236 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



Oeograph ical range. — From the northern Philippines to the Kei Islands. 



Bathyiiutrical range. — From 245 to 929 meters. 



Thermal range— From 5.17° to 13.0° C. 



History. — This species was first mentioned by Prof. Ludwig von Graff as Antedon 

 tuberosa (nomen nudum) in 1884 in his account of the myzostomes of the Challenger 

 expedition; he gave the locality as station 210. It was formally described and figured 

 as Antedon tuberosa from one entire specimen and a second much broken from Challenger 

 station 210 by Dr. P. H. Carpenter in his report on the comatulids of the Challenger 

 expedition published in 1888. At the same time Dr. Carpenter described and figured 

 a young pentacrinoid from the same station which he said must belong either to Antedon 

 tuberosa or to A. distincta, the only two species dredged at this station. He said that 

 from the appearance of the pentacrinoid he thought it should be referred to A. tuberosa. 

 In 1895 Dr. Clemens Hartlaub discussed the systematic and bathymetrical relation- 

 ships of Antedon tuberosa. In 1896 Carpenter's figure was reproduced by Lang, and 

 in 1907 his figure of the pentacrinoid was reproduced by Dr. Otto Hamann. 



In my first revision of the genus Antedon published in 1907 tuberosa was assigned 

 to the new genus Charitometra, and in 190S Charitometra tuberosa was compared with 

 the new species Ch. lateralis. 



In my revision of the family Thalassometridae published on January 9, 1909, 

 Antedon tuberosa was made the type of a new genus, Glyptometra, and in a paper pub- 

 lished on May 13, 1909, I recorded and gave notes on a young specimen from Albatross 

 station 5236. 



In a paper published in 1911 I recorded and gave notes on a number of specimens 

 of Glyptometra tuberosa from Albatross stations 5367, 5406, 5431 (=5410), 5510, 5536, 

 and 5537, mentioning a 6-rayed specimen and another with an undivided postradial 

 series. 



In my memoir on the crinoids of the Indian Ocean published in 1912 Glyptometra 

 tuberosa was listed and the synonymy and range were given, the latter as Philippine 

 Islands in 51-423 fathoms. The depth 51 fathoms is that of Albatross station 5431, 

 an erroneous locality. In a paper on the crinoids of the British Museum published in 

 1913 I gave notes on Carpenter's two original specimens which I had examined in 

 London in 1910. 



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

 1918 Glyptometra tuberosa was listed and the synonymy given. In the key to the genera 

 of the family Charitometridac the bathymetrical range of the genus Glyptometra was 

 given as 92-761 meters, the first figure, as in 1912, referring to Albatross station 5431. 



In 1924 Prof. Torsten Gislen mentioned the pentacrinoid of Glyptometra tuberosa 

 described by Carpenter in 1888, in 1927 he compared this species with Perissometra 

 aranea, and in 1928 he published a note on the specimens in the British Museum. 



In 1929 I recorded a specimen from between Leyte and Cebu in 154 fathoms, 

 and in 1934 Dr. Gislen discussed the arm branching of the species. 



