Excerpt from Studies of the Development and Larval Forms of Echinoderms
The author of the present work has for a long time realized that the study of the larvae would have an important bearing also on the classi fication of the adult forms, and it was, indeed, mainlv from this point of view that the investigations recorded in this work were undertaken.
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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
"Sinopsis" puede pertenecer a otra edición de este libro.
Excerpt from Studies of the Development and Larval Forms of Echinoderms
The author of the present work has for a long time realized that the study of the larvae would have an important bearing also on the classi fication of the adult forms, and it was, indeed, mainlv from this point of view that the investigations recorded in this work were undertaken.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Excerpt from Studies of the Development and Larval Forms of Echinoderms
Ever since Joh. Müller about seventy years ago published his celebrated studies on the Echinoderm larvæ, showing such unexpected richness of forms to exist among them and making known in the main features their wonderful metamorphosis, those larvæ have been among the favourite objects of zoological research. The study of the larval forms themselves, the differentiation of the original simple larval type into the many highly specialized or even quite extreme forms (e.g. Auricularia nudibranchiata or Echinopluteus transversus), tracing the morphological transformation of the different parts of the larval body (so masterly done already by Joh. Müller) or of the supporting skeleton makes in itself quite a fascinating subject. The metamorphosis of the bilateral, free-swimming larva into the radial, more or less sedentary, adult - a metamorphosis no less striking than that of a caterpillar into a butterfly (indeed, the Kchinoderm metamorphosis has been characterized as the most remarkable ontogenetic change in the animal kingdom) - presents a number of interesting problems. Then the Echinoderm larvæ have proved to be exceptionally good objects for experimental embryological studies, for experimental hybridization and for heredity studies. No wonder that an extensive litterature has arisen on forms presenting so many points of interest.
The significance of the pelagic larvæ for the study of geographical distribution was pointed out in the author's work ..Die Echinodermenlarven der Plankton-Expedition" (1898. p. 108), and this was in the author's mind when, speaking of the relation between the East African and the West Indian Echinoid fauna), the desirability of studying the development of the forms common to both regions, as, upon the whole, that of tropical Echinoderms in general, was emphasized, this being almost a terra incognita, ,,an ample field of most promising research."
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Librería: Forgotten Books, London, Reino Unido
Paperback. Condición: New. Print on Demand. This book presents groundbreaking insights into the development and larval forms of echinoderms, a group of marine invertebrates that includes sea urchins, starfish, and sea cucumbers. The author, an experienced researcher, undertook extensive fieldwork to gather data on these creatures, resulting in a comprehensive analysis of their biology, morphology, phylogeny, and geographical distribution. Through meticulous observations and experiments, the author sheds light on the intricate metamorphosis and remarkable adaptability of echinoderms. The work challenges some established classifications and highlights the significance of larval forms in understanding their evolutionary relationships. This accessible and captivating book provides a valuable resource for marine biologists, zoologists, and anyone interested in the captivating world of echinoderms. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781331926467_0
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Librería: PBShop.store US, Wood Dale, IL, Estados Unidos de America
PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9781331926467
Cantidad disponible: 15 disponibles
Librería: PBShop.store UK, Fairford, GLOS, Reino Unido
PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9781331926467
Cantidad disponible: 15 disponibles