178 PROCEEDINGS OF THE NATIONAL MUSEUM

15.COELORHYNCHUS JAPONICUS (Temminck and Schlegel).

Macrurns japonicus Temmincic and Schlegel, Fauna Japonica, 1846, p.

256, pi. 112, fig. 2.

—

^{GiJNTHEE, Challenger Reports, vol. 22, Deep-Sea}

Fishes, 1887, p. 127, pi. 29, fig. O.

—

Steindachner and Doderlein, Fische Japans,vol.4,1887,p.283.

Coelorhynchus japonicusJordan andGilbert, Bull.U.S.FishComm.,1902 (1904),p.617.—Franz, Abh. math.-phys. kl.

K

Bayer. Al^ad.der Wis- sensch.,vol.4,Suppl.Bd.1,1910,p. 26.

—

Jordan and Thompson,Mem.

CarnegieMus.,vol. 6,pt. 4,1914,p. 306.

Albatross station.

NO.2149.

JAPANESE MACROUROID FISHES— GILBERT AND HUBBS.

179 TaUeofmeasurementsinhundredthsof lengthtoanus.

AIbatrossstation Total length,mm

Lengthtoamis,mm

Length, head Length,orbit Width,interorbital Width,suborbital Orbittopreopercle Length, snout Length, maxillary Length, barbel Depth,body Width, body Anustoanal Anustoventral Ventraltoisthmus Height,seconddorsal spine.

Length,firstdorsalbase Interdorsalspace Length,pectoral Length, outer ventralray...

Scales,abovelateral lino Softrays,firstdorsal Ventral rays Pectoralrays

18.3 9.5 25 31 20 G.5

22 20 2t5 9.5 17

4967 307 120 75 20 14 9 25 33.5 19.5 6.5 34 24 5

166 58 76 22 15 8 24 34 18 6 34 24 4 20 20.6 31 12 17 26 30

16.COELORHYNCHUSTOKIENSIS(SteindachnerandDoderlein).

Macrurus tokicnsis Steindachner and Doderlein, Fisclie Japaus, vol. 4, 1887, p. 283.

Albatross station.

180 PROCEEDINGS OF THE NATIONAL MUSEUM.

vol. 51.

widefree fold;gillslitbeforefirstarch1.5in orbit,slitbehindfourth arch2.9.

Sixscalesbetweenorigin ofsecond dorsalandlateralline,exclud- ing thelateral line scale; mostof thescales ofthebody with5,some with 3, strong divergentridges,

armed

with about5 strongprocum- bent imbricatespines, theposterior onestrongest,and extendingbe-

yond

the scale margin.

Lower

surface of head completely naked, with the exception of a verywell defined, elliptical patch of scales belowthe angle of thepreopercle.

A

fewpricklyscalesonthe lower acuteendof the largepyriformnasalfossa,whichis aslongasthe eye^;apairofnakedgrooves neartipofsnout,converginganteriorly

;

scales of the median rostral ridge anteriorly with two divergent ridges, posteriorlywitha singlekeel,and withafewlateralspinules

;

two

well-definedseriesofscalesoneachside oftherostralridgebe- tweenit anda lateralgrooveparallel toit; thescalesintheseseries are

armed

each with asingle spinous ridge; thetwo series

on

each sidediverge opposite theendof therostral ridge,the inner seriesof eachsidemeetingabove themiddleoftheorbit,and formingamedian occipitalseries,the outer seriesbecomingcontinuouswiththe occip- ital ridge; two lateral occipital series, between the occipital ridge and the medianseries, not extendingon thesnout; scalessmall and pricklyoutward fromthelateral rostralgrooves;scalesinthemodi-

fied series

midway

between occipitaland postorbital ridges, and on the opercles,with3spinous divergentridges,thoseonthe suborbital ridge with several spinous ridges; other scales of the head with a singletrenchant spinouscrest,strongeston theoccipital andpostor- bital ridges.

