436 AUSTIN HOBART CLARK, 



pect that the specimens are really part of the collection made in that 

 country by MM. PERON and LE SUEUR in 1803. 



In his second paper upon the comatulicls, published in 1843, JOHANNES 

 MULLER described Alecto [Comatula] purpurea from a specimen which had 

 been obtained in Australia by PREISS; but it is not certain from what dis- 

 trict the specimen actually came. In 1846 the same author, having visited 

 the Paris museum, described Comatula [Ptilometra] macronema and C. [Co- 

 manthus] trichoptera, both of which had been collected in King George 

 Sound by MM. QUOY and GAIMARD on their memorable voyage of ex- 

 ploration. 



Sir RICHARD OWEN in 1862 described, but did not name, an "encri- 

 nite" which was dredged by Mr. J. S. POORE in 8 fathoms in King George 

 Sound; this appears to have been in reality an umbellularian or some 

 closely related organism, and certainly was not a crinoid. 



In the report upon the zoological collections brought together by the 

 British steamer "Alert" (1884) Prof. F. JEFFREY BELL included notices 

 of some species from the northwestern part of Australia. I reviewed all 

 of the "Alert" material while in London, and find that the collections 

 described by BELL include the following species, all from west of the Gulf 

 of Carpentaria: 



Oligometra adeonae Dundas Strait 



Amphimetra variipinna Arafnra Sea, 3236 fathoms; Dundas Strait 



Zygometra microdiscus Nicol Bay 



Comatula Solaris Arafura Sea; Dundas Strait 



Comatula pectinata Duudas Strait. 



In 1891 Dr. CLEMENS HARTLAUB described a specimen supposedly 

 of Actinometra [Comatulella] brachiolata which he studied in the Leyden 

 Museum ; while at Leyden I examined this specimen and found it to be 

 an individual of the broad armed form of Comatula pectinata, entirely dif- 

 ferent from Comatulella brachiolata. It was a very natural mistake for 

 HARTLAUB to make, however, for none of the descriptions of the latter 

 available gave any but a very hazy idea of the real differential features. 



In 1894 Prof. BELL published a list of the echinoderms of north- 

 western Australia. No definite localities were given, but he states that 

 "the chief localities are Holothuria Bank, Magnetic Shoal, Cossack Island, 

 and Baudin Island (14 08' S. lat., 125 36' E. long.)". The depth alone 

 is recorded with the various species. As determined by myself from an 

 examination of his specimens in London the species are: 

 Amphimetra discoidea 8 15 fathoms 

 Oligometra Carpenteri 8 15, and 24 39 fathoms 

 Amphimetra variipinna 9 38 fathoms 



