The Sea Shore: With 61 Colour Photos. by D. P. Wilson and Others, 62 Black-and-white Photos. and 88 Text Figures |
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Page 118
... encrusting vegetation of small algae and lichens is rasped off and swallowed . As the teeth are worn away , and the fine scratches which can sometimes be seen on the rock after a limpet has passed indicate how hard the wear must be ...
... encrusting vegetation of small algae and lichens is rasped off and swallowed . As the teeth are worn away , and the fine scratches which can sometimes be seen on the rock after a limpet has passed indicate how hard the wear must be ...
Page 145
... encrusting mass . On the base of seaweeds it may be found growing as rounded lumps . The texture is unmistakably spongy ; when pressed water is forced out but on release of pressure the tissues swell again by drawing in water from those ...
... encrusting mass . On the base of seaweeds it may be found growing as rounded lumps . The texture is unmistakably spongy ; when pressed water is forced out but on release of pressure the tissues swell again by drawing in water from those ...
Page 189
... encrusting animal life is not so dense , weeds have a better chance of settling and long tangle - weeds may float upwards and obscure the base of the piles . At low water of spring tides the white- or orange - coloured masses of dead ...
... encrusting animal life is not so dense , weeds have a better chance of settling and long tangle - weeds may float upwards and obscure the base of the piles . At low water of spring tides the white- or orange - coloured masses of dead ...
Contents
INTRODUCTION | 1 |
THE DISCOVERY OF THE SEA SHORE | 7 |
THE INHABITANTS OF THE SHORE | 15 |
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acorn-barnacle algae amphipod anemones animals and plants Ascophyllum attached balanoides barnacles bivalves body bottom British burrow byssus Chthamalus coasts cockles colour common common periwinkle commonest crabs crustaceans D. P. Wilson dog-whelks eggs encrusting estuaries exposed exposure extend fauna feeding fish foot fresh water fronds Fucus gills grow growth habit hydroids inches long inhabitants intertidal isopod jellyfish Laminaria larger larvae limpets live low tide low water marine molluscs mouth movement muscles mussels nature numbers oyster periwinkles Photographed under water plankton polyzoans population prawns protection ragworms razor-shells red weeds region rock pools rocky shores rough periwinkle rounded salinity sand sandy shores sea-squirts seaweeds shallow shell valves shelter shipworms shore animals shown in Plate shrimps siphons snails spawning species spines sponges spring tides squat lobsters starfish sub-littoral sub-littoral zone surface swimming temperature tentacles tidal tide marks top-shells tube tube-worms usually wide worms wrack young