A MONOGRAPH OF THE EXISTING CRINOIDS 573 



bad tentatively placed it, in having a delicate narrow carinate line in the middle of the 

 dorsal surface of the division series and first two brachials, and in having the sides of 

 the division series thickly covered with fine granulations, forming a triangle in each 

 interradial area with the apex at about the level of the last axillary, something similar 

 to the ornamentation found in certain species of Crinometra. No mention had been 

 made of this granular ornamentation in the original description. In the same paper 

 the arms of subcarinata were compared with those of a new species, Mariametra mar- 

 garitifera (=M. vicaria). 



Toward the end of 1909 in a paper on the crinoids of the Copenhagen Museum, I 

 recorded and gave notes on five specimens of Mariametra subcarinata from three differ- 

 ent localities in the Korean Straits and on one without locality, and described a 4-rayed 

 individual from the Formosa Channel. In this paper I described the granular orna- 

 mentation on the division series and said that at the time I described this species this 

 very noticeable character in some unexplained way was overlooked, though I found it 

 to be one of the best means of identifying the species. I said that on reexamining the 

 type specimen I found this feature to be quite as marked in that as in the specimen 

 under consideration, though because of the very light color of the type specimen not 

 quite so evident at first glance. 



In my memoir on the crinoids of the Indian Ocean published in 1912, I listed 

 Mariametra subcarinata and gave its synonymy and range, and the range was further 

 discussed in 1913 and again in 1915. 



In my memoir on the unstalked crinoids of the Siboga expedition published in 

 1918, 1 included subcarinata in the key to the species of the genus Mariametra and gave 

 its range. 



In 1924 Dr. Torsten Gislen discussed various structural features of this species, 

 and in 1927 he recorded and described three specimens that had been collected by Dr. 

 Th. Mortensen in southern Japan. 



MARIAMETRA TICARIA (Dell) 



[See also vol. 1, pt. 2, fig. 129 (arm base), p. 79; fig. 197 (lateral view), p. 125; figs. 478, 479 (pinnule 



tip), p. 269; fig. 721 (disk), p. 346.] 



Antedon vicaria BELL, Proc. Zool. Soc. Lpndon, 1894, p. 396 (Macclesfield Bank; 30-40 fathoms), 

 p. 400 (in key; Spinifera group; description). A. H. CLARK, Proc. U. S. Nat. Mus., vol. 34, 

 1908, p. 499 (not identifiable; in reality a member of Palmata group) ; Crinoids of the Indian 

 Ocean, 1912, p. 38 ( = Mariametra vicaria). HARTLAUB, Mem. Mus. Comp. Zool., vol. 27, 



1912, p. 309 (in Spinifera group; history; discussion), p. 310 (insufficiently described). GISLEN, 

 Xungl. Fysiogr. Sallsk. Lund Forh., vol. 7, No. 1, 1936, p. 4 (Macclesfield Bank). 



Antedon 'tvariispina BELL, Proc. Zool. Soc. London, 1894, p. 396 (Macclesfield Bank, 50 fathoms). 

 A. H. CLARK, Crinoids of the Indian Ocean, 1912, p. 38 (identity); Smithsonian Misc. Coll., 

 vol. 61, No. 15, 1913, p. 88 (identity). GISLEN, Kungl. Fysiogr. Sallsk. Lund Forh., vol. 7, 

 No. 1, 1936, p. 4 (Macclesfield Bank). 



Mariametra margaritifera A. H. CLARK, Proc. Biol. Soc. Washington, vol. 22, 1909, p. 145 (descrip- 

 tion; 2 miles off Great West Torres Island); Crinoids of the Indian Ocean, 1912, p. 141 (syn- 

 onymy; detailed description; locality), fig. 16, p. 141; A. H. CLARK, Proc. Biol. Soc. Washington, 

 vol. 26, 1913, p. 144 (listed). 



Mariametra vicaria A. H. CLARK, Crinoids of the Indian Ocean, 1912, p. 38 (identity of previous 

 records); p. 142 (synonymy; detailed description of the 2 known specimens; locality); Proc. 

 Biol. Soc. Washington, vol. 26, 1913, p. 144 (listed); Smithsonian Misc. Coll., vol. 61, No. 15, 



1913, p. 30 (published references to specimens in the B. M.; localities); Unstalked crinoids of the 



