396 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



KEY TO THE SPECIES IN THE GENUS PTILOMETRA 



o'. Proximal cirrus segments as long as, or longer than, broad; cirrus sockets in more or less definite 

 columns, three to each radial area; middle segments of the proximal pinnules half again to 

 twice as long as broad; distal pinnules with the third and following segments longer than 

 broad (western and southern Australia from Dirk Hartog Island southward and eastward to 

 Port Phillip and Flinders Island; 0-113 meters) macronema (p. 396) 



o*. Proximal cirrus segments about twice as broad as long, or at least broader than long; cirrus 

 sockets usually irregularly arranged; middle segments of the proximal pinnules not so long 

 as broad; distal pinnules with the segments broader than long until the distal third (south- 

 eastern Australia from Port Phillip eastward and northward to the Clarence River; 0-86 

 [?IIO] meters) australis (p. 403) 



PTILOMETHA MACRONEMA (J. Muller) 



Plate 40, Figure 206 



[See also vol. 1, pt. I, fig. 93 (lateral view), p. 153; fig. 360 (cirrus), p. 295; pt. 2, figs. 857, 858 (side- 

 and covering-plates), p. 412.] 



Comalula macronema (Valenciennes, MS.) J. MtJLLEH, Monatsb. preuss. Akad. Wiss., 1846, p. 

 179 (description; King George's Haven); Abh. preuss. Akad. Wiss., 1847, 1849, p. 258 

 (redescribed) . — Duj.^rdin and Hupfi, Histoire naturelle des Zoophytes, Echinodfermes, 1862, 

 p. 203 (description; Australia). — A. H. Clark, Bull. Mus. Comp. Zool., vol. 51, No. 8, 1908, 

 p. 245 (genotype of Ptilomelra) ; Bull. Mus. Hist. Nat., Paris, 1911, No. 4, p. 244 (identity); 

 Die Fauna Siidwest-Australiens, vol. 3, Lief. 13, 1911, p. 436 (history); Mem. Australian Mus., 

 vol. 4, 1911, p. 712 (history); Crinoids of the Indian Ocean, 1912, p. 30 (identity). 



Comalula (Antedon) macrocnema P. H. Carpenter, Nature, vol. 15, 1877, p. 197. 



Antedon macrocnema P. H. Carpenter, Nature, vol. 15, 1877, p. 197; Proc. Roy. Soc, vol. 28, 1879, 

 p. 386; Trans. Linn. Soc. (Zool.), ser. 2, vol. 2, 1879, p. 29 (listed as an Antedon). 



Antedon macronema Bell, Proc. Zool. Soc. London, 1882, pp. 533, 534 (specific formula). — P. H. 

 Carpenter, Proc. Zool. Soc. London, 1882, 1883, pp. 733, 746 (correction of Bell's specific 

 formula) ; Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 212 (record from King Georges 

 Sound, quoted from Muller, only). — Studer, Die Forschungsreise S. M. S. Gazelle in der Jahre 

 1874-6, vol. 3, Zool. und Geol., 1889, p. 185 (Dirk Hartog Island; habits and color in life).— 

 P. H. Carpenter, Proc. Roy. Soc. Victoria, new ser., vol. 2, 1890, p. 135 (Port Phillip). — 

 Hartlaub, Nova Acta Acad. German, vol. 58, No. 1, 1891, p. 75 (only species of the Spinifera 

 group not from deep water). — Hamann, Bronns Klassen und Ordnungen des Tier-Reichs, vol. 2, 

 Abt. 3, 1907, p. 1581 (listed).— A. H. Clark, Mem Australian Mus., vol. 4, pt. 15, 1911, pp. 715, 

 716 (identification of references); Crinoids of the Indian Ocean, 1912, pp. 34, 37, 104, 179 

 (identification of references) ; Smithsonian Misc. CoU., vol. 61, No. 15, 1913, p. 84 (B. M., 

 M.S. = Zygometra microdiscus+Oreometra mariae-\- Ptilometra mulleri [ = australis]) . — Hart- 

 laub, Mem. Mus. Comp. Zool., vol. 27, No. 4, 1912, p. 309 (in Spiniferia group; history). 



Antedon mucronata Hamann, Bronns Klassen und Ordnungen des Tier-Reichs, vol. 2, Abt. 3, 1907, 

 p. 1580 (listed). 



Alecto macronema A. H. Clark, Smithsonian Misc. Coll., vol. 50, pt. 3, 1907, p. 358 (error for Comalula 

 macronema J. Muller, 1846). 



Ptilometra macronema A. H. Clark, Smithsonian Misc. Coll., vol. 50, pt. 3, 1907, p. 359 (listed); 

 Bull. Mus. Hist. Nat., Paris, 1911, No. 4, p. 244 {=Comatula macronema J. Muller), p. 255 

 (Australia; description; same as P. dorcadis; range), fig. IB, p. 256 (cirrus of a specimen from 

 Kangaroo Island); Die Fauna Siidwest-Australiens, vol. 3, Lief. 13, 1911, pp. 442-444 (range), 

 p. 449 (range of Comatulella brachiolata falls within the range of this species), p. 460 (6-rayed 

 specimen from Kangaroo Island), p. 461 (new localities; description of young specimens; dis- 

 cussion of Himerometra paedophora, wnich is the young of P. mulleri [australis]), pp. 465, 466 

 (association with other species) ; Mem. Australian Mus., vol. 4, 191 1, p. 717 (known to Carpenter 

 from Australia), p. 722 (confined to southern Austraha; range), p. 724 (Turtle Bay, Dirk Hartog 

 Island), p. 735 (in key), p. 781 (annotated synonymy; characters; 6-rayed specimen; history; 



