158 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. 



arms, especially the side arm plates, have a decidedly reddish tint, 

 the red being of a brownish-orange shade. 



Localities. Albatross station 3696, off Honshu Island, Japan, 501 

 to 749 fathoms, green mud, volcanic ashes, sand, 23 specimens; 

 station 3708, off Ose Zaki, Honshu Island, Japan, 60 to 70 fathoms, 

 green mud, volcanic sand, ashes, 1 specimen; station 3709, off 

 Shimidzu Harbor, Honshu Island, Japan, 173 to 260 fathoms, stiff 

 blue volcanic mud, rocks, 10 specimens; station 3789, off Washington, 

 lat. 48 21' 45" X.; long. 124 52' 30" W., 115 fathoms, coarse gray 

 sand, gravel, 1 specimen; station 4862, off Korea, lat. 36 20' N. ; 

 long. 129 50' E., 184 fathoms, green mud, bottom temperature 32.9, 

 3 specimens; station 4997, Gulf of Tartary, lat. 47 38' 40" N.; long. 

 141 24' 30" E., 318 fathoms, green mud, bottom temperature 32.8, 

 11 specimens; station 5056, Suruga Gulf, lat. 34 57' 35" N.; long. 

 138 43' 35" E., 258 fathoms, green mud, broken shells, foraminifera, 

 bottom temperature 46, 1 specimen; station 5057, Suruga Gulf, 

 lat. 34 58' 40" N.; long. 138 34' E., 270 fathoms, gray mud, bottom 

 temperature 44.8, 6 specimens; station 5085, Sagami Bay, lat. 35 

 6' 45" N.; long. 139 19' 45" E., 622 fathoms, green mud, fine black 

 sand, bottom temperature 37.8, 58 specimens. Bathymetrical 

 range, 60 to 749 fathoms. Temperature range, 46 to 32.8. One 

 * hundred and fourteen specimens. 



Type. Cat. No. 25584, U.S.N.M., from station 5057. 



This species is not likely to be confused with any other member of 

 the genus save the following, the arrangement of the disk scales 

 and mouth parts, the form of the radial and oral shields, and the 

 number of arm spines and tentacle scales being very distinctive. 

 The occurrence in large specimens of an extra oral papilla distally 

 may naturally raise the question as to whether the species belongs in 

 AmpJiiodia or Amphioplus. In view of all the characters, however, I 

 do not think there can be any serious doubt that its relationships are 

 actually with AmpJiiodia. The specimen from station 3789 is not 

 peculiar, but the occurrence of this species at that point certainly 

 calls for some comment. 



AMPHIODIA EURYASPIS, new species, a 



Disk 13 mm. in diameter; arms about 150 mm. long. Disk more 

 or less decagonal, with each side of the decagon convex; the radial 

 indentations of disk more marked than the interradial; disk covered 

 with numerous irregular scales, of approximately equal size. Radial 

 shields small, short, seldom twice as long as wide, in contact distally. 

 Arm plates, interbrachial spaces below, oral shields, adoral plates, 

 oral papillae, tentacle scales and arm spines somewhat variable and 



" K'jpbc, signifying broad, and daxtf, signifying shield, in reference to the short, 

 wide radial shields. 



