. Bulletin - United States National Museum. Science. 112 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. apex of jaw. Genital slits remarkably long and conspicuous, reach- ing from middle of oral shield to fourth joint of arm. First under arm plate very small, hexagonal, about as long as mde; next two or three plates somewhat pentagonal, wider than long; suc- ceeding plates small, pentagonal or triangular, becoming roinute, diamond-shaped. Side arm plates moderate, little swollen, meeting broadly below, and above except at base of arm. Each plate car- ries three small, blunt spines, close together
. Bulletin - United States National Museum. Science. 112 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. apex of jaw. Genital slits remarkably long and conspicuous, reach- ing from middle of oral shield to fourth joint of arm. First under arm plate very small, hexagonal, about as long as mde; next two or three plates somewhat pentagonal, wider than long; suc- ceeding plates small, pentagonal or triangular, becoming roinute, diamond-shaped. Side arm plates moderate, little swollen, meeting broadly below, and above except at base of arm. Each plate car- ries three small, blunt spines, close together, low doA\Ti on the plate, but on the basal joints there may be only two, one, or none. Tentacle pores on second, third, and fourth joints of arm small, protected usually by one, rarely by two, scales. Color (dried from alcohol), pale yellowish, or light brown. Localities.—Albatross station 3104, off California, lat. 37° 23' N.; long. 123° 8' W., 391 fathoms, clay, bottom °, 1. Fig. 41.—Ophiomusium jolliensis. a, from above; 6, from below; c, side view of three ARM joints near DISK. specimen; station 3126, off California, lat. 36° 49' 20" N.; long. 122° 12' 30" W., 456 fathoms, green mud, bottom temperature? (), 145 specimens; station 3347, off Washington, lat. 45° 9' 35" N.; long. 124° 45' W., 345 fathoms, mud, bottom temperature °, 21 specimens; station 3738, off Port Heda, Japan, 167 fathoms, stiff blue mud, 3 specimens; station 4965, off eastern Japan, lat. 33° 35' 20" N.; long. 135° 10' 50" E., 191 fathoms, dark green- gray sand, shells, bottom temperature °, 11 specimens; station 5079, off eastern Japan, lat. 34° 15' N.; long. 138° E., 475 to 505 fathoms, pebbles, bottom temperature °, 1 specimen; station 5091, Uraga Strait, Japan, lat. 35° 4' 10" N.; long. 139° 38' 12" E., 197 fathoms, green mud, coarse black sand, pebbles, bottom tem- perature °, 11 specimens. Locality?, 1
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