576 BULLETIN 82, UNITED STATES NATIONAL MUSEUM VOL0ME 1 



species). — Bather, Ann. Mag. Nat. Hist., ser. 9, vol. 1, No. 4, 1918, p. 298 (anal).— Osburn, 

 Bull. Amer. Mus. Nat. Hist., vol. 41, 1919, p. 606 (host of Loxosometla). — Mortexsen-, Vid. 

 Medd. Nat. Foren. K0bcnhavn, vol. 72, 1920, p. 73 (host of Loxosomella anledonis; not the same 

 as the Loxosoma of Anlcdon petasus); Studies in the development of crinoids, 1920, p. 22 

 (pentaerinoids compared with tho.se of Tropiometra), p. 73 (anal and right posterior radial't. — 

 Grieg, Sci. Res. Michael Sars Expcd., 1910, vol. 3, pt. 2, 1921 (reprinted 1932), p. 43 (sta. 102; 

 notes), p. 47 (listed). — .Moktensen, Danmarks fauna. No. 27, 1924, p. 20. — Schorygin, Ber. 

 Wiss. iMeeresinst. Moscow, vol. 1, pt. 8, 1925, p. 3 (listed), p. 6 (Barents Sea station 16b), p. 8 

 (station 98), p. 21 (stations; notes). — Koehler, Les 6chinodermes des mers d'Europe, vol. 2, 

 1927, p. 126 (description; range), pi. 11, figs. 3, 9, pi. 18, figs. 2, 3.— Gorbunow, Trans, .\rctic 

 Inst., Leningrad, vol. 8, 1933, p. 78 (in Ru.ssian). — Thorson, Medd. Gr0nland, vol. 100, No. 6, 

 1936, pp. 22, 24. — Le Danois, Les profundeurs de la mer, Paris. 1948, pp. 148, 245. 



Ilalhromctra (Antedon) prolisa Mortensen, Danmarfc-Expedition til Gr0nlands NE kyst, vol. 5, 

 No. 4, Medd. Gr0nland, vol. 45, 1910, p. 239 (taken by the Danmark); No. 8, 1911, p. 399. 



Ilalhromctra tenella (not of Retzius, 1783) Vaney, Bull. Mus. Hist. Nat. Paris, vol. 20, No. 1, 1914, 

 p. 26 (Pourquoi-Pasf sta. 79). 



Hathrometra sarsti (not of Diiben and Koren, 1846) von Hofste.n, Kungl. Svenska Vet.-Akad. Handl., 

 vol. 54, 1915, p. 247 (of Marenzellcr, 1878; Fischer, 1886; PfefTer, 1894; Schmidt, 1 904 = proii>a). 



Poliomelra prolixa A. H. Clark, The Danish /njfoy-Exped., vol. 4, No. 5, Crinoidea, 1923, p. 8 (local- 

 ities), p. 42 (range). — -Gisl^n, Ark. Zool., vol. 15, No. 23, 1923, pp. 15-23 (discussion; synonymy; 

 localities); Zool. Bidrag Uppsala, vol. 9, 1924, p. 28, p. 41 (measurements), pp. 82, 275; fig. 89, 

 p. 81; fig. 187, p. 98; fig. 302, p. 217. — Mortensen, Danmarks Fauna, No. 27, 1924, p. 20.— 

 Koehler, Les 6chinodcrmcs des mers d'Europe, vol. 1, 1924, p. GO (18-1960 meters). — Grieg, 

 Bergens Mus. Aarb. for 1923-24, No. 9, 1925, pp. 8, 11, p. 24 (Blaafjeld and Tovik stations).— 

 MoRTBNSEN', Handbook of the echinoderms of the British Isles, 1927, p. 32 (diagnosis; habits; 

 parasites; range); fig. 18, p. 32; fig. 19, 1, 2, p. 33 (pentaerinoids). — Schorygin, Bar. Wiss. 

