PART 5 A MONOGRAPH OF THE EXISTING CRINOIDS 295 



b 2 . Third syzygy rarely beyond brachials 14+15; cirri often more than L. 

 c 1 . P! with about 60 or more segments. 



<P. Cirri L-LXXX, the longest segments of the peripheral ones about twice as long as their 

 proximal widths; axillary with distal angle truncated; size up to 230 mm. arm length 

 (Monterey Bay to the Bering and Okhotsk Seas and northern Japan; 79-1574 meters). 



asperrima (p. 318) 



d?. Cirri L-LCV, the longest segments about two and a half times as long as their proximal 

 widths; axillary with distal angle acute; size up to 130 mm. (Southern Ocean to the south 



of New Zealand; 159-163 meters) austini (p. 324) 



c 2 . Pj rarely with more than 50 segments. 



<?. No dorsal spines on the cirri, opposing spine very blunt; cirri XC to over C (vicinity of 



Cough Island, South Atlantic; 183-472 meters).- -- goughi (p. 328) 



if. Prominent dorsal spines present on the cirrus segments and the opposing spine very acute; 

 cirri XL-LXXVII mawsoni (p. 331) 



FLOROMETRA MAGELLANICA (Bell) 



[See vol. 1, pt. 2, figs. 580-581 (p. 298), 588-591 (p. 303)] 



Antedon eschrichli var. magellanica BELL, Proc. Zool. Soc. London, 1882, p. 651 (Straits of Magellan; 

 comparison with [Heliometra] eschrichti [glacialis]; remarks); fig. b, p. 651 (Pt). P. H. CARPENTER, 

 Bijdr. Dierkunde, vol. 13, 1886, p. 4 (a distinct species; differential characters). A. H. CLARK, 

 Proc. U.S. Nat. Mus., vol. 34, 1908, p. 470 (cannot be separated from rhomboidea on the basis 

 of the characters given by Carpenter). 



Comalula, sp. CIIIERCHIA, Rivista Marittima, vol. 18, 1885, p. 9 (Vettor Pisani, Desolation I.). 



Antedon magellanica P. H. CARPENTER, Bijdr. Dierkunde, vol. 13, 1886, p. 4 (a distinct species; 

 differential characters); Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 138 (in key), p. 

 149 (notes). HAMANN, Jenaische Zeitschr., vol. 23, neue Folge 16, 1889, p. 234 (anatomy). 

 HARTLAUB, Bull. Mus. Comp. Zool., vol. 27, No. 4, 1895, p. 137 (range). DODERLEIN, Fauna 

 Arctica, vol. 4, Lief. 2, 1905, p. 404 (antarctic representative of the Eschrichti group). HAMANN, 

 Bronn's Klassen und Ordnungen des Tier-Reichs, vol. 2, Abt. 3, 1907, p. 1579 (listed). A. H. 

 CLARK, Die Crinoiden der Antarktis, 1915, pp. 120-122 (systematic and structural relationships). 



Antedon rhomboidea P. H. CARPENTER, Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 148 

 (description; Challenger Sta. 308; comparisons), pi. 12, figs. 1, 2, pi. 24, figs. 1-3. HARTLAUB, 

 Bull. Mus. Comp. Zool., vol. 27, Xo. 4, 1895, p. 137 (range, in part), p. 138 (Smyth's Channel, 

 Dr. Rehberg; the Albatross specimens described as this species are Floromelra tannerfj. ORT- 

 MANN, Amer. Nat., vol. 33, No. 391, July 1899, p. 588 (bearing on bipolarity). LUDWIQ, Ham- 

 burger Magalhaenische Sammelreise, Crinoiden, 1899, p. 1 (Puerto Bueno, Smyth Channel; 30 

 meters or less). DODERLEIN, Fauna Arctica, vol. 4, Lief. 2, 1905, p. 404 (antarctic representative 

 of the Eschrichti group). HAMANN, Bronn's Klassen und Ordungen des Tier-Reichs, vol. 2, Abt. 

 3, 1907, p. 1579 (listed). GISLEN, Zool. Bidrag Uppsala, vol. 9, 1924, p. 287 (synonym of F. 

 magellanica). 



Heliometra magellanica A. H. CLARK, Smithsonian Misc. Coll., vol. 50, pt. 3, 1907, p. 351 (listed); 

 Bull. Mus. Hist. Nat., Paris, No. 4, 1911, p. 257 (Mission sci. du Cap Horn Stas. 100, 103, 121), 

 p. 258 (Stas. 165, 177, 179, 182; description of the specimens; same as Antedon australis and 

 A. rhomboidea Carpenter); fig. 2, p. 258 (distal part of a proximal pinnule). 



Heliometra rhomboidea A. H. CLARK, Smithsonian Misc. Coll., vol. 50, pt. 3, 1907, p. 351 (listed). 



Floromelra magellanica A. H. CLARK, Smithsonian Misc. Coll., vol. 61, No. 15, 1913, p. 62 (references 

 to specimens in the B.M.; Swallow Bay, 12 fms.; Challenger Sta. 308; Tom Bay; rhomboidea 

 is a synonym of this species); Bull. Inst. Oceanogr. Monaco, Xo. 285, 1914, p. 9 (range); Journ. 

 Washington Acad. Sci., vol. 5, No. 3, 1915, p. 81 (Antarctic; range) ; Die Crinoiden der Antarktis, 

 1915, p. 107 (in key to antarctic crinoids), p. 124 (discussion ef the type), p. 168 (a shallow- 

 water Antarctic species; a Magellanic form); Unstalked crinoids of the Siboga-Exped., 1918, 

 p. 242 (in key; range; references), p. 244 (discussion). GISLEN, Zool. Bidrag Uppsala, vol. 9, 

 1924, p. 287; Ark. Zool., vol. 19, No. 32, 1928, p. 11 (B.M. specimen from near Cape Providence, 

 Magellan Strait). EKMAN, Tiergeographie des Meeres, 1935, p. 319. 



