32 BULLETIN 82, UNITED STATES NATIONAL MUSEUM. 



It will be noticed that there is no mention in this list of the Asterias tenella of 

 Retzius, the Alectro dcntata of Say, or of the Alecto glacialis of Leach. 



While working up the natural history of Chile for inclusion in his monographic 

 account of that country, Gay found in the Paris Museum a number of comatulids 

 which had been labeled by Valenciennes Comatula picta, and which were said to 

 have been obtained in Chile. In the eighth volume of his work (1854) Gay described 

 these under Valenciennes' name of Comatula picta; but he makes no further men- 

 tion of their occurrence in that country. The specimens belong to the common 

 Brazilian species of Tropiometra, and could not have come from Chile ; they prob- 

 ably came to France on a ship from Chile which had touched at some Brazilian port 

 on the way. 



In 1857 Barrett discovered in the Sound of Skye a curious species which he 

 named Comatula woodwardii (Leptometra celtica), but which he renamed (jointly 

 with McAnclrew) in the following year Comatula celtica, to avoid conflict with a 

 previously described fossil Comatula woodwardii. 



Dujardin and Hupe in 1862 published their great work on the so-called zoo- 

 phytes, the former being responsible for that- part which dealt with the comatulids. 

 These authors followed Muller closely, but corrected many of his mistakes, while 

 making some additional errors of their own. They recognized three genera of 

 recent comatulids which they called Actinometra, Comatula, and Comaster, the 

 last being based upon Goldfuss', Comatula multiradiata and used, therefore, in the 

 same sense in which it was understood by Muller. Actinometra as described by 

 them has a central anus, the brachial ambulacra leading to a horseshoe-shaped 

 peripheral furrow; Comatula included the forms in which the mouth is central and 

 forms the converging point of five equal radiating ambulacra on the disk. Actino- 

 metra irnperialis, which Muller himself had shown to be but a synonym of Comatula 

 Solaris, they reinstated as a A'alid species, even going so far as to consider it generically 

 different from C. Solaris. 



TheLr arrangement of the various species is: 



Comatula mediterranea Antfdon mediterranea. 



Comatula phalangium Leptometra phalangium. 



Comatula petasus Antfdon petasus. 



Comatula sarsii Ilathrometra sarsii. 



Comatula eschrichtii Heliometra gladalis. 



Comatula carinata Tropiomelra carinata. 



Comatula adeonx Oligometrides adeonse. 



Comatula trichoptera Comanthus trichoptera. 



Comatula reynaudi Hcttrometra reynaudii. 



Comatula Solaris Comatula Solaris. 



Comatula brachiolata C'omatulella brachiolata. 



Comatula echinoptera Comactinia echinoptera. 



Comatula rosea Comatulella brachiolata. 



Comatula tessellata Atnphimetra (?) tessellata. 



Comatula purpurea Comatula purpurea. 



Comatula philibcrti Amphimetra philiberti. 



Comatula milbcrli Amphimetra milberti. 



Comatula jacquinoti Amphimetra jacquinoli. 



