The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 310
... shells in most oceans . Superfamily Cypraeacea . Cowrie shells ( Cypraeidae ) and egg shells ( Ovulidae ) have highly polished and brilliantly coloured shells ; mantle , which may cover the shell , is a to- tally different colour ...
... shells in most oceans . Superfamily Cypraeacea . Cowrie shells ( Cypraeidae ) and egg shells ( Ovulidae ) have highly polished and brilliantly coloured shells ; mantle , which may cover the shell , is a to- tally different colour ...
Page 317
... shell structure and body form , notably with the possession of posterior protobranch gills and with palp proboscides ... shell . CLASSIFICATION No system of classification erected for the Bivalvia has been accepted by all ...
... shell structure and body form , notably with the possession of posterior protobranch gills and with palp proboscides ... shell . CLASSIFICATION No system of classification erected for the Bivalvia has been accepted by all ...
Page 318
... shell valves with a variable hinge den- tition ; aragonitic shell with outer prismatic and inner layers of nacre ; most approximately isomyarian ; ctenidia eulamelli- branch ; mantle fusions lacking , especially ventrally ; compli ...
... shell valves with a variable hinge den- tition ; aragonitic shell with outer prismatic and inner layers of nacre ; most approximately isomyarian ; ctenidia eulamelli- branch ; mantle fusions lacking , especially ventrally ; compli ...
Common terms and phrases
albite amphiboles ancient aragonite areas atoms basalt bivalves body calcite calcium called carbonate central centre century cephalopods chemical clay minerals colour common composition contain crust crystals ctenidia cult cultural deities deposits developed dolomite Earth economic eggs electron evaporite example existence facies feldspar Figure garnet gastropods goddess gods grains Hittite human igneous rocks important industrial kaolinite king known layers limestone magma magnetic major mantle cavity marine material mental metamorphic rocks metaphysics Mexican Mexico City mica Michelangelo microscope millimetres Milton mimicry mind Mineralogy modern Molière Mongolia Mongols Moscow myth nature object occur ocean olivine organic originally oxide percent period philosophers physical plagioclase political population pressure produced properties pyroxene quartz reaction region religion religious reprinted result sandstones sedimentary rocks sediments shell silicate smectite snails society species structure Sumerian surface temperature temple tetrahedrons texture tion typically United urban volcanic