A MONOGRAPH OF THE EXISTING CRINOIDS 413 



to London by E. P. Ramsay in connection with the Great International Fisheries 

 Exhibition held in 1883 Professor Bell listed Antedon mauonema from Port Stephens. 



In the Challenger report on the comatulids published in 1888 Carpenter discussed 

 Antedon macronema at great length. The specimens described and those which he 

 dissected were all collected by the Challenger at Port Jackson in 30-35 fathoms and 

 therefore represented australis. He cited Bell's record from Port Stephens, which 

 also refers to australis. The additional locality given by him, King Georges Sound, 

 was taken from the type specimens of macronema in the Paris A'luscum. 



In 1889 Thomas Whitelegge recorded specimens of Antedon macronema that had 

 been dredged near Sow and Pigs Reef, Port Jackson, and Dr. C. A. MacMunn described 

 the pigment from specimens collected by the Challenger in Port Jackson. 



In the summer of 1887-88 a number of crinoids were dredged in the outer stations 

 of Port Phillip, Victoria, and from outside the heads, all of them by J. Bracebridge 

 Wilson. Twenty-nine specimens were forwarded to Dr. P. H. Carpenter, who, in 

 1890, listed two of them as Antedon macronema. I have examined both of these in 

 the British Museum and found them to be specimens of Ptilometra macronema. But 

 another fine specimen from the same locality, apparently unrecorded, is Pt. australis. 

 Carpenter wrote, "I wish very much that you could get me some larvae of Antedon 

 macronema. I want very much to study the development of the calyx, which is 

 very Jurassic in its general characters." 



In 1891 Dr. Clemens Hartlaub recorded a specimen of Antedon macronema from 

 Sydney in the Gottingen Museum with an irregular distribution of the first brachial 

 syzygy. 



In 1894 Professor Bell compared Antedon macronema with his new Antedon 

 vicaria (=Mariametra vicaria, see Part 4a, p. 573), and called attention to Hartlaub's 

 note on the distribution of the first brachial syzygy. 



Dr. Wilhelm Minckert in 1905 described a case of regeneration of a postradial 

 series in Antedon macronema; his specimen undoubtedly represented Ptilometra 

 australis. 



In 1907 I listed Ptilometra macronema (J. Muller) in my new genus Ptilometra. 

 In 1908 I compared Ptilometra macronema ( = australis) with a new species described 

 under the name of Ptilometra (Pterometra) trichopoda. In 1909 I described the new 

 species Ptilometra dorcadis from Dirk Hartog Island, comparing it in detail with P. 

 macronema (= australis). I wrote that "The type of P. macronema was taken at 

 King George's Haven, in southwest Australia, while all the very numerous specimens 

 I have examined are from the eastern coast, mostly from Port Jackson or Sydney; 

 there is a possibility that the present species [dorcadis] will turn out to be the true 

 macronema, in which case the form from Sydney would require a new name and might 

 appropriately be known as Ptilometra mulleri." In my report on the crinoids of the 

 Gazelle Expedition published later in 1909 I recorded Ptilometra dorcadis and quoted 

 Professor Studer's notes on its occurrence and color. 



Dr. Hubert Lyman Clark hi 1909 recorded and gave notes on 55 specimens of 

 Ptilometra macronema that had been dredged by H. M. C. S. Thetis off southeastern 

 Australia. At the same time he described a new species that he called Himerometra 

 paedophora. 



In 1910 I suggested that the slight development of side- and covering-plates on 



