286 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. 



32 36' 30" N.; long. 132 23' 20" E., 405 to 578 fathoms, green- 

 brown mud, fine gray sand, foraminifera, bottom temperature 40.1 to 

 38.7, 1 specimen; station 4960, off southern Japan, lat. 32 34' N.; 

 long. 132 21' 45" E., 578 fathoms, green-brown mud, fine gray sand, 

 foraminifera, bottom temperature 38.7, 2 specimens; station 4969, 

 off eastern Japan, lat. 33 23' 40" N.; long. 135 33' E., 587 fathoms, 

 brown mud, sand, stones, bottom temperature 38.9, 13 specimens; 

 station 4970, off eastern Japan, lat. 33 23' 30" N. ; long. 135 36' 30" 

 E., 500 to 649 fathoms, brown mud, black sand, shells, bottom tem- 

 perature 39.1, 1 specimen; station 4971, off eastern Japan, lat. 

 33 23' 30" N.; long. 135 34' E., 649 fathoms, brown-green mud, 

 foraminifera, bottom temperature 38.1, 10 specimens; station 4972, 

 off eastern Japan, lat. 33 25' 45" 1J. ; long. 135 33' E., 440 fathoms, 

 brown-green mud, foraminifera, bottom temperature 39.8, 3 speci- 

 mens; station 4976, off eastern Japan, lat. 33 22' 50" N.; long. 135 

 38' 30" E., 545 fathoms, brown mud, small stones, bottom tempera- 

 ture 38.7, 2 specimens; station 4977, off eastern Japan, lat. 33 23' 

 N. ; long. 135 37' 40" E., 544 fathoms, brown mud, fine sand, bottom 

 temperature 38.9, 4 specimens; station 4980, off eastern Japan, lat. 

 34 9' N.; long. 137 55' E., 507 fathoms, brown mud, fine sand, 

 foraminifera, bottom temperature 39, 4 specimens; station 5015, 

 Okhotsk Sea, lat. 46 44' N. ; long. 144 2' E., 510 fathoms, green mud, 

 bottom temperature 35.9, 2 specimens; station 5018, Okhotsk Sea, 

 lat. 46 41 ' 30" N.; long. 143 57' 40" E., 100 fathoms, brown mud, 

 black sand, pebbles, bottom temperature 30.4, 1 specimen; station 

 5029, Okhotsk Sea, lat. 48 22' 30" N.; long. 145 43' 30" E., 440 

 fathoms, black sand, gravel, bottom temperature 35.3, 10 specimens; 

 station 5048, off Kinka San Light, Japan, lat. 38 9' 24" N.; long. 

 141 52' 30" E., 129 fathoms, dark gray sand, broken shells, bottom 

 temperature 40.7, 1 specimen; station 5079, off Omai Saki, Japan, 

 lat. 34 15' N.: long. 138 E., 475 to 505 fathoms, pebbles, bottom 

 temperature 39.1, 1 specimen; station 5080, off Omai Saki, Japan, 

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

 globigerina, bottom temperature 38.7, 5 specimens; station 5082, off 

 Omai Saki, Japan, lat. 34 5' N. ; long. 137 59' E., 662 fathoms, green 

 mud, fine sand, globigerina, bottom temperature 37.7, 2 specimens; 

 station 5083, off Omai Saki, Japan, lat. 34 4' 20" N.; long. 137 57' 

 30" E., 624 fathoms, fine gray sand, globigerina, bottom temperature 

 38.1, 1 specimen; station 5084, off Omai Saki, Japan, lat. 34 N.; 

 long. 137 49' 40" E., 918 fathoms, green mud, fine sand, globigerina, 

 bottom temperature 36.8, 2 specimens. Bathymetrical range, 83 

 to 918 fathoms. Temperature range, 42.8 to 30.4. Four hundred 

 and ninety-eight specimens. 



This fine series of specimens, ranging in size from young ones only 

 5 mm. across the disk up to huge adults 45 mm. in disk diameter, has 



