1•`12, figs . 1•`2. クロタチカマス科魚類の1種,ハシナガクロタチ Steindachner, F. 1867. Ichthyologischer Bericht iiber eine nach Spanien and Portugal unter- (新称)Nesiarchus nasutus Johnsonは従来北大西洋だけから知られていたが,最近になって赤道太西洋, nommene Reise. IV. Ubersicht der Meeresfische 南大西洋,インド洋および太平洋からも記録されるよ an den Kasten Spaniens and Portugals . Sitzb. うになり,ほぼ全世界に分布することが明らかになっ K. Acad. Wien., 56: 1•`106, pls. 1•`9. て来た.今回の2記録は北西太平洋での,それぞれ最 Tucker, D. W. 1956. Studies on the trichiuroid 北(目本)と最西(スルー海)の分布を示すもので, fishes. 3. A preliminary revision of the family その測定値とともにここに報告する.本科魚類の測定 Trichiuridae. Bull. Brit. Mus. (Nat. Hist.), 4 (3) : 規準は確立していないので,その測定規準にも言及し 73•`130, figs. 1•`23, pl. 10. た(Fig。1)。 Vladykov, V. D. and R. A. Mackenzie. 1935. The marine fishes of Nova Scotia. Proc. Nova Scotian (中村:625舞鶴市長浜京都大学農学部附属水産実 Inst. Sci., 19 (1) : 1•`113. 験所;藤井:166東京都杉並区高円寺北4-44--11;荒 Voss, N. A. 1954. The postlarval development 井:140東京都品川区西大井6-18-21)

―4,5―