70 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. 



39. 3, 11 specimens; station 3338, off Alaskan peninsula, lat. 54 19' 

 N.; long. 159 40' W., 625 fathoms, green mud, sand, bottom tem- 

 perature 37.3, 4 specimens; station 3343, off Washington, lat. 47 

 40' 40" N.; long. 125 20' W., 516 fathoms, green mud, bottom tem- 

 perature 38.2, 3 specimens; station 4781, Bering Sea, lat. 52 14' 30" 

 N.; long. 174 13' E., 482 fathoms, fine gray sand, pebbles, bottom 

 temperature 38.6, 3 specimens; station 5079, off Omai Saki Light, 

 Japan, lat. 34 15' N.; long. 138 E., 475 to 505 fathoms, pebbles, bot- 

 tom temperature 39.1, 3 specimens; station 5080, off Omai Saki 

 Light, Japan, lat. 34 10' 30" N.; long. 138 40' E., 505 fathoms, fine 

 gray sand, globigerina, bottom temperature, 38.7, 1 specimen. Bathy- 

 metrical range, 230 to 636 fathoms. Temperature range, 39.8 to 

 37.3. Twenty-nine specimens. 



Type. Cat. No. 25710, U.S.N.M., from station 3337. 



This species is very near the preceding but seems to be constantly 

 distinct. The concealment of the disk scales is more a difference of 

 degree than of kind, but the conspicuous arm comb and the large 

 lowest arm spine in cryptolepis provide very convenient and reliable 

 means of distinguishing this species from calyptolepis. The speci- 

 mens before me range, in diameter of disk, from 4 to 20 mm. 



OPHIURA NODOSA. 



Ophiura nodosa LUTKEN, Vid. Medd. for 1854, 1855, p. 100. 

 Localities. Albatross station 3250, Bering Sea, lat. 58 11' 30" N.; 



long. 163 2' 45" W., 17 fathoms, gray sand, bottom temperature 

 46.2, 3 specimens; station 3251, Bering Sea, lat. 57 35' 50" N. ; long. 

 164 5' W., 25J fathoms, fine gray sand, bottom temperature 37.5, 

 12 specimens; station 3252, Bering Sea, lat. 57 22' 20" N.; long. 

 164 24' 40" W., 29J fathoms, black mud, bottom temperature 44.8, 

 1 specimen; station 3269, Bering Sea, lat. 55 19' N. ; long. 163 4' 30" 

 W., 16 fathoms, fine gray sand, black specks, bottom temperature 

 42.3, 1 specimen; station 3297, Bering Sea, lat. 57 38' N.; long. 

 159 7' 30" W., 26 fathoms, gray sand',' bottom temperature 41.5, 1 

 specimen; station 3298, Bering Sea, lat. 57 38' 30" N.; long. 158 

 22' 30" W., 20 fathoms, fine gray sand, bottom temperature 43.8, 

 18 specimens; station 3304, Bering Sea, lat. 58 2' 30" N.; long. 161 

 13' 45" W., 28 fathoms, fine gray sand, 1 specimen; station 3305, 

 Bering Sea, lat. 57 51' 30" N.; long. 161 40' W., 23 fathoms, fine 

 gray sand, bottom temperature 41.8, 23 specimens; station 3504, 

 Bering Sea, lat. 56 57' N.; long. 169 27' W., 34 fathoms, fine gray 

 sand, black specks, bottom temperature 37.8, 1 specimen; station 

 3507, Bering Sea, lat. 57 43' N.; long. 164 42' W., 31 fathoms, fine 

 gray sand, bottom temperature 37.5, 35 specimens; station 3675, loc. ?, 

 no record available, 6 specimens; station 5005, off Saghalin, lat. 46 

 4' 40" N. ; long. 142 27' 30" E., 42 fathoms, green mud, fine gray sand, 



