38 BULLETIN 82, UNITED STATES NATIONAL MUSEUM, 



(Specimena in the Hambui^ Museum.) 



ITropiometra andouini. 

 Tropioinelra encrinvis. 

 Troinomctra mnnata. 

 Tropiomelra picta. 



Antedon Uevipinna, sp. nov Lampromelra proteclm. 



Antt-don xquipinna, sp. nov Lampromelra prolcctus. 



Antedon imparipinna, ep. nov Lampromelra proleclus. 



Antedon variipinna, sp. nov Amphimetra variipinna. 



Antedon crenulata, sp. nov Amphimclra crenulata. 



Antedon acuticirra, sp. nov Craspedometra acuticirra. 



Antedon ludovici, sp. nov Craspedometra acuticirra. 



Antedon bipartipinna, sp. nov Craspedometra anUicirra. 



(Antedon australis, nom. nov.) Craspedometra acuticirra. 



Actinomelra Solaris Comatula Solaris. 



Actinomelra robusta, sp. nov Comatula Solaris. 



Aclinomelra parvicirra Comanthus parvicirra. 



, . , . ,. {Capillasler scntosa. 



Actinomelra muUiraaiata i^ .,, , 7, • j- , 



[Capillasler multiradiata. 



Actinomelra grandicalyx, sp. nov Comantheria grandicalyx. 



Actinomelra meyeri, sp. nov Comanthus annulata. 



Actinomelra bennelli Comanthus bennetli. 



In the same year Prof. F. Jeffrey Bell invented a very ingenious, but unfortu- 

 nately impracticable, scheme for the expression of the specific characters of the 

 comatulids by means of so-called "specific formulae," and gave a list of all the 

 species knowTi to him with their specific formulse attached; in this list he inserted 

 the names of some undescribed species which had been obtained by the Alert in 

 Australia, and he added an appendix describing Actinomftra annulata {Comantlius 

 annulata) from Cape York. Later in the same year he very briefly diagnosed a 

 new form from the Straits of Magellan, Antedon magellanka {Florometra mageU- 

 anica), treating it as a variety of the arctic Ileliometra ghcialis. 



It was in 1882 also that Greeff reported the occurrence at the island of Rolas 

 in the Gulf of Guinea, near Sao Thom6, of a comatulid whicli he called Antedon rosor 

 cca, but which is probably the same as the species afterwards named by Ilartlaub, 

 from specimens obtained on the Ivory Coast, Antedon Tiupferi. This curious 

 species is the west African representative of the Brazilian Antedon dubenii and of 

 the European Antedon bifida. 



Early in the following year Carpenter reviewed Bell's system of formulation, 

 pointed out munerous erroi-s, and gave a revised list of all the species which he 

 could deterniuic; and Prof. Edmond Perrier diagnosed a new species of Eudiocrinus, 

 E. adanticu^ {Pentameirocrinus atlanticus). The genus Eudiocrinus was hitherto 

 supposed to be peculiar to the Pacific — being in fact named for the Pacific Ocean — 

 and the discover^' of a species in the Baj- of Biscay was an occurrence of more than 

 ordinaiy interest. 



In 1883 also Prof. Percival de Loriol iliscussed the cclunoderms of Mauritius, 

 noting the occurrence there of Tropiometra carinata. 



The report on the collections made by H. M. S. Alert in Australian and East 

 African waters was published by Bell in 1884. In it certain species, badly in need 



