246 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



angular, half again as broad as long, the second is twice as broad as long, the third is 

 about as long as broad, and the distal are about twice as long as broad or slightly 

 longer. The pinnule is roundedly prismatic. The second-fourth segments are slightly 

 carinate, but less strongly so than the corresponding segments of P,. The longer 

 outer segments have the distal ends armed with fine spines along the end of the broad 

 prismatic crest, but these spines are not conspicuous. In general this pinnule is but 

 slightly enlarged and appears almost rounded and practically smooth. P 3 is about 

 as long as P,, and is shorter, less stout, and distally more flexible than P 2 . The second 

 and third segments of this and three or four of the pinnules immediately succeeding 

 are slightly carinate. 



The arms as far as the second syzygy are purple with a broad brownish-yellow 

 median band, from that point onward brownish yellow with two or three broad and 

 widely spaced purple, bands. The cirri are brownish yellow. 



The specimen described is that from Amoy collected by Dr. T. Y. Chen (U S 

 N. M., E. 3100). 



Notes. In the specimen from Fuchow there are 23-24 cirrus segments which 

 become nearly as long as broad distally. P 2 is 7 mm. long with 18 segments that pos- 

 sess only a slight trace of lateral processes. The second-fourth segments of the earlier 

 pinnules are carinate. 



Localities. Fuchow, Province of Fukien (Fokien), China; Consul S. Siemssen, 

 December 18, 1905 [A. H. Clark, 1912, 1913] (1, H. M.). 



Amoy, Province of Fukien, China (lat. 24 28' N., long. 118 08' E.); Dr T Y 

 Chen (1, U. S. N. M., E. 3100). 



Amoy; Prof. C. Ping, 1924 (4, B. M.). 



Province of Fukien; China; Prof. C. Ping [G. A. Smith, 1927] (4, B. M.). 

 Geographical range. Known only from the coast of the Province of Fukien, China. 

 Bathymetrical range. Littoral. 



History. In a paper on the crinoids of the Hamburg Museum published in 1912, 

 I recorded and gave notes on a specimen from Fuchow which I referred to Oligometra 

 serripinna. In a list of the crinoids known from between Cochin China and Korea 

 (Chosen) published in 1913, I included Oligometra serripinna from Fuchow, the speci- 

 men referred to being that in the Hamburg Museum. In my report on the unstalked 

 crinoids of the Siboga expedition published in 1918, 1 included the new name chinensis 

 in the key to the species of the genus Oligometra, with the locality Fuchow, China. 

 The characters of chinensis were taken from my notes on the specimen from Fuchow 

 in the Hamburg Museum. 



In 1927, George Alexander Smith recorded Oligometra chinensis from Fukien. 

 This record was based upon specimens that had been presented to the British Museum, 

 together with some other echinoderms, by Prof. C. Ping of the University of Amoy. 

 As Mr. Smith said, these specimens had been sent to me for determination. 



Genus CLARKOMETRA Gislen 



Clarkometra GISLN, Nova Acta Reg. Soc. Sci. Upsaliensis, ser. 4, vol. 5, No. 6, 1922, p. 7 (relation- 

 ships), pp. 10, 142 (characters; genotype C. elegans); Zool. Bidrag Uppsala, vol. 9, 1924, p. 54 

 (influence of absence of lower pinnules), p. 212 (pinnule gap), fig. 84, p. 81 (syzygial face); 

 Kungl. Fysiogr. Sallsk. Handl., new ser., vol. 45, No. 11, 1934, p. 18; Kungl. Svenska Vet.- 

 Akad. Handl., ser. 3, vol. 17, No. 2, 1938, p. 15. 



