MONOGRAPH OF THE EXISTING CRIXOIDS. 29 



Comatula as he restricted it, a character which we now know to be of very uncertain 



value. 



In the " Inconographic <lu Kegnc Animal" published by Guerin-Me'nevillc 

 during the years from 1828 to 1837 there are two figures supposed to represent the 

 species described as Comatula carinata from Mauritius; possibly the first (2) does 

 represent this species, though it looks more like some species of Antedon; but the 

 second (-'<M appears to be a species of Amphimetra, and agrees fairly well with A. 

 disc&idea from northern Australia and the East Indies. There is a specimen of 

 Amphimetra discoidea (labeled by P. H. Carpenter Antedon milberti var. dibra- 

 cliiiitd) iii the Pari-; Museum from which I suspect this figure was drawn. 



In the course of his studies on the cchinoderms Prof. Johannes Muller had 

 become interested in the comatulids, and in 1841 he published a paper upon the 

 group in which he described the new genus Actinometra. The type of his new 

 genus was the new species Actinometra imperialis, founded upon a magnificent speci- 

 men two feet in expanse which he had found in the Vienna Museum labeled "Coma- 

 tula Solaris." In addition to Actinometra imperialis Muller described as new the 

 following species, all of which he referred to Leach's genus Alicto: 



Alu-lo milleri (new name for Comatula fimbriata Miller, not 



Comatula fimbriata Lamarck ) Antedon bifirla. 



Alecto phiilnnfiiiini Lcptometra phalangium. 



Alecto cscltrichtit Ileliometra glacialis. 



Alecto cchinoptcra Comactinia tchinoptera. 



Alecto rosca Comatula lirarliiiilutn. 



Alecto tcsscllata imphimetra tessellata. 



Alecto polyarthra ' (Xot identifiable.) 



Alecto multifida (see below) Comaster in iillifu/n. 



Alecto savignii Hctcnmii ti-u mn-ir/nii. 



\Larn promt Ira iinlinuln. 



Alecto palmata { , 



[Lampromctra protcctus. 



Alecto parvicirra Comanthus purririrra. 



Ali rin liiiinn axis Comanthus parricirra. 



. 1 1, flo japonica Crniinnthiis japonica. 



Ali do Jliii/i ttnta Dichrometra Jtar/rllata. 



Alt i in (;>-(/" i '"''' ComastcT nov&guinex. 



A lecto flonyata Dichromi-lra j/<i</< llnl/i. 



. I In-lit litHnitli Camnnthiig bcnmlli. 



Miiller found in the literature three species which bore the name multiradiata, 

 in addition to the so-called "multiradiatas" of Leuckart, Audouin, and Schweigger, 

 which he seems to have correctly considered wrongly so called; one of these had 

 been described by Linne (Astirias iniillii'in/iiitd) and later redescribed by Retzius, 

 another had been described by Lamarck (Comatula multiradiata), while a third had 

 been described and beautifully figured by Goldfuss (Comatula inultiradiata). Both 

 Lamarck anil Goldfuss had been under the impression that the species they had in 

 hand was the one originally diagnosed by Linne. Muller took the ground that the 

 mime should hold for the species or form which was best described, and he treated 

 the Axlt rifts multirndinta of Linne and the Comatula muUlni/I'mla of Lamarck as 

 being quite unrecognizable from the published descriptions, and therefore not ten- 

 able. The Comatula nuiUJnuliata of 'Goldfuss, well described and illustrated with 



