
Originally published in 1889, this comprehensive study of sea urchins remains the standard reference work on the subject. Its author, Peter Martin Duncan, was a leading British naturalist of his day, and his meticulous classification system and detailed descriptions continue...

Originally published in 1889, this comprehensive study of sea urchins remains the standard reference work on the subject. Its author, Peter Martin Duncan, was a leading British naturalist of his day, and his meticulous classification system and detailed descriptions continue...