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Excerpt from Heude's Molluscan Types: Or Asian Land And Fresh Water Mollusks, Mostly From The People's Republic Of China, Described By P. M. HeudeFournier, P. 1932. Voyages et Découvertes Scientifiques des Missionnaires francais a travers le Monde (xve à xxe siècles). Encyclopédie Biologique 10: 36-45.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a ...

Excerpt from Simpson's Unionid Types and Miscellaneous Unionid Types in the National Museum of Natural HistoryOn the relationships and distribution of the North American Unionidae, with notes on the west coast species. Amer. Naturalist 21, 353-358.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten...

Excerpt from Types of Shelled Indo-Pacific Mollusks Described by William Harper Pease (1824-71), Vol. 154I find it so difficult to make out what he says that much is lost to me - this proceeds partly perhaps from a want of some teeth in front of his mouth.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. F...

Excerpt from Lea's Unionid Types, or Recent and Fossil Taxa of Unionacea and Mutelacea Introduced by Isaac Lea, Including the Location of All the Extant TypesWhile the majority of Lea's figured types are in the National Museum of Natural History, quite a number are in the Academy of Natural Sciences of Philadelphia (johnson, 1973) some are in the-british Museum (natural History) (johnson, a few are in the Museum of Comparative Zoology (johnson...

Excerpt from The Recent Mollusca of Augustus Addison Gould: Illustrations of the Types Described by Gould With a Bibliography and Catalog of His SpeciesIt is not to be inferred that the author regards the fixation of types as a final goal in systematics. Types are only taxonomic building blocks. We are still faced with the problem of taxonomic stability in mollusks, of making taxonomy 1864 sufficiently precise to serve the needs of taxonomy 19...

Excerpt from Marshall's Unionid Types, or Types of Recent and Fossil Unionacea and Mutelacea Introduced by William B. Marshall, Including a Bibliography of All His Writings on MollusksNautilus 64: 19-21. 1930. Former and present terms used in describing fresh-water mussels. Nautilus 36: 41-42.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduct...

Excerpt from Types of Shelled Indo-Pacific Mollusks Described by William Harper Pease (1824-71), Vol. 154I find it so difficult to make out what he says that much is lost to me - this proceeds partly perhaps from a want of some teeth in front of his mouth.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. F...

Excerpt from Lea's Unionid Types, or Recent and Fossil Taxa of Unionacea and Mutelacea Introduced by Isaac Lea, Including the Location of All the Extant Types Johnson, Richard I. 1956. The types of naiades (mollusca: Unionidae) in the Museum of Comparative Zoology. Bull. Mus. Comp. Zool.'11§ 102-142, pls. 1-2. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com ...

Excerpt from Heude's Molluscan Types: Or Asian Land and Fresh Water Mollusks, Mostly From the People's Republic of China, Described by P. M. Heude E. W. Roper of Boston, whose collection went to the Boston Society.of Natural History and eventually to the Museum of Comparative Zoology, and several by the British Museum (natural) History). About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more...

Excerpt from Simpson's Unionid Types and Miscellaneous Unionid Types in the National Museum of Natural History Simpson, while diligent in the locating and marking of Lea's types, was not always careful in the selection and pre servation of his own. Some are missing, and a number of them were never figured. That some were not figured is understandable, since, though they were intended, no illustrations accompanied the 1914 work. All of the mea...

Excerpt from The Recent Mollusca of Augustus Addison Gould: Illustrations of the Types Described by Gould With a Bibliography and Catalog of His SpeciesIt is not to be inferred that the author regards the fixation of types as a final goal in systematics. Types are only taxonomic building blocks. We are still faced with the problem of taxonomic stability in mollusks, of making taxonomy 1864 sufficiently precise to serve the needs of taxonomy 19...