Download or read book The Sponges Collected in Porto Rico in 1899 by the U S Fish Commission Steamer Fish Hawk written by Henry Van Peters Wilson and published by . This book was released on 1902 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Sponges Collected in Porto Rico in 1899 by the U S Fish Commission Steamer Fish Hawk written by Henry Van Peters Wilson and published by . This book was released on 1901 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the Department of Commerce Available for Distribution written by United States. Dept. of Commerce and published by . This book was released on 1914 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the Department of Commerce and Labor Available for Distribution written by United States. Dept. of Commerce and Labor and published by . This book was released on 1912 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the Department of Commerce Available for Distribution written by and published by . This book was released on 1913 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the Bureau of Fisheries Available for Distribution written by United States. Bureau of Fisheries and published by . This book was released on 1911 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book United States Government Publications a Monthly Catalog written by United States. Superintendent of Documents and published by . This book was released on 1901 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.

Download or read book Systema Porifera written by John N.A. Hooper and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1779 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research whilst compiling this book has uncovered a fauna about twice the size as that previously published in the literature and consequently Systema Porifera revises and stabilizes the systematics of the phylum to accommodate this new knowledge in a contemporary framework. Practical tools (key illustrations, descriptions of character) are provided to facilitate the assignment of approximately 680 extant and 100 fossil genera. Systema Porifera is unique making sponge taxonomy widely available at the practical level of classification (genera, families, order). It is a taxonomic revision of sponges and spongiomorphis (such as sphinctozoans and archaeocyathans) based on re-evaluation of type materials and evidence. It is also a practical guide to sponge identification providing descriptions and illustrations of characters and interpretation of their importance to systematics. Systema Porifera addresses many long standing nomenclatural problems and provides a sound baseline for future debate on sponges and their place in time and space. Systema Porifera describes 3 classes, 7 subclasses, 24 orders, 127 families and 682 valid genera of extant sponges (with over 1600 nominal generic names and an additional 500 invalid names treated). Treatment of the fossil fauna is less comprehensive or critical, although 6 classes, 30 orders, 245 families and 998 fossil genera are mentioned. Keys to all recent and many fossil taxa are provided.

Download or read book Catalogue of United States Public Documents written by and published by . This book was released on 1902 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the Public Printer written by United States. Government Printing Office and published by . This book was released on 1911 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Shallow water sponges of the western Bahamas written by F. Wiedenmayer and published by Birkhäuser. This book was released on 2013-11-21 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the period the sponges described herein were which were used only sporadically in the past and were collected (1963-7), the author was a Research Associate regarded as of marginal value until two decades ago, at the Department of Geology, University of Illinois, paleontology and embryology, are now receiving great participating in a research project on carbonate attention. They have already brought drastic revisions to sediments of the Bimini area, directed by Prof. William systematics, with regard to redefinition and classification W. Hay (Department of Geology, University of Illinois. of higher taxa. Other approaches have recently emerged utilizing biochemistry, histology, cytology, autecology, now at the Rosenstiel School of Marine and Atmospheric and zoogeography, and these promise significant ad Science, University of Miami) and supported by the National Science Foundation. The objective of this pro vance in the delimitation and classification oflower taxa. ject was a study of the relationship between the carbo The rapidly changing state of sponge taxonomy is reflect nate sediments of the Bimini area and the benthonic ed in the paucity of definitive (i. e. widely accepted) revisions of genera and families. The lack of stability and fauna and flora, especially with regard to skeletal ele ments contributed to the sediment.

Download or read book Investigations of the Aquatic Resources and Fisheries of Porto Rico by the United States Fish Commission Steamer Fish Hawk in 1899 written by United States. Bureau of Fisheries and published by . This book was released on 1902 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the United States Commissioner of Fisheries written by United States. Bureau of Fisheries and published by . This book was released on 1902 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the United States Commissioner of Fisheries for the Fiscal Year with Appendixes written by United States. Bureau of Fisheries and published by . This book was released on 1921 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the Bureau of Fisheries written by and published by . This book was released on 1902 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Document written by United States. Bureau of Fisheries and published by . This book was released on 1906 with total page 1208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the Superintendent of Documents written by United States. Superintendent of Documents and published by . This book was released on 1909 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt: