192 BULLETIN 75, UNITED STATES NATIONAL MUSEUM. 



about equal to three joints. Tentacle scales, three at first arm pore, 

 two at second and one thereafter; long, rounded at tip or pointed, 

 very conspicuous. Color (dried from alcohol), nearly white. 



Localities. -^Albatross station 4918, Eastern Sea, lat. 30° 22' N.; 

 long. 129° 8' 30" E., 361 fathoms, gray sand, globigerina, broken 

 shells, bottom temperature 42.7°, 1 specimen; station 4967, off eastern 

 Japan, lat. 33° 25' 10" N.; long. 135° 37' 20" E., 244 to 253 fathoms, 

 brown mud, sand, foraminifera, bottom temperature 45.9°, 1 specimen. 



Xype.—Csit. No. 25622, U.S.N.M., from station 4918. 



Fig. 89.— Ophiocamax lithosoka. x 3. a, from above; 6, from helow; c, sii>e view of two arm 



JOINTS near disk. 



These specimens remind one at once of Ophiomitra hytJiiasjns, and I 

 can not avoid the feeling that more abundant material will show that 

 the two species are congeneric, if not identical. The differences in 

 the radial shields, disk scales, disk spines, and oral shields are marked, 

 as well as those in the oral papillae, but in each of these points the three 

 specimens vary among themselves, and the specimen of lithosora 



