A MONOGRAPH OF THE EXISTING CRINOIDS 



467 



of Dichrometra, reginae (paired with D. gyges} was distinguished by having P 2 longer 

 than P 3 , articulata having P 2 and P 3 about equal in length and 35-40 cirrus segments 

 of wliich the outer are spinj^. Notes on the type specimen of Antedon reginae were 

 given ; it was said that this species is very close to articulata and that further in- 

 vestigation may show that the two are really identical. 



In my memoir on the crinoids of the Hamburg Southwest Australian Expedition 

 published in 1911 the ranges of Dichrometra reginae and of D. articulata are discussed. 



In the memoir on the crinoids of the Indian Ocean published in 1912 I listed 

 Dichrometra reginae on the basis of the type specimen and gave D. articulata from 

 the Moluccas and Port Molle, Queensland, adding the redescription of the type 

 (translated into English) published in 1911. Under Dichrometra tenera there was 

 given as a synonym Antedon articulata Brit. Mus., MS., a name taken from a speci- 

 men of tenera (=gyges) in the British Museum collection. 



In my revision of the family Mariametridae published in 1913 I listed articulata 

 under the new genus Liparometra, and through an error listed reginae under the new 

 genus Lamprometra. 



In a supplement to my memoir on the crinoids of the Hamburg Southwest 

 Australian Expedition published in 1913 I said, under Dichrometra gyges, that "the 

 three supposed species Dichrometra tenera (Hartl.), D. gyges (Bell) and D. reginae 

 (Bell) are in reality the same form," repeating the error made in my revision of the 

 family Mariametridae. 



In a paper on the crinoids of the British Museum published in 1913 I definitely 

 placed Bell's Antedon reginae as a synonym under Liparometra articulata and gave 

 notes on the type specimen. 



In my memoir on the unstalked crinoids of the Siboga Expedition published in 

 1918 I placed Antedon reginae as a synonym under Liparometra articulata and recorded 

 two specimens of the species from station 49a. I remarked that it is quite possible 

 that L. regalis is really the young of this species. This remark is quite out of place. 

 I intended to say that it is quite possible that L. regalis is the young of L. grandis 

 (see below). 



In 1936 Dr. T. Gislen recorded and gave notes on a specimen from Annam identi- 

 fied as Lamprometra moorei and discussed the relationships among Lamprometra 

 moorei, L. palmata, Liparometra articulata, and Dichrometra flagellata. 



LIPAROMETRA GRANDIS (A. H. Clark) 



PLATE 52, FIGURES 238, 239 



Himerometra grandis A. H. CLARK, Proc. Biol. Soc. Washington, vol. 21, 1908, p. 222 (description; 

 Hirado Straits, 40 fathoms). 



Dichrometra grandis A. H. CLARK, Proc. Biol. Soc. Washington, vol. 22, 1909, p. 13 (listed); Vid. 

 Medd. Naturh. Foren. K0benhavn, 1909, p. 172 (locality); Crinoids of the Indian Ocean, 1912, 

 p. 150 (synonymy; locality). 



Liparometra grandis A. H. CLARK, Proc. Biol. Soc. Washington, vol. 26, 1913, p. 143 (listed); Smith- 

 sonian Misc. Coll., vol. 61, No. 15, 1913, p. 31 (comparison with type of L. regalis); Journ. 

 Washington Acad. Sci., vol. 5, No. 6, 1915, p. 214 (southern Japanese species; range and its 

 significance); Unstalked crinoids of the Siboga Exped., 1918, p. 103 (in key; range). GISLEN, 

 Nova Acta Reg. Soc. Sci. Upsaliensis, ser. 4, vol. 5, No. 6, 1922, p. 74 (Bock's stations 39, 47; 

 notes), p. 182, figs. 85, 86, p. 112; Zool. Bidrag Uppsala, vol. 9, 1924, p. 41 (details of arms), 

 p. 44 (reversion), p. 78 (syzygies), pp. 84, 283; Vid. Medd. Dansk Naturh. Foren., vol. 82, 1927, 



