The Cambridge natural history, Vol. 07 (of 10)

This volume opens a comprehensive survey of the lesser‑known branches of the animal kingdom, beginning with the curious hemichordates that bridge the gap between invertebrates and vertebrates. The contributors sketch the anatomy and life cycles of these marine “acorn‑worms,” offering clear illustrations that help listeners visualize their delicate structures.

The book then turns to the vibrant world of tunicates and lancelets, detailing their simple yet fascinating morphologies and ecological roles. Detailed sections on ascidians and amphioxus are followed by an extensive treatment of fishes, from primitive jawless species to the richly varied teleosts that dominate today’s oceans. Throughout, the authors balance rigorous taxonomy with engaging narratives, making the complex history of chordate evolution accessible to anyone with a curiosity about the sea’s hidden inhabitants.