The Dispersal of Shells: An Inquiry Into the Means of Dispersal Possessed by Fresh-water and Land MolluscaK. Paul, Trench, Trübner & Company, Limited, 1893 - 291 pagini |
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Pagina vi
... occurred during later geological times , and taking into account the known distribution of the several groups at remote epochs as proved by the discovery of fossils in regions far removed from the lands now in- vi PREFACE .
... occurred during later geological times , and taking into account the known distribution of the several groups at remote epochs as proved by the discovery of fossils in regions far removed from the lands now in- vi PREFACE .
Pagina vii
... occur- rences as the occasional attachment of a living shell to a beetle's leg , or the conveyance of seeds in the mud adhering to a bird's foot , that many remote islands have become stocked with life , and the range of species ...
... occur- rences as the occasional attachment of a living shell to a beetle's leg , or the conveyance of seeds in the mud adhering to a bird's foot , that many remote islands have become stocked with life , and the range of species ...
Pagina 2
... occur at isolated points in remote parts of the world . Highly effectual means of dispersal of some kind or other must certainly have been in operation , for it is clear that the distribution , at least of many groups , cannot have ...
... occur at isolated points in remote parts of the world . Highly effectual means of dispersal of some kind or other must certainly have been in operation , for it is clear that the distribution , at least of many groups , cannot have ...
Pagina 3
... occurrence at distant places of allied fresh - water forms having near relatives in the sea is considered . Fresh - water shells , it seems , if left to their own endeavours , would generally find great difficulty in extending their ...
... occurrence at distant places of allied fresh - water forms having near relatives in the sea is considered . Fresh - water shells , it seems , if left to their own endeavours , would generally find great difficulty in extending their ...
Pagina 6
... occur , associated , sometimes , with the smaller Planorbes ( generally spirorbis and vortex ) , and Physa fontinalis . The presence of bivalves , he adds , " is quite exceptional ; the smaller Pisidia , especially P. pusillum ...
... occur , associated , sometimes , with the smaller Planorbes ( generally spirorbis and vortex ) , and Physa fontinalis . The presence of bivalves , he adds , " is quite exceptional ; the smaller Pisidia , especially P. pusillum ...
Alte ediții - Afișează-le pe toate
The Dispersal of Shells: An Inquiry Into the Means of Dispersal Possessed by ... Harry Wallis Kew Vizualizare completă - 1893 |
The Dispersal of Shells: An Inquiry Into the Means of Dispersal Possessed by ... Harry Wallis Kew Vizualizare completă - 1893 |
The Dispersal of Shells: An Inquiry Into the Means of Dispersal Possessed by ... Harry Wallis Kew Vizualizare completă - 1893 |
Termeni și expresii frecvente
8vo Parchment Library A. E. WAITE alive animals aquatic attached Binney birds bivalves British Conchology Bulimus carried Cheap Edition clinging colony Conch Conchology creatures Crown 8vo Darwin distances distribution Dreissena polymorpha eggs Elzevir 8vo Parchment English epiphragm F. W. NEWMAN fauna Fcap feet Fifth Edition floating Fourth Edition fresh-water shells Frontispiece garden Grammar Helix Hist Illustrations India introduced islands J. G. Jeffreys Jeffreys Journ kinds Land and Fresh-water land-shells large numbers larvæ Limnæa peregra living Lyell means of dispersal miles molluscs mussel Naturalist numbers observed occasionally occurred Origin Parchment or cloth Philosophical Library Pisidia Planorbis Planorbis carinatus plants pond Portrait Post 8vo probably Professor remarked rivers Sanskrit Science Gossip Second Edition seems seen slugs Small 8vo snails species specimens Sphærium corneum Standen terrestrial Testacella Third Edition tion toes Translated transportal trees Trübner's Oriental Series Vellum vols water-beetles Zoologist
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