180 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



The small specimens from stations 45 and 53 are, according to Gisle"n, evidently 

 young individuals of this form although of an ornate type. 



Localities. Dr. Sixten Bock's Expedition to Japan station 46; Bonin Islands, 

 east of the Channel; 128 meters; August 1, 1914 [Gisl^n, 1922]. 



Dr. Sixten Bock's Expedition to Japan station 47; Bonin Islands; east of the 

 Channel; 146 meters; August 1, 1914 [Gisl<n, 1922). 



Dr. Sixten Bock's Expedition to Japan station 48; Bonin Islands; east of Chichi- 

 jima; 183 meters; August 1, 1914 [Gisl6n, 1922]. 



Dr. Sixten Bock's Expedition to Japan station 53 ; Bonin Islands, 2 miles east of 

 Higashijima; 164 meters; sand and broken shells; August 8, 1914 [Gislen, 1922]. 



Dr. Sixten Bock's Expedition to Japan station 45 ; Bonin Islands, east of Chichi- 

 jima; 146 meters; July 31, 1914 [Gisl<n, 1922]. 



Geographical range. Known only from the Bonin Islands. 



Bathymetrical range. Apparently from 128 to 183 meters; but the depths as 

 given represent the length of dredging wire out, not the actual depths. 



Remarks. This species is known only from the 11 specimens collected by Dr. 

 Sixten Bock in 1914 and described by Dr. Torsten Gisle'n in 1922. 



EUDIOCRINUS sp. 



Eudiocrinus sp. A. H. CLAEK, Temminckia, vol. 1, 1936, p. 302. 



Locality. Binonko, Toekay Besi Island; about 10 meters; WHlebrord Snellius, 

 March 7-10, 1930. 



Remarks. A small undeterminable individual was dredged at this locality. 



Family HIMEROMETRIDAE A. H. Clark 



Savignyii group P. H. CARPENTER, Journ. Linn. Soc. (Zool.), vol. 16, No. 95, 1882, p. 508. 



Basicurva group (part) P. H. CARPENTER, Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 102 

 (Antedon denticulata only). HAHTLAUB, Bull. Mus. Comp. Zool., vol. 27, 1895, p. 130. A. H. 

 CLARK, Proc. U. S. Nat. Mus., vol. 33, 1907, pp. 127, 128; Smithsonian Misc. Coll., vol. 50, 

 1907, pp. 343-345, 348, 359, 361; Proc. U. S. Nat. Mus., vol. 36, 1909, p. 365. 



Milberti group (part) P. H. CARPENTER, Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 192 

 (Antedon pinniformis, A. milberti, A. laevissima [part], A. tessellata, A. anceps, and A. variipinna) . 

 P. H. CARPENTER, Journ. Linn. Soc. (Zool.), vol. 21, 1889, p. 304 (species collected at Mergui). 

 HARTLAUB, Nova Acta Acad. German., vol. 58, No. 1, 1891, pp. 13, 80; Bull. Mus. Comp. Zoc*., 

 vol. 27, p. 137 (structural position). A. H. CLARK, Smithsonian Misc. Coll., vol. 50, 1907, 

 pp. 343, 344 (characters differentiating this group not diagnostic), p. 345 (heterogeneous char- 

 acter of the group), p. 349 (Tropiometra, gen. nov., includes part of the species), p. 357 (Cyllo- 

 metra, gen. nov., includes part of the species). HARTLAUB, Mem. Mus. Comp. Zool., vol. 27, 

 1912, p. 370. 



Palmata group (part) P. H. CARPENTER, Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 223 

 (Antedon clemens). (For further references to this group see page 391.) 



Savignyi group P. H. CARPENTER, Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 252 (all the 

 included species except Antedon angustiradia) . HAHTLAUB, Nova Acta Acad. German., vol. 

 58, No. 1, 1891, p. 13 (diagnosis; range; 16 species), p. 15 (diagnosis; discussion), p. 16 (key to 

 the species included); Bull. Mus. Comp. Zool., vol. 27, 1895, p. 137 (structural position). 



Savignii group A. H. CLARK, Smithsonian Misc. Coll., vol. 50, 1907, p. 343 (characters differentiating 

 this group not diagnostic), p. 355 (Himerometra, gen. nov., includes part of species), p. 364 (one 

 species [angustiradia] referred to Adelometra, gen. nov.). 



