A MONOGRAPH OF THE EXISTING CRINOIDS 131 



Siboga station 80; Borneo Bank (lat. 2°25' S., long. 117°43' E.); 40-50 meters; 

 fine coral sand; June 13, 1899 [A. H. Clark, 1918] (4, U. S. N. M., E. 430; Amsterdam 

 Mus.). 



Siboga station 310; south of Sumbava (lat. 8°30' S., long. 119°07'30" E.); 73 

 meters; sand with a few pieces of dead coral; February 12, 1900 [A. H. Clark, 1918] 

 (1, Amsterdam Mus.). 



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

 about 50 meters; stones and sand; March 2, 1922 (1). 



Investigator; Port Blair, Andaman Islands [A. H. Clark, 1912] (1, I. M.). 



Investigator station 17; off the northern coast of Table Island, Andamans; 27-64 

 meters; coral; December 8, 1888 [A. H. Clark, 1912] (1, I. M.). 



Investigator; Andaman Islands (3, U. S. N. M., 35315 [original No. 19B], 36242, 

 36243). 



Investigator station 61; east-northeast of Proparis Island, Bay of Bengal (lat. 14° 

 54' 30" N., long. 93° 51' 00" E.); 75 meters; sand, shells, and coral; November 30, 

 1889 [A. H. Clark, 1909, 1912] (4, U. S. N. M., 35271, 35272, 35318). 



Investigator station 387; off Cape Negrais, Burma (lat. 15° 25' N., long. 93° 45' 

 E.); 73-89 meters; sand and coral; November 16, 1909 (1, U. S. N. M., 35347). 



Investigator station 175; off northeastern Ceylon (lat. 8° 51' 30" N , long. 81° 

 11' 52" E.); 51 meters; sand, shells, and stones; April 20, 1894 [A. H. Clark, 1912; 

 H. L. Clark, 1915] (3, U. S. N. M., 35324; I. M.). 



Geographical range.— From, the Philippines southward to the Lesser Sunda Islands 

 and the Moluccas, and westward to Ceylon. 



Bathymetrical range. — From 42 (?27) to 106 meters; the average of 11 records is 

 61 meters. 



History. — This species was first described by me under the name Colobometra 

 discolor in 1909 from four specimens from Investigator station 61. In the original 

 description only the latitude and longitude were given, and the former was written 

 lat. 14° 04' 30" N. instead of lat. 14° 54' 30" N. as it should have been. In a paper 

 on the crinoids of the Copenhagen Museum published later in 1909 I compared 

 Colobometra discolor with the new species C. vepretum. In a paper on a third con- 

 signment of crinoids from the Albatross PhUippLne expedition published by me in 

 1911, one specimen was recorded from station 5355 and two were recorded from sta- 

 tion 5356. Notes on these specimens were given. In a paper on a collection of 

 crinoids made by the Royal Indian Marine Surveying steamer Investigator in the seas 

 about India published by me in July 1912, a specimen was recorded from Table Is- 

 land in the Andaman group. In my memoir on the crinoids of the Indian Ocean 

 published later in 1912, Colobometra discolor was redescribed and figured, and in addi- 

 tion to the type series specimens were mentioned from off northeastern Ceylon and 

 from off Port Blair, Andaman Islands. In giving the type locality the mistake made 

 in 1909 was repeated: 



In 1915 Dr. Hubert Lyman Clark listed Colobometra discolor as among the littoral 

 echinoderms of Ceylon on the strength of the author's record from northeastern 

 Ceylon published in 1912. 



In my memoir on the crinoids of the Siboga expedition published in 1918, I 



