172 BULLETIN 82, UNITED STATES NATIONAL MUSEUM VOLUME 1 



second, one of wliicli is about us long as the primary ones, the second is half us long, and 

 the third is quite short. The orals and the radianal arc quite distinct but resorption 

 has begun. That this spocunen has only just been detached is evident from the exist- 

 ence of a small hole in the middle of the centrodorsal. 



In a recently detached young with from 6 to 7 pinnules the oral pinnules are just 

 beginning to develop; the fifth to sixth pinnules are tlie largest, while the second to 

 fourth are much smaller. Usually the fourth would seem to be the last to develop, but 

 on one arm this is slightly larger than P2 and P3. P7 and Ps have not yet appeared, 

 which is the more remarkable as later these become larger than the other proximal pinnules 

 except P,. In the adults the four lowest pinnules have no tentacles. In this specimen 

 the orals and the radianal have disappeared. 



History. — This species was first mentioned, as a nomen nudum, in the list of species 

 retained in the genus Antedon in my first revision of the comatulids in 1907. It was 

 described and figured in the following year from a specunen in the Museum of Compara- 

 tive Zoology collected by Mr. Alan Owston in Tokyo Bay in 8 to 12 fathoms on October 

 22, 1899, and soon afterwards removed to the new genus Oompsometra. 



In the collection of crinoids purchased from Mr. Owston by Mr. Frank Springer 

 and given to the U.S. National Museum in 1907 I fomid another specimen of this species 

 bearing the same data as the type, which I recorded in 1908. In tlie following year I 

 recorded a third specunen from the Formosa Channel m 35 fathoms where it had been 

 secured by Captain Suensson. 



In 1908 before I had definitely determined the limits of the genus Compsometra, 

 which I was about to propose, I mentioned this form imder the name of Iridometra 

 serrata, when comparing it with the new species /. [Argyrometra] crispa. 



Dr. Th. Mortensen m 1920 described the early stages and the pentacrinoids of this 

 species and gave an accomit of its occurrence about Misaki, and in 1922 Dr. T. Gislen 

 described in detail a number of specimens which had been obtained at and near Misaki 

 by Dr. Sixten Bock in 1914. 



In 1927, Dr. Gislen gave notes on some further specimens from the Sagami Bay 

 area of Japan, hicluding one with arms 70 mm. long. 



The range of the species was extended to Tsingtao on the Shantung Peninsula of 

 central China by Chang (1948) who gave a description of his material, which included 

 specimens of up to 65 mm. arm length and with LV cirri. 



[Note by A.M.C] Following Gislen's synonymy of 1955, tliis species is now 

 referred back to Antedon. 



ANTEDON LOVENI Bell 



Figure \l,c-g 



[See also vol. 1, pt. 1, fig8. lOS (p. 174), 282 (p. 261), 371 (p. 299), 410 (p. 317), 497 (p. 369), pi. 4, fig. 



547; pt. 2, fig. 81, p. 53] 



1 Kallispongia archeri Wright, Proc. Roy. Irish Acad., ser. 2, vol. 2, 1877, p. 754. 



Antedon loveni Bell, Proc. Zool. Soc. London, 1882, p. 534 (specific formula).— P. H. Carpenter, 

 Proc. Zool. Soc. London, for 1882, 1883, p. 746 (corrected specific formula).— von Graff, Chal- 

 lenger Reports, Zoology, vol. 20, pt. 61, 1887, p. 4 {Antedon insignis of earlier report altered by 

 Bell to A. loveni in the Alert report).— P. H. Carpenter, Challenger Reports, Zoology, vol. 26, 

 pt. 60, 1888, p. 56, No. 3 (Bell's transfer of the name).— A. II. Clark, Proc. U.S. Nat. Mus., 

 vol. 34, 1908, p. 481 (history of the name); Mem. Australian Museum, vol. 4, 1911, p. 713 (history 

 of the name). 



