112 U.S. NATIONAL MUSEUM BULLETIN 293 



Holotype: 



USNM El 199 (alcohol), Albatross Sta. ?, Monterey Bay, California, 

 1904. 



Ophiocten depressum Lyman 



Bulletin of the Museuni of Comparative Zoology at Harvard, vol. 1, 

 p. 320, 1869. 

 = Ophioleuce depressa (see Koehler, 1904) 



Holotype: 



MCZ 763 (1 dry), off Double Headed Shot Key, Florida, 315 fms., 

 Pourtales, collector, Mar. 10, 1869. 



Paratype: 



MCZ 4122 (1 dry), same as above. 



Ophiocten hastatum Lyman 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 5, 

 p. 103, pi. 5, fig. 133, 134, 1878. 



Syntype: 



MCZ 765 (2 dry). Challenger Sta. 416, near Marion Id., 1375 fms. 



Ophiocten ooplax H. L. Clark 



U.S. National Museum Bulletin 75, p. 99, fig. 37, 1911. 

 = Ophiura ooplax (see Matsumoto, 1915) 



Holotype: 



USNM 25719 {dry), Albatross Sta. 4972, off Shino Misaki Lt., Japan, 

 440 fms., 1906. 



Paratypes: 



USNM 25745 (5 dry), Albatross Sta. 4915, off Tsurikake Saki Lt., 

 Japan, 427 fms., 1906. 



USNM 25763 (1 dry). Albatross Sta. 5087, off Joka Shima Lt., Sagami 

 Bay, Hondo, Japan, 614 fms., 1906. 



USNM 25773 (1 dry), Albatross Sta. 4912, off Tsurikake Saki Lt., 

 Japan, 391 fms., 1906. 



USNM 25774 (1 dry). Albatross Sta. 3704, off Honshu Id., Japan, 94- 

 150 fms., 1900. 



USNM 25778 (1 dry). Albatross Sta. 4913, off Tsurikake Saki Lt., 

 Japan, 391 fms., 1906. 



USNM 25791 (1 dry). Albatross Sta. 4909, off Tsurikake Saki Lt., 

 Japan, 434 fms., 1906. 



USNM 25792 (1 dry). Albatross Sta. 4919, off Kusakaki Jima, Japan, 

 440 fms., 1906. 



