Found a pretty cool article on this subject -<quoted text>
Darwin's books were banned by Hitler & Co. Fact.
"In Ian Kershaw's biography of Hitler, Professor Kershaw (who has no axe to grind on this topic, so far as I know) repeatedly attributes a belief or world view which he terms 'Social Darwinism' to the National Socialist leader".
"I believe that this ban (mention of which, I now gather, is a stock-in-trade Darwinist response to the allegation that the Nazis were influenced and inspired by evolutionary theory) was not caused by any NSDAP objection to the theory of evolution, but may have more to do with Hitler's specific disagreement with Haeckel's supporters and disciples, the Monists, who were very far from being Nazis.
So far as I know, the Monist League, which was made up of Haeckel's disciples, was shut down in 1933 by the Nazis, so publications linked with it would have been banned at the same time. Richard Weikart, in his book exploring the links between Darwinism and National Socialist ideology ('From Darwin to Hitler' p.70) notes:’The Nazi suppression of the Monist League was not a function of a fundamental change in the Monist League's orientation during the Weimar period, as [Daniel] Gasman has argued, but rather reflected significant differences between Haeckel and Hitler. Haeckel and the Monist League promoted many social reforms that were anathema to Hitler, such as homosexual rights, feminism, and pacifism.’
So he was at odd's with Haeckel(the promoter of the false concept of fish to human evolution occuring during pregnancy)Not Darwin.