The Amphioxus: And Its Development is a scientific book written by Berthold Hatschek and originally published in 1893. The book is focused on the study of Amphioxus, a small, fish-like marine animal that belongs to the phylum Chordata. The author describes the anatomy and physiology of Amphioxus in detail, including its nervous system, digestive system, and reproductive system. The book also covers the development of Amphioxus from its embryonic stages to its mature form. The author uses detailed illustrations and diagrams to explain the complex processes involved in the development of this animal. The book is a valuable resource for those interested in the study of marine biology and the evolution of chordates.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.