A MONOGRAPH OF THE EXISTING CRINOIDS 107 



which unfortunately fades strongly in alcohol. He republished the original description, 

 adding nothing new, and figured a cirrus and a portion of an arm with four pinnules 

 In a discussion of the adambulacral plates and other detads of the pinnules of 

 north Atlantic comatulids published in 1904 Dr. James A. Grieg mentioned that he 

 had had no opportunity to examine the pinnules of Antedon flava, but presumably they 

 are quite different from those of the other species since it belongs to the Granuhfera 



group 



In a paper published on April 11, 1908, and in another published on May 4 I 

 assigned Antedon flava to the genus Thalassometra, and in two papers published later 

 in the same year Thalassometra flava was given as a characteristic oceanic species In 

 my review of the family Thalassometridae published in 1909 Antedon flava was listed 

 among the species I was unable to place satisfactorily. 



In 1910 Profs Rene Koehler and Clement Vaney recorded without comment two 

 specimens of Antedon (Crotalometra) flava from lat. 25°39' N., long 18°22' W., in 882 

 meters, that had been dredged by the French steamer Talisman. In my paper on he 

 crinoids of the coasts of Africa published in 1911 I listed Crotalometra flava, giving the 

 svnonymy, the African locality, and the range. . 



In his memoir on the comatulids of the Blake expedition published in 1912 Dr. 

 Clemens Hartlaub compared this species in detail with C. porrecta, coming to the con- 

 ciusTon that the differences between them scarcely sufficed for the establishment of a 



new specie^ ^ ^ ^ Morgan recorded Antedon flava from Huxley station 13, his 

 sDecimens having been identified by Professor Koehler. 



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

 1918 I included flava in my key to the species of the genus Crotalometra and gave the 

 synonymy and range, and in my memoir on the crinoids of the Ingolj expedition 

 Crotalometra ftava was listed, with the range. 



^11927 Professor Koehler included an account of Crotalometra flava in his memoir 

 on the echinoderms of the European seas, and Dr. Theodor Mortensen mentioned ,t, 

 with its range, in his handbook of the echinoderms of the British Isles. 



Genus AGLAOMETRA A. H. Clark 

 Antedon (part) P. H. C.kpentbb, Challenger Reports, Zool., vol. 11, pt. 32, 1884, p. 57, and following 



rSa^Zra (part) A. H. Cu M , Smithsonian Misc. Coll vo, « , pt. 3 1007, p. 360. 

 Crotalometra (part) A. H. Ci*«, P-c. U. S. Nat. Mus vot 86 1900 p. 404 ^ 



A9la0m etra AH. ^— ^ Ss^ri n^e,^— J* ana A. incerta^ 

 type mentioned; 2 species cited unaer ™n>g the included 



new ser., vol. 45, No. 11, 1934, p. 18. 

 Diadem* -A genus of Thalassometridae in which the arms are dorsally rounded 



90-150 mm. long and the cirri 45-90 mm. long with 59-70 segments. 