Color light

brown

(dark on belly), with about six distinct dark

brown

bars extendingacrossthebody,andaboutaswideastheinter- spaces between them; one is locatedbehind theocciput, the second below thefirst dorsal, onebelow the interdorsal space, threebroad oneson the anterior half oftail, and several indistinct onesbehind these.

Head

grayish, except on the dusky opercle. Vertical fins dusky, the anal withablackishmargin;ventral dark, butwitha light filament; two uppermost pectoral rays, and the distal ends of the other rays dark. Buccal,branchial,andperitoneal cavities linedwith blackish,the branchialcavitywith a whitishmargin onthe opercular membranes,the peritoneallining spotted,underlaidwithsilvery.

A

larger specimen, in poor condition, about 535

mm.

long, from station 4911, differs

from

the smallerspecimeninthe followingchar- acters: Scales on anterolateral angle of snout scarcely enlarged;

length of snout2.27,width1.55 initslength; depthovertipofpre- maxillaries 1.65; orbit smaller, 2.1 in snout; maxillary 3.65; scaly ridgeslessprominent;scaleswith5 to 7ridges;nasalfossamore com-

pletel}^scaled anteriorly; afewlateral spinules besidesthemediankeel onthe scaleson top ofhead; scaleson median rostral ridge with 5

NO.2149.

JAPANESE MACROUROID FISHES— GILBERT AND

HUBBS. 181 spinous ridges; those on theopercles, and onthe seriesbetweenthe occipital and postorbital ridges with 3 to 7 spinous ridges. First dorsalspine concealed (sharpinthe smaller specimen). Fiftypyloric caeca,shorter thanthe orbit.

C. tohiensisis probablymostclosely related to C. mdcrorhynchus Smith andRadcliffe/ aPhilippinespecies,and to C. quadrlcrlstatus (Alcock),- an Indianspecies.

From

C.macrorhynchus^ itdiifersin the absence of scales on the under side of the head, excepting the definitesmall posterior patch; the darkbars of thebody; theblunt snout;and the shorterinterdorsal space,whichisshorter,insteadof longer,than the baseof thefirstdorsal.

From

G. quadrlcristatus^it differsinthe shorterblunter snout; the larger eye; thenakedunder- side ofhead;inthemore numerouspectoral rays, 18or19,insteadof 16;andintheventralextensionofthedarkbarstothe analbase.

TaUeofmeasurements inlinndredths of lengthtoanus.

AIbatrossstation

182

PROCEEDINGS OF THE NATIONAL

MVSEUil.

Under

side of head completely scaled; scales between the strong ridges of theheadsmall,mostlywith a singlemediankeel,excepting aseriesofscales

midway

betweentheoccipitalandpostorbital ridges.

Subopercle sharplyproduced

downward

and backwardatitslower angle. Branchiostegals6.

Only

9 pyloriccaeca, two-thirdsaslong astheeye.

Tabic ofmeasurementsinhundredthsoftengtli toanus.

NO.2149.

JAPANESE MACROVROID FISHES— GILBERT AND HUBBS.

183

18.ABYSSICOLA MACROCHIR (Gunthci).

Macrurusmacrochir Guntheb,Aim. Mag. Nat. Hist. (4),vol.20, 1877,p.

438;CliaUengcrReports,vol. 22,Deep-SeaFishes, 1887,p.148, fig.29, fig. B. (offEnoshima, 345 fathoms).

Abyssicola macrochirGoode andBean, Oceanic Ichthyology, 1895, p. 417, pi.G,fig.348.—Jordan andSnydee,Proc.U.S.Nat. Mus.,vol. 23,1900, p. 376 (offTokyo;Albatross,1896).—Jordan and Gilbert, Bull. U. S.

Fish Comm., 1902 (1904), p. 607 (Sagami Bay, Albatross, 1900).—

Franz, Abh. math. phys. kl. k. Bayer.Akad. der Wisseusch., vol. 4, Suppl.Bd.1, 1910,p. 26.

Albatross station.