Complex sentence: He was a member of the American Society of Ichthyologists (1935) and Herpetologists elected him as its first honorary member, and in 1937, Belgium conferred him the Order of Léopold, the highest honor awarded to a civilian.
Split into simpler sentences: He was a member of the American Society of Ichthyologists and Herpetologists and was elected its first honorary member in 1935. In 1937, Belgium conferred him the Order of Léopold, the highest honor awarded to a civilian.