I remember reading a story back in the 1960s where it was said that all faster than light starships carried only a single man and were shaped like starfishes - not necessarily with five arms each. Most species of starfish have five arms but some have up to fifty, so the starfish starships could have, for example, twelve pointed arm-like extensions. They were fast enough to travel to distant galaxies, if I remember correctly.
Can anyone identify this story?
I think that I remember which anthology I read the short story in: the two-volume A Treasury of Great science Fiction (1959) Edited by Anthony Boucher.
Stories that I can be eliminate include the four novels: Re-Birth (1955) by John Wyndham, The Weapon Shops of Isher (1951) by A.E. Van Vogt, Brain wave (1954) by Poul Anderson, and The Stars My Destination (1956) by Alfred bester, and shorter stories like "Waldo" by Robert A. Heinlein, "The Martian Crown Jewels" by Poul Anderson, "Bullard Reflects" by Malcolm Jameson, "Lost Art" George O. Smith, and "The Man Who Sold The Moon" by Robert A. Heinlein.
If I correctly remember the anthology where I read it, any of the other stories listed could be the story I remember.