• 54 



armed with spinules which become very numerous <>n the lateral portion 

 of the dorsal surface of the Ilir,; .1 broad and low, almost obsolete, 

 carination on the arms; arms 125 mm. long; cirri with 40 — 55 seg- 

 ments, 40 mm. I outhern Japan; 664 — 720 Metres) . . aster 



lements of the division series and first two brachials perfectly smooth, 

 without spines 



cirri with at least 1 gments 



lents of the division serie-, and first two brachials with narrowly 

 prominent boniers and low narrow median kcels; arms 1 20111111. long; 

 cirri with 5 5 — 60 segments (Hawaiian Islands; 245 .Metres) crassicirra 

 elements of the division series and first two brachials without 

 modified borders, and with 110 tracé of a median keel 

 e 1 about 50 cirrus segments iSt. Vincent, West In dies; 



[58 Metres) koek Ier i 



about. 70 cirrus segments (southern Japan; "deep water") cotlifera 

 cirri with not more than 45 segments; division series strongly, but 

 roundedly, carinate 



d 1 cirri longer and more slender, 30 mm. long with 29 — 31 segments; 

 carination of the division series broader; lower brachials with a 

 broad median keel (Sa va de Mal ha; 243 Metres) . . . . gar diner i 

 cirri shorter and stouter. 27 mm. long with 40 — 41 segments; 

 carination of the division series narrower; lower brachials with a 

 faintly indicated crest (Sa hul Bank; no depth recorded) . woodmasoni 



1. Cosmiometra koehleri A. II. Clark. 



HARTLAUB. Memoirs Mus. Comp. Zool., vol. 27, 1012. N° 4. p. 360, pi. 3, figs 2. 4: pi. 14, 

 figs. 5, 10 (Antedon duplex, part). 



2. Cosmiometra cotlifera (llartla 



Hak ii. .\u;. Nova Acta dei Ksl. Leop.-Carol. deutschen Akad. der Xaturforsch., vol. 58, [891, 

 X" 1. p. 70. pi. 4, fig. j.6; pi. 5, figs. 51, 56 Antedon conij 



Cosmiometra delieata A. 11. Clark. 

 A. II. CLARK. Proc. U.S. National Museum, vol. $4, 1908, p. 225 [Thalassometra dein: 



\. Cosmiometr* icirra (A. 11. Clark'. 



A. II. Clark. Proc. U.S. National Museum, vol. 54, 1908, p. 225 (Thalassometra crassicirra). 



5. Cosmiometra gardineri A. II. Clark. 



A. II. I P U.S. National Museum, vol. 40, 1911, p. 31 (Cosmiometra gardim 

 Smithsonian Miscellaneous Coilections, vol. 61, 191 ;. \' 1 5, p. 43 (Cosmiometra gardineri). 



