")7N BULLETIN 82, I MTE1> STATES NATIONAL MUSEUM 



The color in alcohol is white, the divisioa series and arms with a narrow median dorsal 

 line of deep purple. 



LoeaUHee.— Macclesfield Bank; o5-73 meters [Bell, 1804; A. 11. Clark, 1908, 

 1912, 1913, 1918; Bartlaub, 1912] (1, B. M.). 



Macclesfield Bank; 91 meters [Bell, L894;A. H. Clark, 1912, 1913, 1918] (1,B. Mi. 



Dr. Th. Mortensen'a Pacific expedition, 1914-1916; off Jolo (Sulu); about 36-55 

 meters; sand and coral; March 19, 1914 (1). 



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

 about 91 meters; stones and Band; February 21, 1922 (1). 



Danish expedition to the Eei Islands; Dr. Th. Mortensen; station 24; 100 meters; 

 hard bottom; April 15, 1922 (1). 



Danish expedition to the Kci Islands; Dr. Th. Mortensen; station 54; 85 meters; 

 sand and coral; May 9, 1922 (1). 



Siboga station 49a; Sapeh Strait, between Sumbava and Komodo (lat. 8°23'30" 

 S., long. 119°04'36" K.); 69 meters; coral and shells; April 14, 1899 [A. H. Clark, 

 1918] (1, Amsterdam Mus.). 



Investigator; two miles off Great West Torres Island, Mergui Archipelgago [A. H. 

 Clark, 1909, 1912] (1, I. M.). 



Geographical range. — From the Macclesfield Bank southward to Amboina, the 

 Kci Islands, and Sapeh Strait, between Sumbava and Komodo, and westward to the 

 Mergui Archipelago. 



Bathymetrical range. — From 55 (?36) to 100 meters; the average of 7 records is 

 73 meters. 



History. — Antedon vicaria was described by Prof. F. Jeffrey Bell in 1S94 from a 

 much broken specimen from the Macclesfield Bank. He described it as a member 

 of Carpenter's Spinifera group of Antedon (which included the species of the families 

 Thalassometridae and Chnritometridae with the IIBr series 2), and compared it only 

 with Ptilometra macronema. At the same time he recorded another specimen from 

 the Macclesfield Bank under the name of Antedon 'tvariispina. 



In 190S I wrote that Antedon vicaria is not identifiable from the published descrip- 

 tion. Although described in the Spinifera group, it is in reality a member of the 

 Palmata group. 



In 1909 I described Mariametra margaritifera from a single broken specimen that 

 had been dredged by the Investigator off Great 'West Torres Island in the Mergui 

 An lupelago. 



In my memoir on the erinoids of the Indian Ocean published in 1912, I rede- 

 scribed and figured Mariametra margaritifera, and under the heading Mariametra 

 vicaria redescribed the type specimen of Bell's Antedon vicaria and Bell's second 

 specimen from Macclesfield Bank. I said that in the original description this species 

 was referred to Carpenter's Spinijera group and compared with Ptilometra macronema, 

 with which it has not the remotest relation. 



In discussing Carpenter's Spinifera group in 1912, Dr. Clemens Hartlaub said 

 that the description of Antedon vicaria is very deficient, and in the absence of a figure 

 we can form no correct opinion in regard to the species. 



In 1913 in a paper on the erinoids of the British Museum, under the name of 

 Mariametra vicaria I redescribed the type specimen of Bell's Antedon vicaria and also 



