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 2
... certainly have been in operation , for it is clear that the distribution , at least of many groups , cannot have resulted from gradual migration by ordinary modes of progression , and this is the more apparent , of course , with pre ...
... certainly have been in operation , for it is clear that the distribution , at least of many groups , cannot have resulted from gradual migration by ordinary modes of progression , and this is the more apparent , of course , with pre ...
Pagina 3
... certainly be taken into account , however , whenever the 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 ...
... certainly be taken into account , however , whenever the 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 ...
Pagina 5
... certainly a surprising fact , and it is remarkable that writers of local lists when recording the existence of shells in such places have so generally passed over the circumstance without comment . If multiple birthplaces were possible ...
... certainly a surprising fact , and it is remarkable that writers of local lists when recording the existence of shells in such places have so generally passed over the circumstance without comment . If multiple birthplaces were possible ...
Pagina 7
... certainly have been " transported uphill as well as across un- congenial tracts of dry grass , " or be descended from ancestors thus transported . Notwithstanding this ex- treme isolation , however , the ponds are often found to be ...
... certainly have been " transported uphill as well as across un- congenial tracts of dry grass , " or be descended from ancestors thus transported . Notwithstanding this ex- treme isolation , however , the ponds are often found to be ...
Pagina 9
... certainly seem to occur with some frequency . Uncon- genial conditions , Mr. Reid remarks , have probably much to do with the poverty of the fauna and flora in dew - ponds . Mr. Musson , who , also , has paid some attention to the ...
... certainly seem to occur with some frequency . Uncon- genial conditions , Mr. Reid remarks , have probably much to do with the poverty of the fauna and flora in dew - ponds . Mr. Musson , who , also , has paid some attention to the ...
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 |
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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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