A Manual of the Land and Fresh-water Shells of the British IslandsLongman, Orme, Brown, Green, and Longmans, 1840 - 324 стор. |
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Сторінка 5
... whorls . The ani- mal elongates the shell without enlarging the size of the whorls , until it has perfected 6 or 8 whorls ; it then gradually enlarges the whorls , and rather contracts them again before it has completed its 8 or B 3 ...
... whorls . The ani- mal elongates the shell without enlarging the size of the whorls , until it has perfected 6 or 8 whorls ; it then gradually enlarges the whorls , and rather contracts them again before it has completed its 8 or B 3 ...
Сторінка 6
... whorls , and forms its perfect mouth . When the animal has formed whorls enough of the tapering kind to contain that part of the body which was in the small whorls , it secretes a conical tapering septum between them and the slender ...
... whorls , and forms its perfect mouth . When the animal has formed whorls enough of the tapering kind to contain that part of the body which was in the small whorls , it secretes a conical tapering septum between them and the slender ...
Сторінка 74
... whorl which was first formed is generally large and blunt , com- pared with the size of the shell . They are always destitute of colour , for the animal does not deposit the colouring matter until after it has been hatched ; and it is ...
... whorl which was first formed is generally large and blunt , com- pared with the size of the shell . They are always destitute of colour , for the animal does not deposit the colouring matter until after it has been hatched ; and it is ...
Сторінка 82
... whorls of the spire , when they have arrived at their full size , so as to allow more room for the spiral body ... whorl is exposed on the surface . A similar absorption is to be observed in many Auriculidæ , and to a less extent in the ...
... whorls of the spire , when they have arrived at their full size , so as to allow more room for the spiral body ... whorl is exposed on the surface . A similar absorption is to be observed in many Auriculidæ , and to a less extent in the ...
Сторінка 96
... whorls , is an exserted filiform member ( p . 78. f . 12. ) like a tentacle , but rather shorter and thicker , which is called the branchial thread by Lamarck . The shell conical , thin , covered with an olive peri- ostraca ; the mouth ...
... whorls , is an exserted filiform member ( p . 78. f . 12. ) like a tentacle , but rather shorter and thicker , which is called the branchial thread by Lamarck . The shell conical , thin , covered with an olive peri- ostraca ; the mouth ...
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Manual of the Land and Fresh-water Shells of the British Islands: With ... William Turton Повний перегляд - 1857 |
Manual of the Land and Fresh-water Shells of the British Islands: With ... William Turton Повний перегляд - 1857 |
Загальні терміни та фрази
2d Edition Alder animal aperture bands Brard Brit British brown Bulimus Carychium minimum Clausilia cloth colour Conch conchologists conical convex Cyclas Cyclostoma Dict Drap Draparnaud edge elongate Engravings epiphragm Fauna Fcap Férus Férussac Foolscap 8vo foot genus Helix Hist History horn-colour hortensis Icon Inhab J. C. Loudon Jeffreys Journ Leach Limax Limnæus Linn London longitudinal mantle margin Moll Mollusca Mont Montagu mouth Müller nearly Nilson oblique oblong observes operculum outer lip oval pale Paludina periostraca peristome Pfeiffer Physa Physa fontinalis pillar Pisidium Pisidium amnicum Planorbis Planorbis carinatus Plates Pupa Rossm rounded Shell ovate slightly Snail Sowerby species specimens spiral striæ striated Sturm Succinea teeth tentacles thickened thin Trans transparent Turbo Turton umbilicus Unio Valvata Valvata cristata variety ventricose Verm Vertigo Vertigo alpestris Vignette Titles Vitrina pellucida vols volutions whorls Wood Woodcuts yellowish young shells Zonites Zool
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