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The Comparative Embryology of Sponges

By: Alexander V Ereskovsky(Author)

329 pages, colour plates, illustrations, tables


Paperback | Oct 2014 | #221945 | ISBN-13: 9789400791541
Availability: Usually dispatched within 1 week Details
NHBS Price: £129.99 $170/€145 approx
Hardback | Mar 2010 | #185117 | ISBN-13: 9789048185740
Availability: Usually dispatched within 1 week Details
NHBS Price: £159.99 $209/€178 approx

About this book

One of the major questions in the evolution of animals is the transition from unicellular to multicellular organization, which resulted in the emergence of Metazoa through a hypothetical Urmetazoa. The Comparative Embryology of Sponges contains abundant original and literary data on comparative embryology and morphology of the Porifera (Sponges), a group of 'lower Metazoa'. On the basis of this material, original typization of the development of Sponges is given and the problems concerning origin and evolution of Porifera and their ontogenesis are discussed. A morphogenetic interpretation of the body plan development during embryogenesis, metamorphosis and asexual reproduction in Sponges is proposed. Special attention is given to the analysis of characteristic features of the ontogenesis in Porifera.

The Comparative Embryology of Sponges pursues three primary goals: 1) generalization of all existing information on individual development of sponges, its classification and a statement according to taxonomical structure of Porifera; 2) revealing of heterogeneity of morphogenesis and peculiarities of ontogeneses in various clades of Porifera, and also their correlations with the organization, both adult sponges, and their larvae; 3) revealing homology of morphogeneses in both Porifera and Eumetazoa, testifying to the general evolutionary roots of multicellular animals, and peculiar features of sponges' morphogeneses and ontogenesis.

The Comparative Embryology of Sponges will be of interest to embryologists, zoologists, morphologists and researchers in evolutionary biology.



1. Development of Sponges from the Class Calcarea Bowerbank, 1864
2. Development of Sponges from the Class Hexactinellida Schmidt, 1870
3. Development of sponges from the class Demospongiae Sollas, 1885
4. Development of Homoscleromorpha; order Homosclerophorida Dendy, 1905
5. Typization of sponge development and its significance for phylogeny
6. Comparative analysis of individual development in sponges
7. Evolution and individual development of sponges: regularities and directions
8. In place of conclusion: Bauplan and phylotypic stage in Porifera

Literature references
Figures legends
Taxonomic Index

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