84 U.S. NATIONAL MUSEUM BULLETIN 264 



Strongylocentrotus polyacanthus A. Agassiz and H. L. Clark 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 51, 

 no. 5, p. 123, 1907, 



Holotype: 



USNM 32768 (dry), Alhatross,Milcie Bay, Simushir Island, Japan, June 

 23, 1906. 



Strongylocentrotus pulchellus A. Agassiz and H, L. Clark 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 51, 

 no. 5, p. 124, 1907. 



Lectotype (designated by Mortensen, Monograph, vol. 3, no. 3, p. 229): 

 USNM 32769 (dry). Albatross Sta. 5003, Gulf of Tartary, southwest of 

 Saghalin Island, Okhotsk Sea, 46029' 30"N., 145046' E., 35 fms., Sept. 

 23, 1906. 



Syntype: 



MCZ 3953 (1 dry), Albatross Sta.4794, off eastern coast of Kamtchatka, 

 58-69 fms. 



Stylocidaris annulosa Mortensen 



U.S. National Museum Bulletin 100, vol. 6, pt. 4, p. 296, pi. 63, fig. 1; 

 pi. 64, figs. 1-3; pi. 65, fig. 8; pi. 75, fig., 3; pi. 80, figs. 7-11, 1927. 



Holotype: 



USNM E1328 (dry), Albatross Sta. 5278, China Sea, near southern 

 Luzon, 14°00'10"N., 120Ol7'15"E., 186 meters, July 17, 1908. 



Paratypes: 



USNM E1268 (1 dry). Albatross Sta. 5369, Marinduque Island, Phil- 

 ippines, 13°48'N., 12l043'E., 194 meters, Feb. 24, 1909. 



USNM E1327 (6 dry). Albatross Sta. 5369, see above. 



USNM El 329 (dry fragments). Albatross Sta. 5369, see above. 



Stylocidaris effluens Mortensen 



U.S. National Museum Bulletin 100, vol. 6, pt. 4, p. 285, pi. 62, figs. 

 1-2, 1927. 



Syntype s: 



USNM E1316 (4 dry). Albatross Sta. 5404, Leyte, Philippines, 10°50'N., 

 124026'18"E., 347 meters, Mar. 17, 1909. 



USNM E1264 (3 dry). Albatross Sta. 5403, between Leyte and Cebu, 

 Philippines, IIOIO'N., 124017'15"E., 333 meters. Mar. 16, 1909. 



USNM E1272 (21 dry), Albatross Sta. 5403, see above. 



USNM E1273 (10 dry), Albatross Sta. 5536, between Negros and 

 Siquijor, Philippines, 9015'45"N., 123°22'E., 510 meters, Aug. 19, 

 1909. 



USNM E1282 (2 alcohol). Albatross Sta. 5517, north Mindanao, Phil- 

 ippines, 8O45'30"N., 123033'45"E., 309 meters, Aug. 9, 1909. 



