A Manual of the Land and Fresh-water Shells of the British IslandsLongman, Orme, Brown, Green, and Longmans, 1840 - 324 páginas |
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Página 66
... peristome not continued . * Mouth transverse , lunate ; shell depressed . 8. VITRINA . Shell imperforated ; mouth large . 11. ZONITES . derate . Shell perforated , or umbilicated ; mouth mo- ( Helices , Pupa , Clausilia , & c . , when ...
... peristome not continued . * Mouth transverse , lunate ; shell depressed . 8. VITRINA . Shell imperforated ; mouth large . 11. ZONITES . derate . Shell perforated , or umbilicated ; mouth mo- ( Helices , Pupa , Clausilia , & c . , when ...
Página 67
... peristome not thickened , continued . * Shell grooved , variegated , ovate ; mouth suborbicular . 32. CYCLOSTOMA . ** Shell smooth , olive ; mouth ovate or orbicular . 5. VALVATA . Shell conical or depressed , umbilicated ; mouth ...
... peristome not thickened , continued . * Shell grooved , variegated , ovate ; mouth suborbicular . 32. CYCLOSTOMA . ** Shell smooth , olive ; mouth ovate or orbicular . 5. VALVATA . Shell conical or depressed , umbilicated ; mouth ...
Página 87
... , and has a horny spiral opercu- lum , like the periwinkle ; the peristome is continued ; the shell is often covered with green Algæ . 2. LITTORINA muriatica . Turbo muriaticus Linn . Cyclostoma acutum MELANIADE . 87.
... , and has a horny spiral opercu- lum , like the periwinkle ; the peristome is continued ; the shell is often covered with green Algæ . 2. LITTORINA muriatica . Turbo muriaticus Linn . Cyclostoma acutum MELANIADE . 87.
Página 89
... peristome continued ; operculum horny or shelly , formed of concentric laminæ , with a subcentral nucleus . ( p . 78. f . 8. and 11. ) They are all fluviatile . The animals were confounded by Lamarck , in his first works , with the ...
... peristome continued ; operculum horny or shelly , formed of concentric laminæ , with a subcentral nucleus . ( p . 78. f . 8. and 11. ) They are all fluviatile . The animals were confounded by Lamarck , in his first works , with the ...
Página 90
... peristome united all round , thin . ( p . 78. f . 7. ) They are called Paludina from their being found in marshes and ditches . The animals are viviparous , the young being hatched while the eggs are in the oviduct of the mother . The ...
... peristome united all round , thin . ( p . 78. f . 7. ) They are called Paludina from their being found in marshes and ditches . The animals are viviparous , the young being hatched while the eggs are in the oviduct of the mother . The ...
Outras edições - Ver tudo
A Manual of the Land and Fresh-water Shells of the British Islands William Turton,John Edward Gray Visualização integral - 1840 |
MANUAL OF THE LAND & FRESH-WAT William 1762-1835 Turton,John Edward 1800-1875 Gray Pré-visualização indisponível - 2016 |
Palavras e frases frequentes
Achatina Alder animal aperture bands Brard Brit British brown Brug Bulimus Carychium minimum Clausilia cloth lettered colour Conch conchologists conical convex Cyclas Cyclostoma Dict Drap Draparnaud edge Edition elongate epiphragm Fauna Férus Férussac foot genus Helix Hist horn-colour hortensis Icon inch in diameter Inhab Jeffreys Jenyns Journ Land and Fresh-water Leach Limax Limnæus Linn longitudinal mantle margin Moll Mollusca Mont Montagu Müller nearly Nilson oblique oblong observes operculum outer lip oval pale Paludina periostraca peristome Pfeiffer Phil Physa Physa fontinalis pillar Pisidium Pisidium amnicum plaits Planorbis Planorbis carinatus Pupa Rossm rounded Shell ovate slightly Snail Sowerby species specimens spiral spire composed striæ striated Sturm Succinea Succinea putris teeth tentacles Testacella thickened thin Trans transparent Turbo Turton umbilicus Unio Valvata Valvata cristata variety ventricose Verm Vertigo Vertigo alpestris Vitrina Vitrina pellucida vols volutions whorls yellowish young shells Zonites Zool