. Bulletin - United States National Museum. Science. 84 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. fathoms, volcanic sand, shells, rocks, 6 specimens; station 3716, off Ose Zaki, Japan, 65 to 125 fathoms, volcanic sand, shells, rocks, 5 specimens; station 4807, Sea of Japan, lat. 41° 36' 12" N.; long. 140° 36' W., 44 to 47 fathoms, shells, coarse gravel, 1 specimen; station 4874, Korea Strait, lat. 34° 38' N.; long. 130° 3' E., 66 fathoms, green sand, broken shells, 1 specimen; station 4933, off Kagoshima Gulf, lat. 30° 59' N.; long. 130° 29' 50" E., 152 fathoms*^ rocky, bottom temp
. Bulletin - United States National Museum. Science. 84 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. fathoms, volcanic sand, shells, rocks, 6 specimens; station 3716, off Ose Zaki, Japan, 65 to 125 fathoms, volcanic sand, shells, rocks, 5 specimens; station 4807, Sea of Japan, lat. 41° 36' 12" N.; long. 140° 36' W., 44 to 47 fathoms, shells, coarse gravel, 1 specimen; station 4874, Korea Strait, lat. 34° 38' N.; long. 130° 3' E., 66 fathoms, green sand, broken shells, 1 specimen; station 4933, off Kagoshima Gulf, lat. 30° 59' N.; long. 130° 29' 50" E., 152 fathoms*^ rocky, bottom temperature 56°, 1 specimen; station 4934, off Kagoshima Gulf, lat. 30° 58' 30" N.; long. 130° 32' E., 103 to 152 fathoms, rocky, bottom temperature 56°, 4 specimens. Bathymetrical range, 44 to 152 fathoms. Twenty-two specimens. Tyjye.—Cat. No. 25728, , from station 4807. This species resembles sterea so closely that viewed simply from above it can not be distinguished with certainty, although the upper arm plates are somewhat different. But a glance at the arm spines is sufficient to enable one to separate the two species without fail. The secondary arm spines of stiphra are so fidly differentiated into a marginal fringe and are so sharply distinct from the true spines that the general appearance is quite unlike that of sterea. OPHIURA PENICHRA, new Disk 24 mm. in diameter; arms about 70 mm. long. Disk high, about 7 mm. thick, covered by a close, smooth coat, of rather less. Fig. 26.—Ophiura pknichra. X- a, FROM above; 6, from below; c, side view of three arm JOINTS NEAR DISK. than one hundred scales, among which the primary plates are not always distinguishable, but the radial shields are conspicuous. Radial shields rather longer than wide, united for about two-thirds of their length, inner ends diverging. Arms high, compressed, and faintly keeled at base. Upper arm plates tetragonal, much wider than long, gradually becoming hexagonal and ulti
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