2 Id BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



as Comatula sp.; but later, ill 1839 and 1842, he accepted Audouin's determination 

 and culled il Comatvla multiradiata. 



In 1830 M. de Blainville reproduced Savigny's figures but in some unexplained 

 way used them as illustrating Lamarck's Comatula adeonae { = Oligometrides adeonae), 

 a 10-armed species. I lis reproduction of these figures, together with his identification 

 of them, was incorporated in the Penny Encyclopedia in 1837, and in the Natural 

 History, or Second Division of the English Encyclopedia, in 1867. 



Prof. Johannes Midler was unable to identify the species figured by Savigny with 

 any form known to him, so in 1841 he proposed the new name Alecto savignii for the 

 animal represented by Savigny in figure 1 on plate 1. Miiller gave no description, 

 merely stating that it possessed 20 arms. 



Hemprich and Ehrenberg had brought back from the Red Sea a number of 

 specimens of this species, and from them Professor Leuckart took some myzostomes, 

 which he recorded in 1839 and 1842, calling the host Comatula multiradiata. His 

 record was republished by von Graff in 1877 and 1844, and by Braun in 1888. 



Midler studied the specimens that had been brought to Berlin by Hemprich and 

 Ehrenberg and in 1849 published a description of them under the name of Comatula 

 [Alecto) savignii, again referring Savigny's plate 1, figure 1. 



Departing from his usual custom of simply translating Muller's descriptions, 

 Dujardin, in Dujardin and Hup6, 18G2, drew up an original description of Comatula 

 savignyi J. Miiller, which was prepared not from any specimens but from Savigny's 

 figures as reproduced by de Blainville. Although he credited the species to Muiler, 

 the only references he gave were to Savigny's plate, to Audouin's explanation of the 

 figures on the plate, and to de Blainville's text and plate. He saw the curious error 

 that de Blainville had made and placed his Comatula adeonae without comment in the 

 synonymy of Comatula savignyi. Dujardin gave as the habitat of Comatula savignyi 

 the coasts of Egypt, which was a natural inference from the inclusion of the species 

 in Savigny's work. 



In 1S69 this species was mentioned as found in the Red Sea by Professor von 

 Martens in his account of the animals collected on Count von der Decken's journey 

 in East Africa. 



Dr. P. H. Carpenter in 1879 included Antedon savignyi in the list of species that 

 he was able definitely to place in the genus Antedon as he understood it. 



It was again mentioned as occurring in the Red Sea by Prof. Hubert Ludwig in 



I SMI. 



In October 1882, Prof. F. Jeffrey Bell proposed a specific formula for this species, 

 which was emended by Dr. P. H. Carpenter in April of the following year. 



In his discussion of Antedon adeonae in the Alert report published in 1884 Prof. 

 F. Jeffrey Bell wrote: 



There is a curious error in connexion with this species which does not seem to have been noticed. 

 Lamarck described it as "C. radiis pinnatis denis &c.:" de Blainville, while quoting Lamarck, refers 

 also to his own figures in his 'Atlas' (pi. xxvi) ; in this reference he is followed by J. Muiler and by 

 the editors of the second edition of Lamarck. The figures, however, when referred to are seen to 

 be those of a species with twenty arms and with cirri nearer thirty than twenty. It is not perhaps 

 necessary at this distance of time to waste time in inquiring what species it is that de Blainville 

 has there figured. 



