A MONOGRAPH OF THE EXISTING CRINOIDS 



357 



In 1888 Carpenter published a very exhaustive account of Antedon milberti, 

 recording under that name one specimen from Challenger station 203 and two speci- 

 mens from Challenger station 212. In his list of localities other than those of the 

 Challenger, Padau ("Padan") Bay and North Borneo refer to this species, the others 

 to Amphimetra discoidea or to A. tessellata. Carpenter had examined the two speci- 

 mens upon which Grube had based his Comatula laevissima, and he found them to 

 represent quite different forms. One of the specimens he identified as milberti, and 

 the other he proposed to describe more fully at a future time. Since one of the speci- 

 mens was referable to milberti as he understood it, he said that Grube's name laevissima 

 will therefore apply only to the other specimen. In his key to the species of the 

 Milberti group milberti and laevissima are paired. He gave milberti as having the 

 radials and lower brachials tubercular and the lower pinnules rounded, while in 

 laevissima the radials and lower brachials are smooth and the lower pinnules are 

 carinate. According to Carpenter's indications, taken in connection with Grube's 

 original description, Comatula laevissima is undoubtedly a species of Decametra (see 

 Part 4b). 



In 1889 Carpenter recorded a dozen examples of Antedon milberti from King 

 Island in the Mergui Archipelago, which, judged from his figures, are undoubtedly 

 this species. These are the specimens from which came the myzostomes sent to 

 Professor von Graff and which were mentioned by Professor Bell in 1888. 



Dr. Clemens Hartlaub in 1891 said that he had examined two specimens of 

 Antedon milberti from Atjeh in the Leyden Museum and gave notes on them. One 

 of these was subsequently transferred to the Gottingen Museum. 



In 1895 Prof. Rene Koehler recorded and gave notes upon two specimens identi- 

 fied as Antedon milberti belonging to the University of St. Petersburg (Leningrad) 

 and collected on the island of Biliton, north of Java, by M. Korotnev in 1885. 



Specimens of this species were recorded from the Maldives by Prof. F. Jeffrey 

 Bell in 1902 under the name of Antedon laevissima. 



Herbert Clifton Chadwick hi 1904 recorded a small specimen of Antedon milberti 

 from Ceylon Pearl Oyster Fisheries station I, and two full-grown ones from station 



LVII. 



This species was first differentiated from "milberti" and formally described, 

 under the name of Himerometra molleri, by me in 1908. The description was based 

 upon a specimen in the Copenhagen Museum from the "Indian Ocean" that had 

 been labeled Alecto molleri by Prof. Chr. F. Lutken. At the same time a second 

 specimen from the Straits of Malacca was recorded. 



In my paper on the crinoids of the Copenhagen Museum published in 1909, this 

 species, under the name of Amphimetra molleri, was recorded from the "Indian Ocean" 

 (the type specimen), Singapore, and the Straits of Malacca. Notes were given on the 

 specimens from the last two localities, and the species was compared with A. milberti 

 (in reality A. spectabilis). 



In 1911 in a paper on the crinoids of the Leyden Museum I gave notes on the 

 specimen from Atjeh which I examined in that museum. 



In a memoir on the criuoids of the Indian Ocean published in 1912 I gave the 

 synonymy of this species and a list of the localities from which it is known. Besides 

 the localities given in the paper on the crinoids of the Copenhagen Museum there are 



