The Cidaridae is a book written by Hubert Lyman Clark and published in 1907. The book is a comprehensive study of the Cidaridae family, which includes sea urchins. Clark's work covers the taxonomy, morphology, and distribution of the Cidaridae, as well as their ecology and behavior. The book is divided into several chapters, each of which focuses on a different aspect of the Cidaridae. The first chapter provides an overview of the family, while subsequent...