212 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



Localities. Albatross station 5146; Sulu (Jolo) Archipelago, in the vicinity of 

 Siasi; Sulade Island (E.) bearing N., 18 W., 3.4 miles distant (lat. 5 46' 40" N., 

 long. 120 48' 50" E.); 44 meters; coral sand and shells; February 16, 1908 [A. H. 

 Clark, 1908] (1, U.S.N.M., 25438 [type]). 



Albatross station 5147; Sulu Archipelago, in the vicinity of Siasi; Sulade Island 

 (E.) bearing N. 3 E., 8.4 miles distant (lat. 5 41' 40" N., long. 120 47' 10" E.); 

 38 meters; coral sand and shells; February 16, 1908 [A. H. Clark, 1908] (1, U.S.N.M., 

 35205). 



Albatross station 5163; Sulu Archipelago, Tawi Tawi group; Observation Island 

 bearing N. 79 W., 6.7 miles distant (lat. 4 59' 10" N., long. 119 51' 00" E.); 51 

 meters; February 24, 1908 [A. H. Clark, 1908] (1, U.S.N.M., 35096). 



Siboga station 96; southeastern side of the Pearl Banks, Sulu Archipelago; 15 

 meters ; lithothamnion bottom; June 27, 1899 [A.H.Clark, 1918] (1, Amsterdam Mus.). 



Albatross; Philippine Islands; 1907-'08 [A. H. Clark, 1908] (1, U.S.N.M., 35193). 



Singapore; Svend Gad [A. H. Clark, 1909] (1, C.M.). 



Amboina; pier; 0-2 meters; Willebrord Snellius, May 6, 1930 (1, L.M.). 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; station 19 (4). 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; Amboina; breakwater; 

 about 1 meter; February 28, 1922 (2). 



Geographical range. From the Philippine Islands and Singapore south to Amboina 

 and the Kei Islands. 



Bathymetrical range. From the shoreline down to 51 meters. 



Remarks. This form is probably only a large East Indian race of H. persica from 

 the Persian Gulf. 



History. This species was originally described in 1908 from a specimen dredged by 

 the Albatross at station 5146 in the Philippines. At the same time another specimen 

 was recorded from station 5147, near the type locality. In the same paper H. persica 

 was recorded from Albatross station 5163, and from the Albatross Philippine collections 

 without further data. 



In 1909 I recorded and described from Singapore, under the name of Heterometra 

 martensi, a specimen that could only have been a young example of this species. I 

 said that P 2 is similar to, but smaller than, P D or PI and that these pinnules are flagel- 

 late distally. I remarked further that the proximal pinnules, though for the genus 

 unique in their proportionate lengths, are of the type common to all species of Het- 

 erometra. Pinnules resembling those of the species of Heterometra with the first the 

 longest are found only in H. bartschi and in H. persica. 



In my monograph of the crinoids of the Indian Ocean published in 1912, I gave 

 H. persica as occurring both in the Persian Gulf and in the Philippines, but in the 

 following year in a revision of the genus Himerometra the specimens from the Philip- 

 pines recorded in 1908 and 1912 as H. persica were redetermined as H. bartschi. 



In 1918 I recorded and gave notes upon a specimen from Siboga station 96, near 

 the type locality. 



HIMEROMETRA PERSICA A. H. Clark 



PLATE 19, FIGURES 70, 71 



[See also vol 1, pt. 1, fig. 318 (tip of cirrus), p 273; fig. 339 (cirrus), p. 285; pt. 2, fig. 272 (arm and 

 pinnules), p. 207; fig. 444 (pinnule tip), p. 261.] 



