94 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



Notes. The specimen from Port Galera resembles the type and has also 11 arms. 



Abnormality. In the type specimen one of the distal pinnules is forked, the 

 first segment being an axillary and bearing two similar pinnules. 



Localities. Southwest of Sorsog6n Bay, Luz6n, Philippine Islands (lat. 12 50' 

 00" N., long. 123 50' 25" E.); 16-73 meters; cable repair ship Rizal (A. S. Day), 

 September 1912 [A. H. Clark, 1920, 1929] (1, M. C. Z., 705). 



Port Galera, Mindoro (the port or largely enclosed bay formed by a promontory 

 on the northwestern side of the extreme northern peninsula of Mindoro and outlying 

 islands); Dr. Lawrence E. Griflin [A. H. Clark, 1920, 1929] (1, M. C. Z., 706). 



History. I described this species under the name of Oligometrides bellona in 1920 

 from two specimens in the Museum of Comparative Zoology, one from Sorsogon Bay, 

 Luz6n, in 9-40 fathoms, that had been taken from a cable raised to the surface by 

 the cable repair ship Rizal in September 1912, and one that had been collected at 

 Port Galera, Mindoro, by Dr. Lawrence E. Griffin. 



In 1929 upon the establishment of the genus Iconometra this species was listed 

 by me as Iconometra bellona. 



ICONOMETRA JAPONICA (Hartlaub) 



PLATE 10, FIGURES 53, 54; PLATE 11, FIGURES 55, 56; PLATE 26, FIGURES 134, 135 



Antedon japonica HARTLAUB, Nachr. Ges. Gottingen, 1890, p. 172 (description; Japan); Nova 

 Acta Acad. German., vol. 58, No. 1, 1891, p, 84 (detailed description and comparisons; Japan); 

 pi. 5, fig. 49. A. H. CLARK, Smithsonian Misc. Coll., vol. 50, pt. 3, 1907, p. 353 (listed) ; Proc. 

 U. S. Nat. Mus., vol. 34, 1908, p. 478 (listed); vol. 43, 1912, p. 384 (identity); Crinoids of the 

 Indian Ocean, 1912, p. 37 (same). 



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

 p. 1579 (listed). 



Oligometra japonica A. H. CLARK, Proc. Biol. Soc. Washington, vol. 21, 1908, p. 126 (listed) ; vol 

 22, 1909, p. 7 (listed), p. 42 (compared with 0. [Decamefra] sluderi); Smithsonian Misc. Coll., 

 vol. 60, No. 10, 1912, p. 28 (compared with 0. serripinna from Tonga; discussion of this and 

 comparable varieties of 0. serripinna); Proc. U. S. Nat. Mus., vol. 43, 1912, p. 384 (=Anledon 

 japonica Hartlaub), p. 400 (Japan; redescription of the type); Crinoids of the Indian Ocean, 

 1912, p. 37 (identity), p. 175 (synonymy; localities [these include those of Prometra owstoni and 

 P. longipinna]) ; Smithsonian Misc. Coll., vol. 60, No. 10, 1912, p. 28 (compared with 0. occi- 

 dentalis and with 0. serripinna); Journ. Washington Acad. Sci., vol. 5, No. 6, 1915, p. 214 

 (southern Japanese species; range and its significance) ; Unstalked crinoids of the Siboga-Exped., 

 1918, p. 130 (in key; range). GISLEN, Vid. Medd. Dansk Naturh. Foren., vol. 83, 1927, p. 29 

 (Mortensen's station 17; notes), figs. 19-22, p. 27. 



Diagnostic features. The 10 arms are 40-75 mm. long; the cirri are XIV-XXIII, 

 20-29, the longest 9-15 mm. long; the dorsal transverse ridges on the segments are 

 at first subterminal, finally becoming median; P 2 and P 3 are similar and of nearly or 

 quite the same size, stout, stiff ened, recurved, and entirely smooth, composed of 10-18 

 segments of which the second-fourth are slightly carinate; PI is similar but shorter 

 and somewhat more slender distally; the distal ends of the proximal brachials are 

 only slightly produced. 



This is a rather robust species, stouter and usually larger than the other species of 

 the genus. 



Description. The centrodorsal is a moderately thick disk with a slightly concave 

 dorsal pole. The cirri are arranged in two marginal rows. 



