NORTH PACIFIC OPHIURANS IN NATIONAL MUSEUM CLARK. 193 



from station 4967, is orally very much like bi/thiaspis, though on the 

 upper side it is totally unlike that species. Indeed, I am not sure 

 that this specimen from 4967 is really conspecific mth the one from 

 4918, but it seems best to so regard it for the present. 



OPHIOCAMAX POLYPLOCA, new species." 



Disk 17 mm. in diameter; arms about 125 mm. long. Disk rather 

 decagonal, with very slight interradial notches, covered largely by 



C 



Fig. 90.— Ophiocamax polyploca. X 3. a, from above; 6, from below; c, side view of two arm 



JOINTS NEAR DISK. 



the radial shields except at center and on narrow interradial areas, 

 where there are numerous overlapping scales; these scales bear 



<i UoXimXoKoc, signifying much tangled, in reference to the long, unusually spiny 

 arms. 



34916°— Bull. 75—11 13 



