128 BULLETIN 8 2, UNITED STATES NATIONAL MUSEUM 



Singapore; Sveud Gad [A. H. Clark, 1909, 1912, 1918] (2, U. S. N. M., 35313; 



C. M.). 



Singapore; Prof. Edouard von Martens [A. H. Clark, 1912, 1918; Hartmeyer, 

 1916] (arm fragment, Bcrl. M., 6379 [5351]). 



Amboina; Dr. J. Brock, 1884-1885 [Hartlaub, 1891; A. H. Clark, 1909, 1912, 

 1918]. 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; Vatek van Toeal; 

 about 1-2 meters; rocky coast; March 27, 1922 (1). 



Geographical range. — From the Philippines to Singapore and southward to Am- 

 boina and the Kei Islands. 



Bathy metrical range. — From the shore line down to about 9 meters. 



History. — The first known specimen of this variety was one from Amboina, 

 which was recorded under the name Antedon perspinosa, figured, and partially de- 

 scribed, by Dr. Clemens Hartlaub in 1891. 



In 1909 I described Colohometra vepretum, which was based upon two specimens 

 that had been collected at Singapore by Svend Gad. At the same time I noted that 

 Hartiaub's specimen from Amboina appears to belong to this species. The only 

 difference that is apparent on comparing the specimens from Singapore with Hart- 

 iaub's figure of his specimen from Amboina is that in the latter the cirrus segments 

 are shown to be slightly longer. In 1911, after an examination of the type specimen 

 of Carpenter's Antedon jierspinosa in the Leyden Museum, I wrote that the stiffness 

 of P], which is composed of elongated segments, appears to separate perspinosa 

 sharply from vepretum, and to place it in the diadema group of species. In 1912 

 I recorded an arm fragment of this species in the Berlin Museum from Singapore 

 which had been collected by Prof. Edouard von Martens. In my memoir on the 

 crinoids of the Indian Ocean published in 1912 I listed Colohometra vepretum and 

 gave the synonymy and localities. 



Dr. Robert Hartmeyer in 1916 corrected the catalog number on the fragmentary 

 specimen from Singapore in the Berlin Museum. 



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

 1918 I included vepretum in my key to the species of Colohometra and gave the range. 



In my report on the comatulids of the Willebrord Snellius expedition published 

 in 1936 I wrote that specimens identified as perspinosa (see page 122) from Binongko 

 and Ternate are intermediate between perspinosa and the more recently described 

 vepretum, which probably represent the same specific type. 



COLOBOMETRA DISCOLOR A. H. Clark 



Plate 15, Figures 72-75; Plate 16, Figures 76-79 



ISee also vol. 1, pt. 1, fig. 350 (cirrus), p. 291; pt. 2, figs. 56, 57 (radial pentagon), p. 33; figs. 480-483 

 (pinnule tips), p. 269.] 



Colohometra discolor A. H. Clark, Proc. U. S. Nat. Mus., vol. 36, 1909, p. 640 (description; 

 14° 04' 30" N., 93° 51' 00" E.) ; Vid. Medd. Naturh. Foren. K0benhavn, 1909, p. 177 (compared 

 with C. vepretum); Proc. U. S. Nat. Mus., vol. 39, 1911, p. 543 (Albatross stations 5355, 5356; 

 compared directly with the type); Rec. Indian Mus., vol. 7, pt. 3, No. 26, 1912, p. 269 (off 

 Table Island, Andamans, 15-35 fms.) ; Crinoids of the Indian Ocean, 1912, p. 166 (detailed 

 description; localities), fig. 25, p. 167.— H. L. Clark, Spolia Zeylanica, vol. 10, pt. 37, 1915, p. 93 

 (occurs at Ceylon).— A. H. Clark, Unstalked crinoids of the St6offo-Exped., 1918, p. 123 (in 

 key; range), p. 124 (synonymy; notes; stations 80, 310), pp. 272, 276 (listed). 



