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 sion); vol. 34, 1908, p. 211 (referred to Antedonidae, restricted); vol. 35, 1908, p. 119 (arm struc- 

 ture); Proc. Biol. Soc. Washington, vol. 21, 1908, p. 125 (unsatisfactory status; restricted by 

 removal of 11 genera herein described), p. 136 (placed in Family Antedonidae, restricted), p. 

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1909, p. 586 (impossibility of finding the solution of the arm structure in the ontogeny), p. 587 

 (only differs from the Pentacrinidae in the fact that in the latter the short discoidal segments 

 at the summit of the column are greatly multiplied); Vid. Medd. Nat. Foren. K0benhavn, 1909, 

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