87 

 5. Amphimetra discoidea (A. H. Clark). 



Grube. Jahresber. der schlesisch. Ges. für vaterl. Cultur, [875, p. 74 [Comatula laevissima, part). 



Bell. Proc. Zool. Soc. London, 18S2, p. 533 [Antedon laevissima, part). 



P. H. Carpenter. Proc. Zool. Soc. Londen, 1SS2 (1883), p. 746 (Antedon laevissijna, part). 



Bell. "Alert" Report, 18S4, p. 156 (Antedon milberti, part). 



Proc. Linn. Soc. New South Wales, vol. 9, 1884 (1885), p 497 (Antedon milberti). 



P. H. CARPENTER. "Challenger" Reports. Comatulae, 1888, p. 194 (Antedon milberti, part; 

 Australian records). 



BELL. Proc. Zool. Soc. London, 1894, p. 394 (Antedon milberti). 



A. H. CLARK. Smithsonian Miscellaneous Collections (Ouarterly Issue), vol. 50, 1907, part 3, 

 p. 356 (Himer ometra milberti, part). 



HAMANN. Bronn's Klassen und Ordnungen des Tier-Reichs, vol. 2, 1907, Abt. 3, p. 1580 

 (Antedon milberti, part). 



A. H. CLARK. Smithsonian Miscellaneous Collections (Quarterly Issue), vol. 52, 1908, part 2, 

 p. 214 (Himerometra anceps, specimens without definite locality; the others represent Hetero- 

 metra quinduplicava)\ p. 215 (Himerometra diseoidea). 



Proc. Biol. Soc. Washington, vol. 22, 1909, p. 7 (Amphimetra laevissima, part, and 



Amphimetra milberti, part). 



Vidensk. Medd. fra den naturhist. Forening i Kobenhavn, 1909, pp. 156, 157 (Amphi- 

 metra formosa). 



Die Fauna Südwest-Australiens, vol. 3, 191 1, Lief. 13, p. 459 (Amphimetra discoidea, 



except specimens here originally recorded, which represent A. jacquinoti, and the specimens 

 from New Guinea, which represent A. papiiensis). 



Buil. du mus. d'hist. nat., Paris, 191 1 N" 4, p. 250 (Amphimetra discoidea). 



- Memoirs of the Australian Museum, vol. 4, 191 1, part 15, p. j66 (Amphimetra discoidea). 



Crinoids of the Indian Ocean, 1912, p. 11 1 (Amphimetra milberti, part); p. 112 (Amphi- 

 metra laevissima, part, and Amphimetra discoidea). 



Smithsonian Miscellaneous Collections, vol. 61, 191 3, N" 15, p. 24 (Amphimetra discoidea). 



REICHENSPERGER. Abhandl. der Senck. naturforsch. Ges., vol. 35, 1913, Heft 1, p. 93 

 {Amphimetra discoidea). 



A. H. CLARK. Internationale Revue der gesamten Hydrobiologie und Hydrographie, 1915, 

 pp. 223, 224 (Amphimetra discoidea). 



Stat. 99. Anchorage off North Ubian. 16 — 23 Metres. 1 Ex. 



Stat. 273. Anchorage off Pulu Jedan, eastern coast of the Aru Islands (Pearl Banks). 13 

 Metres. 16 Ex. 



The specimen from Stat. 99 is typical, and resembles others at hand from Australia: 

 it is yellovv brown, the cirri and pinnules purple. 



A typical example from Stat. 273 has the arms 115 mm. long, and the cirri XV, 32 — 34, 

 22 mm. long; the longest cirrus segments are slightly broader than long; the disk is almost 

 completely covered with plates. There are twelve similar specimens, and two small and immature. 



A four-rayed individual similar to that described was secured; the missing ray appears 

 to be the anterior. 



These specimens exactly resemble others at hand from Oueensland and from north- 

 western Australia. The cirri are comparatively slender, tapering distally. 



Remarks. — Dujardin and Hupé mention that in the Paris Museum they fouhd a 

 comatulid bearing the name Comatula dibrachiata. I examined what I suppose is the same 

 specimen, a dried individual brought from Australia by MM. Péron and Lesueur. In my notes 