 Meeresinst. Moscow, vol. 3, pt. 4, 1928, p. 24 (distribution in the Barents Sea; temperature, 

 bottom and salinity conditions), p. 123 (absent in southern Barents Sea), table facing p. 128 

 (bathymetric and thermal ranges and salinity range). — Mortensen, Medd. Gr0nland, vol. 79, 

 No. 2, 1932, p. 6 (station 73; notes), p. 50 (range), p. 57 (cold area). — Torto.\ese, Natura, 

 Milano, vol. 24, 1933, p. 163 (bathymetrical range). — Ekman, Tiergeographie des Meeres, 1935, 

 pp. 251, 378.— Grieg, Medd. Norges Svalb. Ishavs-Undersoek., Oslo, No. 26, 1935, p. 9 (recorded 

 from Franz Josef Land by Marenzellcr, Michailovskij and Gorbunow). — Heding, Medd. Gr0n- 

 land, vol. 104, No. 15, 1935, pp. 3, 5, p. 6 (E. Greenland), p. 9 (localities; notes on pentaeri- 

 noids). — A. II. Clark, Journ. W.ashington Acad. Sci., vol. 26, No. 7, 1936, p. 296 (Bartlett stas. 

 40, 41); Sci. Rep. Australasian Antarctic Exped. 1911-14, ser. C, vol. 8, pt. 4, 1937, p. 6 (distri- 

 bution); Explorations des mers de I'U.R.S.S., vol. 23, 1937, p. 222 (association with Heliomelra 

 glacialis) (in Russian), p. 229; Proc. U.S. Nat. Mus., vol. 89, 1940, p. 425 (listed), p. 432 (station 

 21); Mem. Soc. Cubana Hi.st. Nat., vol. 14, No. 2, 1940, p. 140.— Djakonov, Journ. General 

 Biol., Moscow, vol. 6, 1945, p. 132 (wide depth range). — EINAHSSO^f, The zoology of Iceland, 

 vol. 4, pt. 70, 1948, p. 5 (Icelandic localities), p. 46 (member of Arctic deep basin fauna), p. 47 

 (map of distribution about Iceland), pp. 58, 61 (distribution). — ^Torto.vese, Bull. Inst. Oceanogr. 

 Monaco, No. 956, 1949. p. 4 (depth range). — Htman, The invertebrates, vol. 4, Echinodermata, 

 1955, p. 113 (common between Denmark and Iceland). — Tortonese, Ann. Mus. Civ. Stor. 

 Nat. Genova, vol. 68, 1956, p. 182 (locality). — Blacker, Fish. Invest. (Min. Agric), London, 

 series 2, vol. 20, No. 10, 1957, pp. 16-18 (geographical, temperature and depth ranges in the 

 Bear Island-Spitzbergen area); fig. 7, p. 10, p. 33. 



Poliomctrn prolixa var. groenlandira Gisl^n, Ark. Zool., vol. 15, No. 23, 1923, p. 16 (Greenland and 

 the Faroe Channel; Spitzbergen specimens not typical). 



Poliomelra prolixa var. siberica Gisl^n, Ark. Zool., vol. 15, No. 23, 1923, p. 16 (Nova Zembla, Kara 

 Sea and Taimyr). 



Polimelra prolixa GiSLfix, ZooL Bidrag Uppsala, vol. 9, 1924, p. 11 (forked pinnule). 



Peliometra prolixa D.iakonov, Trav. Soc. Nat. Leningrad, vol. 56, pt. 2, 1926, p. 107 (in key). — 

 Gorbunow, Trans. Artie Institute, Leningrad, vol. 2, 1932 (in Russian), p. 95, p. 99 (Barents 

 Sea station 24, Queen Victoria Sea station 20), pp. 100, 119, 123, 124, 132, 136 (station 20), 

 p. 137 (station 24); vol. 7, 1933, p. 42 (Blagopolutschja Bay, station 12; Witnej Bay, station 11: 

 115 and 20 meters, mud), p. 53 (Zarnitza stations 11, 12, data); vol. 8, 1933, p. 5 (Marenzeller's 



