168 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



(accepted in the same sense as in the paper just cited) exhibits more individual than 

 Heliometra does generic variation. 



Dr. Hubert Lyman Clark hi April 1908 recorded a specimen of Cyllometra manca 

 from the Uraga Channel, Gulf of Tokyo, in 20-30 fathoms, that he had found in a 

 lot of 153 specimens of echinoderms purchased by the Museum of Comparative 

 Zoology from Alan Owston of Yokohama. 



In a paper published on May 14, 1908, 1 briefly diagnosed Cyllometra albopurpurea, 

 the type specimen being from Albatross station 5095. The diagnosis was in the form 

 of a comparison with C. manca and C. (Decametra) tigrina. My conception of C. 

 manca was based upon as yet unrecorded specimens at hand which had shortly before 

 been collected by the Albatross at station 5213 in the Philippines. Because of their 

 elongated proximal cirrus segments these specimens should have been referred to 

 C. disciformis, if this formes to be recognized. In a paper published on July 15, 1908, 

 I recorded 30 specimens of Cyllometra albopurpurea from 14 localities in Sagami Bay 

 and Tokyo Gulf where they had been collected by Alan Owston in his yacht the 

 Golden Hind. Mr. Owston's collection of crinoids had been purchased in 1907 by 

 Frank Springer and deposited in the National Museum. In a paper published on 

 December 10, 1908, 1 described Cyllometra anomala from a specimen in the Copenhagen 

 Museum from southern Japan which proved to be simply an abnormal individual 

 of the form described earlier in the same year as Cyllometra albopurpurea. In a 

 preliminary notice of a collection of crinoids made by the Albatross in the Philippines 

 published on December 23, 1908, I recorded Cyllometra manca from station 5213 

 without comment. If disciformis is to be considered as separate from manca, these 

 specimens should be considered as representing disciformis and not manca. In a 

 second preliminary paper on the crinoids collected by the Albatross in the Philippine 

 Islands published on May 13, 1909, I recorded, without comment, Cyllometra manca 

 from stations 5154 and 5212. These specimens should have been referred to disci- 

 formis. On June 25, 1909, 1 described Cyllometra soluta from specimens that had been 

 collected by the Eoyal Indian Marine Surveying steamer Investigator in the Straits 

 of Ormuz in 48-49 fathoms. In a paper on the crinoids of the Copenhagen Museum 

 published later in 1909, I recorded and gave notes upon 38 specimens of Cyllometra 

 albopurpurea that had been collected by Captains Suensson and Schonau at eight 

 localities off southwestern Japan, and also listed Cyllometra anomala. In a third 

 paper on crinoids collected by the Albatross in the Philippines, published on February 

 15, 1911, I recorded and gave notes on three specimens of Cyllometra manca from sta- 

 tion 5356, and mentioned one from station 5369. As in the case of the Philippine 

 specimens previously recorded these should have been referred to disciformis. 



In April 1912, Dr. Clemens Hartlaub listed Antedon manca, A. albopurpurea, 

 and A. anomala among the ten comatulids lacking P a . He said that I had quite 

 properly segregated these into a group for which I used the generic name Cyllometra. 

 But he preferred to use Carpenter's systematic arrangement and therefore referred 

 them to the genus Antedon. 



In the description of Cyllometra gracilis published in July 1912, I compared it 

 with C. manca. Here manca refers to the true manca and not to disciformis as hi 

 the papers on the crinoids collected by the Albatross in the Philippines. 



In a paper on the crinoids in the Berlin Museum published on November 20, 



